{"title":"2025 ISI CATALOG","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eABOUT THE INTERNATIONAL SUCCULENT INTRODUCTIONS PROGRAM AT THE HUNTINGTON\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eInternational Succulent Introductions is the plant distribution program of The Huntington, a private institution with a world-renowned Desert Garden. The ISI program has had a long-standing association with The Huntington since shortly after its inception in 1958. The program was adopted in its entirety by The Huntington in 1989 and furthers the institution’s dedication to aesthetics, education, conservation and scientific study.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe aim of International Succulent Introductions is to propagate and distribute new or rare succulents to collectors, nurseries and institutions. In keeping with sound conservation practices, field-collected plants are not sold. We offer only propagated seedlings, grafts and rooted cuttings produced under nursery conditions without detriment to wild populations. Income is used solely to support this program.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAll images used on this site are subject to copyright. Images may not be used elsewherewithout permission.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eTo view archives and learn more about the International Succulent Introductions program, please visit \u003ca href=\"https:\/\/media.huntington.org\/ISI\/catalogintro.html\" title=\"https:\/\/media.huntington.org\/ISI\/catalogintro.html\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"isi-2025-cylindropuntia-ramosissima","title":"ISI 2025-1 Cylindropuntia ramosissima","description":"\u003cp\u003e\u003cspan\u003eISI 2025-1 \u003cem\u003eCylindropuntia ramosissima\u003c\/em\u003e (Engelm.) F.M.Knuth\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNative to the Mojave and Sonoran Deserts of California, Nevada, Arizona, Sonora and Baja California, this common, slender stemmed cholla is known by a couple of common names: branched pencil cholla, in reference to its slender, pencil-thick stems, or diamond cholla, in reference to the flattened, diamond-shaped tubercles that cover the stems. It can develop into a much-branched, rather uncactus-like shrub to 2 m. Stems may be spineless or bear a few 2-inch long spines near the stem tips. Flowers are rather rarely seen, perhaps because dislodged joints root easily. Therefore, the plants may rely on vegetative propagules for dispersal as much or more so than sexual reproduction in nature. The form offered here is not only spineless, but crested as well, contorting into fantastic fans. Remove any cylindrical reversions to maintain the crest which, in time, can form a sculptural specimen of fans stacked upon fans. We offer rooted cuts of HBG 139942, a plant received from Jorge Quiñonez, who obtained it from master cactus grower Marc Beckstrom, who has grown the plant in his Livermore, CA, garden for more than 20 years.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217993355522,"sku":null,"price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-01b.jpg?v=1779135681"},{"product_id":"isi-2025-mammillaria-varieaculeata","title":"ISI 2025-2 Mammillaria varieaculeata","description":"\u003cp\u003e\u003cspan\u003eISI 2025-2 \u003cem\u003eMammillaria varieaculeata\u003c\/em\u003e Franc.G.Buchenau\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrancisco Buchenau described this species in \u003c\/span\u003e\u003ci\u003eCactaceas y Succulentas Mexicanas\u003c\/i\u003e\u003cspan\u003e 11 (4): 79 – 81 (1966). He suggested that it belonged to a group including \u003c\/span\u003e\u003ci\u003eM. huahuapensis\u003c\/i\u003e\u003cspan\u003e, \u003c\/span\u003e\u003ci\u003eM. mixtecensis\u003c\/i\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003ci\u003eM. casoi\u003c\/i\u003e\u003cspan\u003e. All of those are now considered synonyms of the highly variable species \u003c\/span\u003e\u003ci\u003eM. mystax\u003c\/i\u003e\u003cspan\u003e. Like some forms of \u003c\/span\u003e\u003ci\u003eM. mystax\u003c\/i\u003e\u003cspan\u003e, \u003c\/span\u003e\u003ci\u003eM. varieaculeata\u003c\/i\u003e\u003cspan\u003e is variable with regard to central spines. According to Pilbeam (\u003c\/span\u003e\u003ci\u003eMammillaria, The Cactus File Handbook\u003c\/i\u003e\u003cspan\u003e 6, 1999), these can number from “1-5, 4-5 in young plants, later 2-3, finally 1-2.” Further, he notes that these centrals are “4 to 12mm long , later mostly 5 to 10mm, but with odd spines to 45mm, strong needle-like, at first dark or reddish brown, later paler.” This all sounds very definitive, but given such variation, this progression is not so clear. In cultivation we find that most heads, regardless of age, will have central spines about equal in length to the 17 to 20 radials. As in some forms of \u003c\/span\u003e\u003ci\u003eM. mystax\u003c\/i\u003e\u003cspan\u003e, under the right conditions, impressive, long centrals are produced in the upper areoles of some heads. It is unclear what conditions to provide to predictably create long-spined areoles, though high ultraviolet light and sufficient mineral availability may be factors. In any case, the plants offset to create impressive, densely spined mounds, not prone to blemishing, and especially spectacular when each head is crowned with a ring of cheery, bright magenta flowers. We offer rooted cuts of HBG 133882, a plant originally from the Woody Minnich collection, without precise data. However, the species is reported from the Mexican state of Puebla, south of Chilac.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217993388290,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-02.jpg?v=1779135557"},{"product_id":"isi-2025-pilosocereus-hermii","title":"ISI 2025-3 Pilosocereus hermii","description":"\u003cp\u003e\u003cspan\u003eISI 2025-3 \u003cem\u003ePilosocereus hermii \u003c\/em\u003eP.J.Braun, Esteves \u0026amp; Hofacker\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis Brazilian columnar cactus was described in the German journal \u003c\/span\u003e\u003ci\u003eKakteen und andere Sukkulenten\u003c\/i\u003e\u003cspan\u003e 58 (7): 183-188 (2007). At the time of its description, fruit and seed were not available. Therefore, its affinities could not be completely determined. However, it was suggested that it might be closest to the more widely distributed \u003c\/span\u003e\u003ci\u003eP. pachycladus\u003c\/i\u003e\u003cspan\u003e of northeastern Brazil. Indeed, some botanists now consider \u003c\/span\u003e\u003ci\u003eP. hermii\u003c\/i\u003e\u003cspan\u003e to be a synonym of \u003c\/span\u003e\u003ci\u003eP. pachycladus\u003c\/i\u003e\u003cspan\u003e. However, further study (G. Olsthoorn, \u003c\/span\u003e\u003ci\u003eKuaS\u003c\/i\u003e\u003cspan\u003e 69(10) 2018) has confirmed the distinctness of this species. \u003c\/span\u003e\u003ci\u003eP. hermii\u003c\/i\u003e\u003cspan\u003e has stems with 8 - 10 ribs within the range for \u003c\/span\u003e\u003ci\u003eP. pachycladus\u003c\/i\u003e\u003cspan\u003e subsp. \u003c\/span\u003e\u003ci\u003epachycladus\u003c\/i\u003e\u003cspan\u003e but, unlike that subspecies, lacks long central spines, instead having short pectinate spines mostly concealed in wool lining the ribs. Our seedlings still have slightly spinier areoles presumably until they grow to a less vulnerable size. From seed collected at the type locality, N of Buritis, along a tributary of the Rio Urucuia, Minas Gerais, Brazil.