Wu Lei, Averyanov Leonid V, Nguyen Khang Sinh, Maisak Tatiana V, Hu Yan-Hua
College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China Central South University of Forestry and Technology Changsha China.
Komarov Botanical Inst., Russian Academy of Sciences, Prof. Popov St. 2, RU-197376 St. Petersburg, Russia Komarov Botanical Inst., Russian Academy of Sciences St. Petersburg Russia.
PhytoKeys. 2020 Nov 13;166:105-115. doi: 10.3897/phytokeys.166.55731. eCollection 2020.
, a new species of the tribe Argostemmateae from Son La province, northwestern Vietnam, is described and illustrated. Morphologically it allies to , and by sharing a similar habit, large stipules and similar corolla shape, but it differs by its anisophyllous leaves, 1-flowered inflorescences, homostylous flowers and tubular-campanulate corollas.