Generic criteria and an infrageneric system for Hedysarum and related genera (Papilionoideae‐Leguminosae)

New generic delimitations for Corethrodendron, Hedysarum, Sulla and Taverniera are proposed together with new infrageneric systems for Hedysarum , with special reference to morphological evidence. Hedysarum sect. Spinosissima is treated as a distinct genus Sulla , and H. sect. Hedysarum is newly circumscribed on the basis of its conserved type, H. alpinum . Hedysarum sections Crinifera, Multicaulia and Subacaulia are very similar to each other and are merged into an enlarged H. section Multicaulia . Hedysarum sect. Fruticosa is transferred to the genus Corethrodendron . On the other hand, Stracheya is reduced to a section of the genus Hedysarum . A key to the genera and the infrageneric taxa, their nomenclature, synonymy and short descriptions are provided.