Convallariaceae

Ophiopogon rugosus N.Tanaka, Aver. & C.H.Nguyen

Bac Kan Province, Ba Be District, Ba Be National Park. Primary and old secondary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º27’26’’N 105º36’12’E at elev. of 600-800 m a.s.l. Terrestrial herb in shady rocky place. Locally common.

30 October 2023, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2384.

Flowered in culture on 14 July 2025, flowers pure white, anthers light yellow-greenish, L. Averyanov, T. Maisak, AL2384.