Convallariaceae

Aspidistra quadrangularis Aver.⁣

Quang Ninh Province, Van Don District, Minh Chau Commune, Bai Tu Long National Park, Ba Mun protection sector|, Ba Mun Island, around point 21º04’33’’N 107º35’28’’E. Secondary broad-leaved evergreen forest with bamboo on rocky sandstone slopes at elevation 10–50 m a.s.l.

Terrestrial and lithophytic rhizomatous herb on steep slopes of small shady rocky stream. Leaves to 0.6 m long, leaf blade linear, uniform grassy green. Fruit green globular, 5-7 mm in diameter. Locally very common.

21 May 2025, Cuong Huu Nguyen, Ha Van Dang, Ly Van Nguyen, Nam Van Duong, Tuan Thanh Tran, Hai Xuan Cao, L. Averyanov, T. Maisak, AL4426 (NHC219).