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217993421058,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-03.jpg?v=1779135507"},{"product_id":"isi-2025-pilosocereus-lanuginosus","title":"ISI 2025-4 Pilosocereus lanuginosus","description":"\u003cp\u003e\u003cspan\u003eISI 2025-4 Pilosocereus lanuginosus (L.) Byles \u0026amp; G.D.Rowley\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe wild origin of this distinctive, spiny form of the widespread and variable Caribbean and South American species remains a mystery. It came to us from the late collector Conrad Fleming (1951-2020) whose garden in the U.S. Virgin Islands regularly suffered from the ravages of frequent hurricanes. Conrad made the best of the situation by generously sharing cuttings of these plants with botanical gardens and collectors far and wide. Over the last decade we have gradually propagated enough to share through the ISI. We offer rooted cuttings of HBG 66842, a cutting received in May, 1990, collected by Conrad in the Netherlands Antilles on the island of Curaçao, from which the species was described by Linnaeus (as \u003c\/span\u003e\u003ci\u003eCactus lanuginosus\u003c\/i\u003e\u003cspan\u003e). The locality given was Santa Rosa Weg, Dutch for Santa Rosa Way. Santa Rosa is a district of the main town of Willemstad and there is indeed a street of that name. Alas, I never clarified with Conrad exactly where he collected this plant, but photos by Paul Hoxey of plants growing naturally in Curaçao are a good match for our plants which may sport somewhat denser spination at their current size.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217993453826,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-04.jpg?v=1779135408"},{"product_id":"isi-2025-rebutia-fabrisii-var-aureiflora","title":"ISI 2025-5 Rebutia fabrisii var. aureiflora","description":"\u003cp\u003e\u003cspan\u003eISI 2025-5 \u003cem\u003eRebutia fabrisii\u003c\/em\u003e var. \u003cem\u003eaureiflora \u003c\/em\u003eRausch\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProlific Austrian cactus explorer Walter Rausch (1928-2022) described more than 400 cactus taxa resulting from his explorations of cactus habitats of South America. Many of these have since been synonymized by later taxonomists. Nevertheless, many of his collections, or their progeny, persist in cultivation and provide a fascinating and valuable sampling of these rich cactus floras, especially those of Bolivia and Argentina. The plant offered here is now considered to be merely a yellow-flowered form of the typically red-orange-flowered \u003c\/span\u003e\u003ci\u003eR. fabrisii\u003c\/i\u003e\u003cspan\u003e. However, we offer it under the varietal name \u003c\/span\u003e\u003ci\u003eaureiflora\u003c\/i\u003e\u003cspan\u003e, meaning yellow-flowered, that was published at the same time as the species (\u003c\/span\u003e\u003ci\u003eKuaS\u003c\/i\u003e\u003cspan\u003e 28(3): 52-53 (1977)) to distinguish this beautiful golden-yellow-flowered miniature. The small heads (1-2 cm) are densely covered in fine, bristly spines and clump to form clusters of dozens of heads, resulting in a magnificent show when flowering. We offer divisions of HBG 120104, a plant obtained from John Pilbeam in 2006. This is the clonotype of the variety collected by Rausch, WR 687, collected at 2000 m altitude, between Valle Colorado and Valle Grande, Jujuy, Argentina. Its montane origin makes it tolerant of bright light and frost hardy to the teens °F or lower.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217993486594,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-05.jpg?v=1779135322"},{"product_id":"isi-2025-tephrocactus-alexanderi","title":"ISI 2025-6 Tephrocactus alexanderi","description":"\u003cp\u003e\u003cspan\u003eISI 2025-6 \u003cem\u003eTephrocactus alexanderi\u003c\/em\u003e (A.Cast.) Backeb.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOne of the most awarded specimens in southern California cactus and succulent shows is a magnificent pan full of this globular-jointed opuntioid looking like a heap of gray golf balls. It is shown by Greg and Anna Cavanaugh under the name \u003c\/span\u003e\u003ci\u003eTephrocactus geometricus\u003c\/i\u003e\u003cspan\u003e, considered by some to be a synonym of \u003c\/span\u003e\u003ci\u003eT. alexanderi\u003c\/i\u003e\u003cspan\u003e, a NW Argentine cactus species. It differs in having fewer spines, or none at all, making this such a popular plant. Not only is one less likely to be impaled by barbed spines, but the nude, gray stems are a fascinating example of extreme succulence. The globular joints are nearly spherical, presenting the minimum of epidermal surface area from which to lose water, and the maximum volume in which to store it. The plants we offer were forged in the heat of Tucson, AZ, by Gene Joseph of Plants for the Southwest nursery. They were grown from seed produced on rooted cuts of the show specimen mentioned above and similar globular-jointed and spineless forms of the species. We offer seedlings from seed sown July, 2022. The initial cladodes are slightly elongated but the plants produce more spherical joints as they branch.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217994830082,"sku":null,"price":35.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-06b.jpg?v=1779135247"},{"product_id":"isi-2025-adenium-socotranum","title":"ISI 2025-7 Adenium socotranum","description":"\u003cp\u003e\u003cspan\u003eISI 2025-7 \u003cem\u003eAdenium socotranum\u003c\/em\u003e Vierh.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis extreme succulent has been much in demand, especially since a photo of magnificent specimens in habitat made the cover of the \u003c\/span\u003e\u003ci\u003eCactus and Succulent Journal\u003c\/i\u003e\u003cspan\u003e in Sep-Oct., 2000. Since then, some unscrupulous vendors have tried to pass off \u003c\/span\u003e\u003ci\u003eA. obesum\u003c\/i\u003e\u003cspan\u003e or A. arabicum\u003c\/span\u003e\u003ci\u003e\u003c\/i\u003e\u003cspan\u003e as the Socotran species. Those others are at least easier to grow than \u003c\/span\u003e\u003ci\u003eA. socotranum\u003c\/i\u003e\u003cspan\u003e. We have managed to sustain a plant field-collected by John Lavranos in 1967 by keeping it in a small pot in our Conservatory and watering carefully. Thirty years later, Lavranos was able to return to Socotra with German botanist Bruno Mies who has done botanical research on the island every year since 1993. He was able to collect seed of the adenium in 1997. Seedlings from this collection were distributed in 2004 as ISI 2004-5.\u003c\/span\u003e\u003cspan\u003e Success in cultivation with these has been in warm greenhouse conditions where minimum temperatures do not go below about 50°F or warmer, or by growing them outdoors in more tropical climates like that of southern Taiwan or Thailand. This allows the plants to tolerate regular watering, though less when dormant. Nevertheless, plants tend to grow up before they grow out, creating pachycauls with long, tapering, solitary trunks. Joe Stead has been particularly successful in growing healthy compact plants in his greenhouses at Orange Coast College and has offered the current crop for ISI distribution. His conditions, with minimum night temperatures of about 70°F, seem to promote rapid thickening. There is no confusion about their identity. They were grown from seed from hand-pollination under controlled conditions of three plants from seed from the same collection as \u003c\/span\u003e\u003ca title=\"Adenium socotranum seedling\" href=\"https:\/\/media.huntington.org\/ISI\/ISI2004\/2004-05.html\"\u003eISI 2004-5\u003c\/a\u003e\u003cspan\u003e: Bruno Mies # 667 (not 676 as originally published), seed collected March 17, 1997, ca. 120m above sea level, near the village of Di-Ishal at the N end of Wadi di Faroh, Socotra. These very plants are the subject of the article about propagation of this species in the Summer 2025 issue of the \u003c\/span\u003e\u003ci\u003eJournal\u003c\/i\u003e\u003cspan\u003e. We offer this next generation.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217994895618,"sku":null,"price":50.