ISI 2026-29. Sedum allantoides Rose.
This Mexican species was discovered by C. A. Purpus in 1907 on the hills near San Luis Atolotitlán, in southern Puebla and was described by J. N. Rose in 1909. As he was impressed by its thick, succulent, cylindrical leaves he called it S. allantoides (Greek allanto= sausage). The flowers of the new species were greenish white, sometimes tinged with pink. However, the occurrence of S. allantoides is not limited to San Luis Atolotitlán. Its distribution area includes southern Puebla and northern Oaxaca, and subsequent findings show that this is a rather variable species. Leaves can be sausage-like or more flattened and rounded and flowers can have red spots on the inside of white petals, thus reminding one of the flowers of the genus Graptopetalum. Such a form was collected by Dudley Gold in 1954 and described by Matuda as Graptopetalum goldii. He obviously overlooked the fact that the plant differed in crucial characteristics from species of the genus Graptopetalum (the indication of the type locality as "near Ixmiquilpan, Hidalgo" is also in error). It was recombined in the genus Sedum by V. V. Byalt in 2012, and for the sake of completeness, Sedum Society Newsletter 3, 1987 contains a description of "Sedum allantoides form 'Goldii'". To treat it as a cultivar is hardly merited as this is not the only clone with this leaf morphology. The cylindrical leaf form has inspired the evocative, though gruesome, common name in Spanish of dedos muertos, meaning dead man's fingers. I have never seen such fingers and am happy to leave that to the imagination. Another species with similar flowers is Sedum alexanderi which has larger, flattened discoid leaves. Also native to Oaxaca, this probably doesn't merit specific status but could be included as a form or variety of Sedum allantoides. We offer rooted cuttings of HBG 48609, a diploid plant (n = 58) collected November 15, 1957, by Reid Moran at San Antonio Texcala, about 7 miles S of Tehuacán, Puebla, at about 1850 m altitude.
Photo © 2026 by Jack Dawes.
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