On the taxonomy and infraspecific classification of Abelmoschus angulosus Wall. ex Wt. & Arn. (Malvaceae)

Abstract

Abelmoschus angulosus Wall. ex Wight & Arn. is currently treated as a highly polymorphic taxon, especially with respect to indumentum, leaf size and shape, and flower colour. Thwaites (1858) recognised two varieties in this species and was followed by Masters (1874). None of the recent authors have made attempts for its infraspecific classification. The present study shows the existence of three distinct varieties. The white-flowered one is the typical form of the species (var. angulosus). while. var. glandiflorus (yellow-flowered) and var. purpureus Thw. (pink-flowered) are reinstated here.