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-07.jpg?v=1779135154"},{"product_id":"isi-2025-aeonium-aureum","title":"ISI 2025-8 Aeonium aureum","description":"\u003cp\u003e\u003cspan\u003eISI 2025-8 \u003cem\u003eAeonium aureum\u003c\/em\u003e (C.Sm. ex Hornem.) T.Mes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe stemless \u003c\/span\u003e\u003ci\u003eAeonium\u003c\/i\u003e\u003cspan\u003e species with attractive, urn-shaped dormant rosettes were formerly placed in the genus \u003c\/span\u003e\u003ci\u003eGreenovia\u003c\/i\u003e\u003cspan\u003e, now considered a synonym of \u003c\/span\u003e\u003ci\u003eAeonium\u003c\/i\u003e\u003cspan\u003e. Therefore, one will often see this plant in the literature or online as \u003c\/span\u003e\u003ci\u003eGreenovia aurea\u003c\/i\u003e\u003cspan\u003e. It is found on several of the Canary Islands but this offering traces its lineage to Gran Canaria where the species is reported to form impressive, large rosettes to 30 cm diameter! We offer HBG 142014, later generation plants from open-pollinated, selfed seed. The dust-like seed was sown January 4, 2023.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996239106,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-08.jpg?v=1779135083"},{"product_id":"isi-2025-aeonium-lavransonii-newtonii","title":"ISI 2025-9 Aeonium lavranosii-newtonii","description":"\u003cp\u003e\u003cspan\u003eISI 2025-9 \u003cem\u003eAeonium lavranosii-newtonii \u003c\/em\u003eMellie Lewis\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe publication of this distinctive species has been a long time coming. In the interim it has become established in cultivation and can be found on the internet erroneously identified as \u003c\/span\u003e\u003ci\u003eA. leucoblepharum\u003c\/i\u003e\u003cspan\u003e. It differs from most other aeoniums in its leaves having a persistent red midstripe and the tendency of the rest of the leaf to blush an attractive pinkish or orangish color. While ciliate, like \u003c\/span\u003e\u003ci\u003eA. leucoblepharum\u003c\/i\u003e\u003cspan\u003e, the so-called eyelash aeonium, the cilia, rather than being hairlike, are curved, glassy, inflated, translucent, hook-like structures, reminiscent under magnification of the early stages of the sporulating slime mold, \u003c\/span\u003e\u003ci\u003ePilobolus\u003c\/i\u003e\u003cspan\u003e. Its distribution is restricted to northern Yemen while \u003c\/span\u003e\u003ci\u003eA. leucoblepharum\u003c\/i\u003e\u003cspan\u003e is found in E. Africa including Djibouti, Eritrea, Ethiopia, Kenya, Somalia, Uganda, and probably South Sudan as well, according to \u003c\/span\u003e\u003ci\u003eAeonium\u003c\/i\u003e\u003cspan\u003e authority Marco Cristini. On October 1, 1976, noted botanists and succulent explorers John Lavranos and Len Newton found this plant (L\u0026amp;N 13084) at the top of Sumara Pass on the road from Sana’a to Hodeida, Yemen. A year later, Lavranos returned with Gerald Barad and collected the species in another nearby gorge below the Himyarartic Fort above Sumara Pass (L\u0026amp;B 15996). This is HBG 39507, distributed as ISI 1730 (as \u003c\/span\u003e\u003ci\u003eA. leucoblepharum\u003c\/i\u003e\u003cspan\u003e var. \u003c\/span\u003e\u003ci\u003eleucoblepharum\u003c\/i\u003e\u003cspan\u003e), listed as Barad \u0026amp; Lavranos 15996, collected September 27, 1977, according to Mellie Lewis in the description of \u003c\/span\u003e\u003ci\u003eA. lavranosii-newtonii\u003c\/i\u003e\u003cspan\u003e, at 2500 m above Sumara Pass. Fast forward to October, 2007, when the Huntington hosted its annual Orchid Festival. Local florists, Bob and Stella Berry created a magnificent large-scale arrangement on the Huntington Gallery Loggia. Included were rosettes of this plant which I begged off of them after the show. I tentatively identified it as a form of \u003c\/span\u003e\u003ci\u003eAeonium decorum\u003c\/i\u003e\u003cspan\u003e which can also have leaves with a red midstripe but usually only on juvenile plants. In order to distinguish this form, I called it \u003c\/span\u003e\u003ci\u003eAeonium decorum\u003c\/i\u003e\u003cspan\u003e ‘Berry Nice’ in honor of our source and with a nod to its lovely, blushed color. This is the name under which it was marketed at our sales and by wholesale grower San Marcos Growers. Subsequently, I realized that we had long-standing mass plantings of the species in our Desert Garden. However, there was no accession record for Aeonium ‘Berry Nice’. After some sleuthing of our records, it became apparent that we had been growing two of the three Lavranos collections of this species: Lavranos \u0026amp; Newton 13082 (not an HBG accession), Lavranos \u0026amp; Barad 15996 (HBG 39507), and Lavranos 16227 (HBG 39962). Though labels rusted or were lost in the intervening years, the Huntington shared material with other growers and nurseries so that the species became established in southern California horticulture and made its way into the Berry’s floral arrangement. We are pleased to be able to offer rooted cuttings of this Yemeni species. Alas, we cannot be certain which Lavranos number applies. Nevertheless, we can be certain that this is \u003c\/span\u003e\u003ci\u003eA. lavranosii-newtonii\u003c\/i\u003e\u003cspan\u003e from the Sumara Pass area, Yemen. The genetic diversity of plants in cultivation and the wild has yet to be studied but those grown in the U.S. and Europe seem to be quite uniform and may constitute one predominant clone. We offer it under a new accession number.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996271874,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-09.jpg?v=1779134971"},{"product_id":"isi-2025-aloe-corazon-adriente","title":"ISI 2025-10 Aloe 'Corazon Ardiente'","description":"\u003cp\u003e\u003cspan\u003eISI 2025-10 \u003cem\u003eAloe \u003c\/em\u003e'Corazon Ardiente' K.Zimmerman\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is one of two aloe hybrids to be introduced this year by Karen Zimmerman and our top-notch tissue culture team. “Corazón ardiente” means “blazing heart” in Spanish, and it perfectly reflects the colors of this plant sparked not only by heat and bright light, but also cool, short days when growth slows down. Colors range from pinkish red to golden orange, like a romantic sunset. The intense colors are concentrated on the crowded ridged surface teeth, while the leaf margins are fringed with small, reddish-orange teeth. The photos here show the colors achieved when grown in our greenhouse. With brighter outdoor light, the colors will be even stronger! We offer rooted offsets from tissue culture of HBG 143915.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996304642,"sku":null,"price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-10.jpg?v=1779134455"},{"product_id":"isi-2025-aloe-gwen","title":"ISI 2025-11 Aloe 'Gwen'","description":"\u003cp\u003e\u003cspan\u003eISI 2025-11 \u003cem\u003eAloe \u003c\/em\u003e'Gwen' J.Trager\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn November, 2007, I [John Trager] visited the San Marino garden of Gwen Babcock, a dear friend and supporter of the Huntington’s Desert Collections. I was interested in checking on a succulent installation we had worked on a few years before. Many of the plants thrived on a south facing slope that received some dappled morning and afternoon shade. Not all of the plants performed as well as hoped, so Gwen made a few substitutions over the years. One addition was a clumping aloe with attractive, compact racemes of orange flowers. It appeared to be a form of \u003c\/span\u003e\u003ci\u003eAloe camperi\u003c\/i\u003e\u003cspan\u003e but with flowers in November. This represented a highly desirable extension of the flowering season for this species. We grow other forms that typically flower in April or, with