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

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

. Phytotaxa. 523, 4 (Oct. 2021), 291–298. DOI:https://doi.org/10.11646/phytotaxa.523.4.3.