Nguyen, K.S., Tanaka, N., Averyanov, L.V., Maisak, T.V., Nguyen, P.H. & Tran, D.B. (2021)

Two new species, Ophiopogon dolichocaulis and O. trigonantherus (Asparagaceae), from northern Vietnam

. Phytotaxa 523 (4): 291–298. https://doi.org/10.11646/phytotaxa.523.4.3