Herniaria alpina (Caryophyllaceae) in the Iberian Peninsula

Abstract

Herniaria alpina Chaix is a southern European orophyte distributed in the Alps, Apennines and the Pyrenees. In the Pyrenees it is considered a rare species because it is only known from few locations of the northern side (France) and there are no citations in the southern side (Spain). In summer 2018, a population was found in the Catalan Pyrenees (northeastern Iberian Peninsula). A complete description is presented and an identification key is included as an amendment for its taxonomic treatment in Flora iberica . Its current Pyrenean distribution, habitat and phenology are also reported. The conservation status is evaluated under the IUCN regional and national levels.