the cultivar ‘May Day’, as late as the month of May! The plant did well in a container in our shade house, gradually increasing in size and beauty. Finally, in March of 2016, the plant had filled a 10\" pot and was demanding more root room. We planted it at the bottom of the Desert Garden along the edge of the road that borders the west side of the Desert Garden and separates it from the Lily Ponds across the road. It thrived there and its cheery orange flowers were a nice complement to the orange fruits of the jelly palm, \u003c\/span\u003e\u003ci\u003eButia capitata\u003c\/i\u003e\u003cspan\u003e, that partly shades the bed. The plant proliferated over the next few years until we were able divide it and make a more impressive mass in this bed. When in flower, it never fails to impress with its tidy racemes and vivid color inspiring many who see it to photograph the scene. The rest of the year the low growing rosettes, only a foot or so tall, showed no tendency toward tip die-back or other blemishes, nor any sensitivity to the occasional frost experienced during winter in this part of the garden. Instead, it presents clean foliage with attractive white spotting and margins with prominent teeth that color up a glossy reddish-roan color. By 2023 the mass was becoming dense with offsetting clumps, affording the opportunity to divide and spread it around. The timing was convenient as we needed some showy material for the design of the new rockeries of volcanic scoria that we had just installed in the upper Desert Garden. We were delighted to find that not only did it flower spectacularly in November and December, as expected, but flowering persisted into the spring. The stemless, clumping rosettes suggested to visiting aloe expert Tom McCoy that this was a hybrid of \u003c\/span\u003e\u003ci\u003eA. camperi\u003c\/i\u003e\u003cspan\u003e, perhaps with \u003c\/span\u003e\u003ci\u003eA. zubb\u003c\/i\u003e\u003cspan\u003e, accounting for its repeat blooming. The cultivar name still stands and can serve to honor anyone named Gwen that you may be fond of. The plant has proven to be an ideal choice for small landscapes where it earns its keep with a long-lasting floral show and ease of care. Therefore, we initiated the plant into tissue culture to expedite this offering. Rooted plants of HBG 119912.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996370178,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-11.jpg?v=1779134298"},{"product_id":"isi-2025-aloe-hanky-panky","title":"ISI 2025-12 Aloe 'Hanky Panky'","description":"\u003cp\u003e\u003cspan\u003eISI 2025-12 \u003cem\u003eAloe \u003c\/em\u003e'Hanky Panky'\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis little troublemaker is the sibling of \u003c\/span\u003e\u003ci\u003eAloe\u003c\/i\u003e\u003cspan\u003e ‘Hodge Podge’ (\u003c\/span\u003e\u003ca href=\"https:\/\/media.huntington.org\/ISI\/ISI2023\/2023-09.html\" title=\"Aloe ‘Hodge Podge’\"\u003eISI 2023-9\u003c\/a\u003e\u003cspan\u003e). At the time, Karen struggled to decide between the two, as 'Hodge Podge' sports an eclectic mosaic of toothy textures but isn’t as colorful as 'Hanky Panky'. 'Hodge Podge' also has a cleaner growth habit (read fewer pesky offsets). However, Hanky has not faded with age, nor has it stopped vying for attention. Its deep, ruddy, red-orange coloring is difficult to ignore, and it has some of the same funky tooth clusters that distinguish ‘Hodge Podge’. Karen finally relented and decided to add her to our ISI family. We offer rooted offsets from tissue culture of HBG 143916.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996435714,"sku":null,"price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-12.jpg?v=1779134189"},{"product_id":"isi-2025-aloe-labworana","title":"ISI 2025-13 Aloe labworana 'Gold Dust'","description":"\u003cp\u003e\u003cspan\u003eISI 2025-13 \u003cem\u003eAloe labworana\u003c\/em\u003e 'Gold Dust' J.Trager\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis uncommon species seemed to enter southern California horticulture only in the last decade or so. This was due to the introductions made by Thomas Cole of Cold Springs Aloes, in Montecito, CA. He encountered the species in the course of his travels as a humanitarian aid worker in remote parts of Africa. He donated some of his collections to the Huntington and we grew to appreciate the ornamental species he was bringing to the attention of succulent collectors. Among these was \u003c\/span\u003e\u003ci\u003eAloe labworana\u003c\/i\u003e\u003cspan\u003e, a species from Uganda and southern Sudan with showy panicles of yellow flowers borne on divergent racemes. While producing their \u003c\/span\u003e\u003ci\u003eAloes of Uganda: A Field Guide\u003c\/i\u003e\u003cspan\u003e (2017) Cole and Forrest described \u003c\/span\u003e\u003ci\u003eAloe labworana\u003c\/i\u003e\u003cspan\u003e subsp. \u003c\/span\u003e\u003ci\u003elongifolia\u003c\/i\u003e\u003cspan\u003e which differs from the type subspecies in having longer, unspotted and more uniformly blue-green leaves. \u003c\/span\u003e\u003ci\u003eA. labworana\u003c\/i\u003e\u003cspan\u003e subsp. \u003c\/span\u003e\u003ci\u003elabworana\u003c\/i\u003e\u003cspan\u003e has leaves of a similar color but ornamented with lenticular (shaped like a lens when viewed in cross section) spots. These markings can vary in color from greenish to yellow. The selection offered here stands out for its especially colorful yellow spotting that complements the color of its flowers. New leaves also display waxy, milky, bud imprints. We offer plants from tissue culture of HBG 124741, a plant from Tom Cole, November 2, 2015, from seed collected in Uganda; Abim District; Labwor Hills, near Kiru.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996468482,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-13b.jpg?v=1779134120"},{"product_id":"isi-2025-aloe-retrospiciens","title":"ISI 2025-14 Aloe retrospiciens","description":"\u003cp\u003e\u003cspan\u003eISI 2025-14 \u003cem\u003eAloe retrospiciens\u003c\/em\u003e Reynolds \u0026amp; P.R.O. Bally\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis rarely cultivated aloe is native to limited areas of N Somalia and SE Ethiopia. It is a small arborescent species to about 1.25 m (about 4') tall. It can be solitary or branched from the base to form 2- to 6-branched colonies. We haven’t grown our plants to maturity but look forward to seeing the flowers which are described as being secund (arranged along the tops of the racemes) and pointed backwards on a broad panicle. An inflorescence of a plant given to the Huntington was initiated into tissue culture, May 26, 2021. The inflorescence came from a plant of Daniel Gledhill’s which he received from Alexandre Viossat. Viossat grew his from controlled pollination of plants grown from Giuseppe Orlando collection GO 230804, seed collected November 8, 2003, at 860 m altitude, about 60 km NNE of Boorama, Somalia. We offer plants from tissue culture of HBG 139277.