Taxonomy and Lectotypification of Isodon rivularis (Lamiaceae), a Little-Known, Endangered Herb of Southern India

Abstract

Isodon rivularis (Wight ex Hook.f.) H.Hara is endemic to six districts of the southern Western Ghats, India. For this species, extended taxonomic description, habitat, phenology and the first available photographs of living plants is provided here along with the lectotypification.