Sedum dasyphyllum subsp. glanduliferum: a new addition for the flora of northwestern Spain

Sedum dasyphyllum L. has a controversial infraspecific treatment, with three subspeciesdistinguished based on the abundance of glandular indumentum. Sedum dasyphyllum L. subsp. glanduliferum(Guss.) Nyman, characterized by the presence of abundant glandular hairs, was considered a subspecieswith a southern tendency, with very few and unclear records in the northwestern Iberian Peninsula. In thepresent study, 56 herbarium sheets from the LEB FCO and SANT herbaria were assigned to the taxa Sedumdasyphyllum L. and Sedum dasyphyllum L. subsp. dasyphyllum were analyzed. Of these, 45 were re-assignedto Sedum dasyphyllum L. subsp. glanduliferum (Guss.) Nyman, constituting the first records for this taxonin the provinces of León, Lugo, Oviedo, Orense, Palencia, and Santander. Moreover, five sheets were reassignedto Sedum dasyphyllum L. subsp. dasyphyllum, while another five retained their original assignment(Sedum dasyphyllum L. subsp. dasyphyllum). The populations are now identified as Sedum dasyphyllum L.subsp. glanduliferum (Guss.) Nyman do not appear to occupy more southern enclaves or southern slopes,although they are, on average, found at higher altitudes within the study area.Keywords: Glandular indument, LEB herbarium, northwestern Iberian Peninsula, preserved plants, provinceof León, Sedum dasyphyllum subsp. glanduliferum.