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996501250,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-14.jpg?v=1779134028"},{"product_id":"isi-2025-aloe-sinana","title":"ISI 2025-15 Aloe sinana","description":"\u003cp\u003e\u003cspan\u003eISI 2025-15 \u003cem\u003eAloe sinana\u003c\/em\u003e Reynolds\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn April and May of 1956, aloe authority Gilbert Westacott Reynolds travelled over 3,000 miles through Eritrea and Ethiopia investigating aloes. Ten species encountered were subsequently described as new to science. Samples of four of these were sent back to Johannesburg to flower and be described later. Six, including this one, were published the following year in the \u003c\/span\u003e\u003ci\u003eSouth African Journal of Botany\u003c\/i\u003e\u003cspan\u003e (SAJB 23(1): 3 -5, 1957). Like the more familiar \u003c\/span\u003e\u003ci\u003eA. camperi\u003c\/i\u003e\u003cspan\u003e which is also of Ethiopian origin, the related \u003c\/span\u003e\u003ci\u003eA. sinana\u003c\/i\u003e\u003cspan\u003e seems to be particularly well suited to cultivation in southern California. It is larger than \u003c\/span\u003e\u003ci\u003eA. camperi\u003c\/i\u003e\u003cspan\u003e, with longer leaves featuring attractive lenticular spots and reddish, toothy margins. It also bears more slender, taller inflorescences characterized by its flowers spreading horizontally or slightly downwards. These are clavate as in \u003c\/span\u003e\u003ci\u003eA. camperi\u003c\/i\u003e\u003cspan\u003e. We received two plants from Thomas Cole, November 2, 2016. These were planted in the lower Desert Garden June, 2017. Both flowered in 2021 and the inflorescences were bagged to exclude uncontrolled pollination. The flowers were subsequently hand-pollinated from June to July, 2021. The seed was sown October 15, 2021. These are now large enough for this offering, HBG 145784, from controlled pollination of HBG 127286, T. Cole 13013, from seed collected in Ethiopia; Amhara District; 10 km N of Debre Sina, the place for which the species is named. According to Reynolds, this is in the heart of the dense population and near the type locality which Reynolds designated in his original description as 18 km NE of Debre Sina.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996534018,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-15g.jpg?v=1779133964"},{"product_id":"isi-2025-boswellia-sacra","title":"ISI 2025-16 Boswellia sacra","description":"\u003cp\u003e\u003cspan\u003eISI 2025-16 \u003cem\u003eBoswellia sacra \u003c\/em\u003eFlück\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe aromatic resin produced from this plant has been prized since antiquity and is the precious commodity known as frankincense, well known for its association with the Biblical account as among the treasures brought by the Magi to celebrate the birth of Christ. The plant is native to Somalia, Arabia, and Oman where it is loosely cultivated to this day for a variety of uses but the resin is primarily burned as incense in religious ceremonies. It also happens to be a small tree in the Burseraceae with interesting branching character, and peeling, parchment-like bark. It is well suited to cultivation in desert environments where frosts are limited. Gene Joseph of Plants for the Southwest has had success growing and propagating the plant from seed in his climate of Tucson, AZ, and has provided this crop for distribution through ISI. We offer HBG 145785, plants from seed sown in July, 2023.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996566786,"sku":null,"price":45.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-16d.jpg?v=1779133806"},{"product_id":"isi-2025-ceropegia-africana","title":"ISI 2025-17 Ceropegia africana","description":"\u003cp\u003e\u003cspan\u003eISI 2025-17 \u003cem\u003eCeropegia africana \u003c\/em\u003eR.Br.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe genus \u003c\/span\u003e\u003ci\u003eCeropegia\u003c\/i\u003e\u003cspan\u003e, in the strict sense, ranges from Africa through SE Asia to northern Australia. It was published by Linnaeus in 1753 for the Indian species \u003c\/span\u003e\u003ci\u003eC. candelabrum\u003c\/i\u003e\u003cspan\u003e but the African species \u003c\/span\u003e\u003ci\u003eC. africana\u003c\/i\u003e\u003cspan\u003e was not published until 1822. Well known in cultivation is \u003c\/span\u003e\u003ci\u003eC. africana\u003c\/i\u003e\u003cspan\u003e subsp. \u003c\/span\u003e\u003ci\u003ebarklyi\u003c\/i\u003e\u003cspan\u003e, the popular String of Hearts, or Rosary Vine. The subspecies \u003c\/span\u003e\u003ci\u003eafricana\u003c\/i\u003e\u003cspan\u003e, in contrast, has leaves with linear, fleshy, nearly terete leaf blades. It also produces tuberous swellings at the nodes that can eventually become small, spherical, potato-like structures to 2\" or more in diameter. These have been recommended for use as grafting stock for difficult-to-maintain stapeliads but we have had limited success with this technique. It is also recommended that tubers should be rooted on their sides so that grafts can be made on top while leaving some of the \u003c\/span\u003e\u003ci\u003eCeropegia\u003c\/i\u003e\u003cspan\u003e vines to grow out the side to sustain the stock and scion. The floriferous vines, with small but exotic-looking flowers, can be grown up a trellis or allowed to sprawl from a hanging basket. We offer rooted tubers of HBG 138903, originally collected in September, 1998, by Derek Tribble as tubers growing in deep shade in leaf litter, 10km S of Robertson, W. Cape, S. Africa.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996599554,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-17.jpg?v=1779133667"},{"product_id":"isi-2025-cotyledon-pendens","title":"ISI 2025-18 Cotyledon pendens","description":"\u003cp\u003e\u003cspan\u003eIn December, 2023, I came across this charming plant in a local nursery. It made a delightful hanging basket so I bought it for the Huntington and set about researching the name. It turns out that it was described in \u003c\/span\u003e\u003ci\u003eAloe\u003c\/i\u003e\u003cspan\u003e 40:2:2003 by our friend and colleague, Ernst van Jaarsveld. In his explorations 20 years earlier for cliff-dwelling succulents, he explored the Mbashe River of the Eastern Cape Province of South Africa. One of his finds, first spotted on the cliffs using binoculars, was this species with compact, pillow-like grayish leaves with red distal margins and comparatively large, pendent, red, bell-shaped flowers. A few pieces were dislodged with some well-tossed stones. These grew and flowered at Kirstenbosch in 2002. It is known only from the type locality, cliffs along the Mbashe River, Transkei, Eastern Cape, South Africa. HBG 143997.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996632322,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-18c.jpg?v=1779133593"},{"product_id":"isi-2025-dioscorea-hemicrypta","title":"ISI 2025-19 Dioscorea hemicrypta","description":"\u003cp\u003e\u003cspan\u003eThe genus \u003c\/span\u003e\u003ci\u003eDioscorea\u003c\/i\u003e\u003cspan\u003e includes over 600 species from around the world. Only a handful of these are succulent caudiciforms and are primarly South African with the exception of \u003c\/span\u003e\u003ci\u003eD. Mexicana\u003c\/i\u003e\u003cspan\u003e, which is superficially similar to \u003c\/span\u003e\u003ci\u003eD. elephantipes\u003c\/i\u003e\u003cspan\u003e but with a flatter, tortoise-shell-like caudex. It may at first come as a surprise that the Dioscoreaceae is a monocot family, but their usually broad, cordate leaves exhibit the parallel venation characteristic of monocots. Furthermore, the small flowers have 6 tepals in two series, and the fruits are 3-angled. Propagation is complicated by the fact that plants are unisexual, so one often needs to grow several to be assured of having a mated pair. We had a small crop of seedlings of \u003c\/span\u003e\u003ci\u003eD. hemicrypta\u003c\/i\u003e\u003cspan\u003e that we bedded out at the base of a fence serving as a trellis for the climbing vines. It was easily distinguished from other \u003c\/span\u003e\u003ci\u003eDioscorea\u003c\/i\u003e\u003cspan\u003e species planted nearby by its smaller, mature leaves which are glaucous and ovate, the size and silhouette of an olive. Juvenile leaves of seedlings, however, are more typical of the genus, bright green and cordate. Corky caudexes develop at the base. These are described by Rowley and Eggli in their treatment in the \u003c\/span\u003e\u003ci\u003eIllustrated Handbook of Succulent Plants, Vol. 2, Second Edition, 2020\u003c\/i\u003e\u003cspan\u003e, as half-buried, “the underground part amorphously lobed like molten lava, above ground part with thick corky irregular ridges and plates.” We have found that caudexes of young plants are smooth as they begin to swell above ground but eventually develop impressive, tuberculate caudexes much like \u003c\/span\u003e\u003ci\u003eD. elephantipes\u003c\/i\u003e\u003cspan\u003e but of a darker, grayish color. We offer second generation seedlings, HBG 145786, derived originally from seed (HBG 122819) collected by Gerard Marx in S. Africa; W. Cape; 5 km S of Volmoed.