biostudies-literatureAubriot XEuropean CommissionDepartment for Business, Energy and Industrial Strategy, UK GovernmentNational Science Foundation1-270https://www.ebi.ac.uk/biostudies/studies/S-EPMC9849010biostudies-literatureUnknown198The Leptostemonum Clade, or the "spiny solanums", is the most species-rich monophyletic clade of the large cosmopolitan genus <i>Solanum</i> (Solanaceae) and represents almost half the species diversity of the genus. Species diversity in the clade is highest in the Americas, but significant clusters of endemic taxa occur in the Eastern Hemisphere. We present here a taxonomic revision of the 51 species of spiny solanums occurring in tropical Asia (excluding the island of New Guinea, and the lowlands of Nepal and Bhutan). Three species are described as new: <i>Solanumkachinense</i> X.Aubriot & S.Knapp, <b>sp. nov.</b> from northern Myanmar, <i>S.peikuoense</i> S.S.Ying, <b>sp. nov.</b> from Taiwan, and <i>S.sulawesi</i> X.Aubriot & S.Knapp, <b>sp. nov.</b> from northern Sulawesi, Indonesia. PhytoKeysA revision of the "spiny solanums" of Tropical Asia (<i>Solanum</i>, the Leptostemonum Clade, Solanaceae).PMC9849010226506Aubriot XKnapp SfalseA revision of the "spiny solanums" of Tropical Asia (<i>Solanum</i>, the Leptostemonum Clade, Solanaceae).The Leptostemonum Clade, or the "spiny solanums", is the most species-rich monophyletic clade of the large cosmopolitan genus <i>Solanum</i> (Solanaceae) and represents almost half the species diversity of the genus. Species diversity in the clade is highest in the Americas, but significant clusters of endemic taxa occur in the Eastern Hemisphere. We present here a taxonomic revision of the 51 species of spiny solanums occurring in tropical Asia (excluding the island of New Guinea, and the lowlands of Nepal and Bhutan). Three species are described as new: <i>Solanumkachinense</i> X.Aubriot & S.Knapp, <b>sp. nov.</b> from northern Myanmar, <i>S.peikuoense</i> S.S.Ying, <b>sp. nov.</b> from Taiwan, and <i>S.sulawesi</i> X.Aubriot & S.Knapp, <b>sp. nov.</b> from northern Sulawesi, Indonesia. 2022-01-01T00:00:00Z20222026-05-28T11:51:47.431Z2025-04-07T03:20:56.102ZS-EPMC98490103676099110.3897/phytokeys.198.79514