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 rocky stream. Leaves to 0.5 m long, leaf blade elliptic, uniform grassy green. Flower bud globular about 6 mm in diameter, dirty purple. Anthers dull yellow, stigma white. 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, AL4420 (NHC213).