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217996665090,"sku":null,"price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-19.jpg?v=1779133328"},{"product_id":"isi-2025-echeveria-madiba","title":"ISI 2025-20 Echeveria 'Madiba'","description":"\u003cp\u003e\u003cspan\u003eThis remarkable hybrid came to our attention only recently. It has proven to be a clean grower, easily propagated from leaves but matures slowly into a blemish free rosette to 6\" across. What is remarkable is the firmness of the leaves, more like the tubercles of an \u003c\/span\u003e\u003ci\u003eAriocarpus\u003c\/i\u003e\u003cspan\u003e than the usually soft-fleshy echeverias. We acquired the plant from a local vendor under the name ‘Silver Ruffles’, coined by another grower who thought it was too good not to have a cultivar name. This was in reference to the opalescent coloring and the leaf margins that become more undulate in mature plants. We were able to trace the source of the plant back to one of the largest wholesale nurseries in Vista, CA, Western Cactus Growers. According to Thomas Britsch, President of Western Cactus, they acquired it from a distributor in Kenya as \u003c\/span\u003e\u003ci\u003eEcheveria\u003c\/i\u003e\u003cspan\u003e 'Madiba'. The cultivar name is the Xhosa clan to which Nelson Mandela belonged and was also used as his nickname. The cultivar name was chosen in his honor, a fitting name reflecting the plants endurance and dignified bearing. \u003c\/span\u003e\u003ci\u003eE.\u003c\/i\u003e\u003cspan\u003e ‘Madiba’ is a chance hybrid that originated in the nursery of Paco Serrano in Spain. It was found among seedlings of \u003c\/span\u003e\u003ci\u003eE. lilacina\u003c\/i\u003e\u003cspan\u003e, but it is uncertain whether that is the seed parent. The pollen parent is also a matter of conjecture, but the epidermal character and the plants hardiness suggest \u003c\/span\u003e\u003ci\u003eE. agavoides\u003c\/i\u003e\u003cspan\u003e. We offer rooted plants of HBG 142591.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217998336258,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-20b.jpg?v=1779133178"},{"product_id":"isi-2025-euphorbia-caducifolia","title":"ISI 2025-21 Euphorbia caducifolia","description":"\u003cp\u003eISI 2025-21 \u003cem\u003eEuphorbia caducifolia \u003c\/em\u003eHaines\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis spinescent shrub is widespread throughout India and Pakistan where it often creates natural barriers or is planted as a hedge. It forms a shrub to 3 m with stout, cylindrical, terminal joints about 5 cm (1\") diameter. These are armed with loose spirals of short, stout pairs of stipular spines that subtend prominent, circular, tan leaf scars in the midst of the dark thorn shields that age to tan. These contrast with the green epidermis, as do the often reddish cyathia that are produced in spring. Our plants were grown from seed in 2009, then further propagated vegetatively. We offer rooted cuttings of HBG 122956, from seed collected in Andra Pradesh, India.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46217999352066,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-21b.jpg?v=1779133131"},{"product_id":"isi-2025-euphorbia-granticola","title":"ISI 2025-22 Euphorbia granticola","description":"\u003cp\u003e\u003cspan\u003eThis species is native to Mozambique where it grows on exposed, granitic slopes. It forms shrubs to 2 m with ascending branches emerging from a stout trunk to 12 cm diameter that is almost caudiciform. However, as with similar species, rooted cuttings of lateral branches may not thicken to form a trunk in the same way as seed-grown plants. The branches are bright green with contiguous, whitish thorn shields on the ribs. We offer rooted cuts of HBG 106787, four plants originally grown from seed by \u003c\/span\u003e\u003ci\u003eEuphorbia\u003c\/i\u003e\u003cspan\u003e enthusiast Seymour Linden, perhaps from seed collected by Dave Richards, the Zimbabwean collector who was a source of many interesting euphorbias Seymour introduced into cultivation. Both are long passed but live on in our collections. The four clones we’ve propagated show some variation in the character of the leaves that line the ribs of the new growth. Clones 1 and 2 have elliptical, acute leaves over an inch long. Clone 3 has shorter leaves curved downward, like long fingernails, while Clone 4 has straight leaves like Clones 1 and 2 but about half as long.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218000367874,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-22.jpg?v=1779133013"},{"product_id":"isi-2025-euphorbia-rowlandii","title":"ISI 2025-23 Euphorbia rowlandii","description":"\u003cp\u003e\u003cspan\u003eThis elegant euphorbia has been in cultivation since shortly after its description by Dyer in \u003c\/span\u003e\u003ci\u003eBothalia\u003c\/i\u003e\u003cspan\u003e 7(1): 28 – 29 (1958). It has been mostly grown by \u003c\/span\u003e\u003ci\u003eEuphorbia\u003c\/i\u003e\u003cspan\u003e specialists and Botanical Gardens but is deserving of wider distribution. Mature plants in habitat are low shrubs 1 to 2 m tall, branching primarily from the base to produce a mass of ascending, jointed branches. The joints are thickest where they initiate and gradually taper to the next joint. This and the finely speckled epidermis make even a rooted cutting an attractive specimen. Furthermore, the 5 to 6 ribs are lined with continuous pale thorn shields bearing paired spines every centimeter or so, and bright yellow cyathia in the spring. We offer rooted cuttings of HBG 45128, a plant received from Grigsby’s Cactus Garden, February, 1981. It is known only from northern Limpopo Province, South Africa, and perhaps adjacent Zimbabwe. Much of its range is contained within Kruger National Park. The first recorded specimen of the species was made in 1949 by Dr. L. E. Codd. Flowering and fruiting material was subsequently provided to Dyer by Lt. Col. Rowland Jones, then in charge of the northern sector of Kruger National Park, after whom the species was named.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218001383682,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-23b.jpg?v=1779132931"},{"product_id":"isi-2025-euphorbia-serendipitia","title":"ISI 2025-24 Euphorbia serendipita","description":"\u003cp\u003e\u003cspan\u003eISI 2025-24 \u003cem\u003eEuphorbia serendipita \u003c\/em\u003eL.E.Newton\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis species was found serendipitously (hence the name) by Len Newton, June 5,1988, while returning to Nairobi from an outing to the Rift Valley. As it was late in the day, there was only time for a hasty collection of a few cuttings. One of these rooted and grew in Len’s Nairobi garden. Susan Carter saw it growing there in 1990 and suggested that it was probably an undescribed species. Len returned to the locality a couple of months later and sufficient study was completed to describe the species in the \u003c\/span\u003e\u003ci\u003eCactus and Succulent Journal\u003c\/i\u003e\u003cspan\u003e 65(3):111-112 (1993). We offer rooted cuttings of HBG 100904, a plant imported by Seymour Linden in June, 1994, with the following data: Ernst Specks 2366, collected at the type locality, in the Emart Olkimpai Hills near Nairobi, 8 km E of Elangata Waus, 1470 m. The slender stems tend to grow tall and become top heavy. By topping them, branching can be induced to create little miniature trees with a classic saguaro-like silhouette.