Solanum scabrum, IN

Olet, Eunice Apio, Heun, Manfred & Lye, Kåre A., 2006, A New Subspecies of Solanum scabrum Miller Found in Uganda, Novon: A Journal for Botanical Nomenclature 16 (4), pp. 508-511 : 509

KEY TO THE SUBSPECIES OF SOLANUM SCABRUM IN AFRICA

1a. Stems angled, winged, ridge teeth prominent; leaf apices obtuse to acute; inflorescence often branching, peduncle at right angles with branch, not ascending, flowers purple in Ugandan collections, white in the gene bank accessions, anthers brown, purplish brown, or yellow; mature fruits large, 10– 15(16–17) mm broad, fruiting pedicel erect, fruit persistent........... S. scabrum subsp. scabrum

1b. Stems terete, wings and ridge teeth absent; leaf apices acuminate to almost aristate; inflorescence without branching, peduncle at less than 90 ° with branch and ascending, flowers white, anthers yellow; mature fruits smaller, 8–10 mm broad, fruiting pedicel reflexed, fruit persistent or deciduous.................. S. scabrum subsp. laevis