A Troglodytic Succulent: Sedum frasrans

摘要

Almost all native succulents of the Alpes Maritime are commonplace and widespread but one in particular is extremely localised, very difficult to locate, and has an exacting; habitat: Sedum fragrans. Sedum fragrans was not described until 1983 by Henk't Hart, having previously been confused with the (mostly Italian) annual/biennial S. ahinefolium Allioni. Sedum fragrans is stoloniferous, producing offsets, and is therefore perennial. Although these two species are clearly closely related, they are innature disjunct and cannot produce viable seed when artificially pollinated. Parent S. fragrans plants usually flower themselves to death leaving independent rosettes and copious seed.