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218001416450,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-24c.jpg?v=1779132796"},{"product_id":"isi-2025-gasteria-batesiana","title":"ISI 2025-25 Gasteria batesiana","description":"\u003cp\u003eISI 2025-25\u003ci\u003e Gasteria batesiana \u003c\/i\u003eG.D.Rowley\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eGasteria batesiana\u003c\/i\u003e\u003cspan\u003e is arguably the most popular member of this genus. Its formal description by Gordon Rowley was not until 1955, but without information about its origin. According to the British CSS webpage about this plant, the epithet honors John T. Bates (1884-1966), a trolley bus conductor in London and an avid collector of South African succulents. The clonotype is now thought to have been collected by Frank Frith of the South African Railways in 1924 and reached Europe some years later. It has become the nearly ubiquitous representative of this \u003c\/span\u003e\u003ci\u003eAloe\u003c\/i\u003e\u003cspan\u003e-allied group in collections and general horticulture as a container succulent tolerant of low light and neglect. But a well grown specimen in brighter light can truly be a thing of beauty when it blushes reddish and develops especially rough and rigid leaves. The affinity of \u003c\/span\u003e\u003ci\u003eGasteria\u003c\/i\u003e\u003cspan\u003e to \u003c\/span\u003e\u003ci\u003eAloe\u003c\/i\u003e\u003cspan\u003e is confirmed by many intergeneric hybrids, placed in the nothogenus x\u003c\/span\u003e\u003ci\u003eGasteraloe\u003c\/i\u003e\u003cspan\u003e, but these are a dead end to further hybridization, as they are typically sterile. The most commonly cultivated form of \u003c\/span\u003e\u003ci\u003eG. batesiana\u003c\/i\u003e\u003cspan\u003e happens to be the one distributed as ISI 460 in 1965, but again without habitat information. It appears identical to the clonotype illustrated in Rowley’s description. This stands out for its tapering leaves with beautiful patterning of smaller white surface tubercles with larger dark green ones matching the ground color of the leaf. Other forms have since been introduced with more parallel sided leaves and varying patterning and color, some blushed red to purple. Here we offer several sibling forms with varying degrees of these features. Divisions of HBG 107025, Clones 1 through 8, ex Sheilam Cactus Farm, near Robertson, W. Cape, S. Africa, imported in 2002. These were grown from seed collected at Barberton, Mpumalanga, S. Africa.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002465026,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-25.jpg?v=1779132712"},{"product_id":"isi-2025-haworthia-maraisii","title":"ISI 2025-26 Haworthia maraisii","description":"\u003cp\u003e\u003cspan\u003eISI 2025-26 \u003cem\u003eHaworthia maraisii\u003c\/em\u003e Poelln.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSometimes treated as a variety of \u003c\/span\u003e\u003ci\u003eH. mirabilis\u003c\/i\u003e\u003cspan\u003e, this distinctive entity is here treated as the species pending resolution of its rather confused taxonomy and resulting nomenclature. It is characterized by its miniature rosettes of dark, blue-green, retuse leaves with a scabrous surface. The rosettes are particularly dwarfed in the form offered here, only 2 cm in diameter and slowly offsetting to form a clump. We offer divisions of HBG 120289, purchased at the Karoo Botanical Garden (KBG 148\/2000), Worcester, S. Africa, in 2002. The clone was originally collected by Dr. V. B. Reddi (821) without locality data, but the species is widespread in the Robertson District, W. Cape, S. Africa.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002497794,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-26.jpg?v=1779132634"},{"product_id":"isi-2025-haworthia-retusa","title":"ISI 2025-27 Haworthia retusa 'Owen'","description":"\u003cp\u003eISI 2025-27\u003ci\u003e Haworthia retusa \u003c\/i\u003e'Owen' S.Uheyara\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003eHaworthia retusa\u003c\/i\u003e\u003cspan\u003e is a favorite for its broadly retuse, windowed leaves, and vigorous, clean growth. This variegated selection is consistent with that characterization despite its pallor that makes one wonder how it has enough chlorophyll to perform as well as it does. We received the plant in 2010 from nurseryman Bill Baker who acquired it from Hawaiian nurseryman Stefan Uyehara. Stefan named the plant in honor of his brother, who first spotted this sport in Stefan’s nursery about 40 years ago, but it was never introduced. We are pleased to offer another of Stefan’s excellent selections. See \u003c\/span\u003e\u003ci\u003eCrassula capitella\u003c\/i\u003e\u003cspan\u003e subsp. \u003c\/span\u003e\u003ci\u003ethyrsiflora\u003c\/i\u003e\u003cspan\u003e ‘Tsurue Scarlet Coral’, \u003c\/span\u003e\u003ca title=\"Crassula capitella subsp. thyrsiflora\" href=\"https:\/\/media.huntington.org\/ISI\/ISI2015\/2015-21.html\"\u003eISI 2015-21\u003c\/a\u003e\u003cspan\u003e. We offer divisions of HBG 134398.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002563330,"sku":null,"price":17.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-27.jpg?v=1779132553"},{"product_id":"isi-2025-lachenalia-pusilla","title":"ISI 2025-28 Lachenalia pusilla","description":"\u003cp\u003e\u003cspan\u003eISI 2025-28 \u003cem\u003eLachenalia pusilla \u003c\/em\u003eJacq.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis genus of South African bulbs is not usually considered to be succulent. Ernst van Jaarsveld lists only four “weakly succulent” species in his treatment for the \u003c\/span\u003e\u003ci\u003eIllustrated Handbook of Succulents, Monocotyledons, Vol. 2, Second Edition\u003c\/i\u003e\u003cspan\u003e, though Graham Duncan lists 133 species in his 2012 monograph, \u003c\/span\u003e\u003ci\u003eThe Genus Lachenalia\u003c\/i\u003e\u003cspan\u003e. Nevertheless, these plants often grow in association with succulents and are compatible companions, especially for those from the winter-rainfall areas of South Africa and Namibia. The genus is named in honor of Swiss botanist Werner de Lachenal (1736 – 1800). \u003c\/span\u003e\u003ci\u003eLachenalia pusilla\u003c\/i\u003e\u003cspan\u003e is named for its small stature. It forms a rosette of 3 – 8 (12) leaves that lie flat on the ground. These are elliptical, 20 – 55mm long by 5 – 20 mm wide, dark or glaucous green and spotted with purple. Flowers are white and in a compact, shaving-brush-like raceme nestled in the center of the rosette. The sweet, spicy scent of the flowers by day and the brush of white stamens attracts bee pollinators while the yeasty aroma of the flowers at night suggests rodent pollination as well. Inflorescences detach when dry and are carried by the wind like miniature tumbleweeds that disperse the seed. Seeds are more locally distributed by ants. The species is therefore widespread from near Cape Agulhas (the southernmost point of the African continent) north to the Clanwilliam area of the Western Cape. We offer HBG 137465, plants from seed sown September 26, 2016. The seed was produced by Steven Hammer on a plant originally collected by John Lavranos (29738) in 1995: S. Africa; W. Cape; 18 km N of Piekenierskloof on the road to Citrusdal.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002596098,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-28b.jpg?v=1779132497"},{"product_id":"isi-2025-xmangave-tracy-paz","title":"ISI 2025-29 xMangave 'Tracy Paz'","description":"\u003cp\u003e\u003cspan\u003eISI 2025-29 x\u003cem\u003eMangave\u003c\/em\u003e 'Tracy Paz' K. Zimmerman\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBesides being known for her popular dwarf aloe hybrids, Karen Zimmerman sometimes dabbles with hybridization of other genera. This is the first mangave hybrid she has introduced. x\u003c\/span\u003e\u003ci\u003eMangave\u003c\/i\u003e\u003cspan\u003e ‘Tracy Paz’ is named for one of Karen’s dearest friends, who is an accomplished artist and loves agaves. Karen crossed one of her favorite agave species, \u003c\/span\u003e\u003ci\u003eA. parrasana\u003c\/i\u003e\u003cspan\u003e, with \u003c\/span\u003e\u003ci\u003eManfreda maculosa\u003c\/i\u003e\u003cspan\u003e, which not only has beautifully spotted foliage, but also a lovely flower color progression: white buds opening to pink, and aging to burgundy. We planted 72 seedlings in the narrow bed along the shade house in our nursery for evaluation. There was quite a range to choose from, but Karen was hoping for a hybrid that looked most like \u003c\/span\u003e\u003ci\u003eA. parrasana\u003c\/i\u003e\u003cspan\u003e but with purple spots. All of them have spots, but Clone 50 stood out overall, and while not a \u003c\/span\u003e\u003ci\u003eparrasana\u003c\/i\u003e\u003cspan\u003e look-alike, it forms a lovely rosette to about 3 ft across with waxy blue-white leaves aging to grey green with lots of purple-red spots and splashes. The inflorescence was a standout as well, being a more compact panicle, about 6 ft tall, with a dense cloud of yellow flowers. We offer rooted plants from tissue culture of HBG 145787.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002628866,"sku":null,"price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-29.jpg?v=1779132401"},{"product_id":"isi-2025-sedum-jurgensenii","title":"ISI 2025-30 Sedum jurgensenii","description":"\u003cp\u003e\u003cspan\u003eISI 2025-30 \u003cem\u003eSedum jurgensenii\u003c\/em\u003e (Hemsl.) Moran\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis species was originally described as \u003c\/span\u003e\u003ci\u003eCotyledon jurgensenii\u003c\/i\u003e\u003cspan\u003e by Hemsley in 1878 but only transferred to \u003c\/span\u003e\u003ci\u003eSedum\u003c\/i\u003e\u003cspan\u003e by Reid Moran in \u003c\/span\u003e\u003ci\u003eHaseltonia\u003c\/i\u003e\u003cspan\u003e 4 (1996). The species is described as variously hispidulous, that is, covered with short, stiff, bristly hairs. It possesses another distinction among the genus Sedum in having n=23, the same number of chromosomes as in the human genome. The foliage is also strongly dimorphic. During winter dormancy, the plant forms compact, spindle-shaped branchlets with tightly appressed, imbricated, ascending leaves. These branchlets can become dislodged and serve as propagules which spill around the parent plant to form colonies. In spring, these take root and elongate into a very different, rather lax succulent. The flowers are white, with five recurved petals and are produced in the fall on elongated summer shoots with spreading leaves. We received it from Myron Kimnach with his collection number 3402. Unfortunately, we never received his field notes with the sequence including this collection. Therefore, we do not have the data that accompanies this number. Perhaps Myron shared this collection with other students of the Crassulaceae and the data is on record somewhere and will find its way to us. In the meantime, we offer rooted plants of HBG 109487, from Myron Kimnach (MK 3402) in 2012. The species is widespread in central Mexico, at 1100-2900m.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002661634,"sku":null,"price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-30.jpg?v=1779132359"},{"product_id":"isi-2025-sulcolluma-shadhbana","title":"ISI 2025-31 Sulcolluma shadhbana","description":"\u003cp\u003e\u003cspan\u003eISI 2025-31 \u003cem\u003eSulcolluma shadhbana \u003c\/em\u003e(Lavranos) Plowes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSucculents in the milkweed family (formerly the Asclepiadaceae, now combined with the Apocynaceae) have wonderfully diverse flowers despite their apparent, five-petaled simplicity. This floral diversity is their primary appeal as collectable ornamentals. This is despite their often-challenging cultural requirements. It is also responsible for considerable attention from taxonomists through history and the resultant controversies regarding classification and naming. For small plants often found creeping in the shade of other vegetation, and their propensity to have fetid-smelling flowers to attract fly pollinators, this level of attention may seem disproportionate. One is reminded of the famous quote by British biologist J. B. S. Haldane (1892-1964) regarding the diversity of beetle species; The Creator “must have an inordinate fondness for beetles.” One could paraphrase that ‘taxonomists have an inordinate fondness for stapeliads’ based on the taxonomic controversies they have engendered. This offering provides a case in point. It was first described by Lavranos as a \u003c\/span\u003e\u003ci\u003eCaralluma\u003c\/i\u003e\u003cspan\u003e (Fl. Pl. Africa 44(3-4): t. 1743 (1977). Nearly a couple of decades later, in his attempt to bring some sense to this very diverse genus, Darrel Plowes split the genus into 16, placing this species in \u003c\/span\u003e\u003ci\u003eSulcolluma\u003c\/i\u003e\u003cspan\u003e, distinguished by tubercles with a flattened, epaulet-like upper surface, often grooved (i.e. with a \u003c\/span\u003e\u003ci\u003esulcus\u003c\/i\u003e\u003cspan\u003e) and tipped with tiny, fugacious leaves. This recognized a useful diagnostic characteristic for the new genus. In a dramatic swing in the lumping direction a dozen years later, Peter Bruyns transferred it, along with all the other stapeliad genera (!), into the megagenus \u003c\/span\u003e\u003ci\u003eCeropegia\u003c\/i\u003e\u003cspan\u003e. Current treatments have come down somewhere in the middle. The 2002 treatment of the family in the Asclepiadaceae volume of the \u003c\/span\u003e\u003ci\u003eIllustrated Handbook of Succulent Plants\u003c\/i\u003e\u003cspan\u003e, considers this taxon to be a synonym of \u003c\/span\u003e\u003ci\u003eCaralluma hexagona\u003c\/i\u003e\u003cspan\u003e, albeit with the comment that this is “An extremely variable species, which can possibly be split up into several taxa” [again!]. Meanwhile, \u003c\/span\u003e\u003ci\u003ePlants of the World Online\u003c\/i\u003e\u003cspan\u003e chooses to place it in another Plowes genus, \u003c\/span\u003e\u003ci\u003eMonolluma\u003c\/i\u003e\u003cspan\u003e as \u003c\/span\u003e\u003ci\u003eMonolluma hexagona\u003c\/i\u003e\u003cspan\u003e. We are choosing to offer it as \u003c\/span\u003e\u003ci\u003eSulcolluma\u003c\/i\u003e\u003cspan\u003e in honor of the ease of recognition of its stem morphology, and the original distinction by Lavranos. We offer rooted cuts of HBG 48485, a plant received December 5, 2014 from Myron Kimnach (2001.17). This has proven to be an unusually durable stapeliad, tolerating standard succulent care among other succulents and cacti in our greenhouse where temperatures range into the triple digits in summer and down to the 40s°F in winter. This is J. Lavranos \u0026amp; S. Collenette 20440A collected April, 1982: Saudi Arabia; Jabal Fayfa, 71 km NE of Jizan.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Huntington Plant Sales","offers":[{"title":"Default Title","offer_id":46218002694402,"sku":null,"price":15.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/files\/isi2025-31.jpg?v=1779132247"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/8963\/6866\/collections\/isi2025-06.jpg?v=1767125042","url":"https:\/\/plantsales.huntington.org\/collections\/2025-isi-catalog.oembed","provider":"The Huntington Plant Sales","version":"1.0","type":"link"}