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Issue: Vol. 721 No. 2: 7 Oct. 2025
Type: Article
Published: 2025-10-07
DOI: 10.11646/phytotaxa.721.2.4
Page range: 167-174
Abstract views: 204
PDF downloaded: 10

Ophiopogon rugosus (Asparagaceae), a new species from northeastern Vietnam

Hachioji-shi, Tokyo, 192-0352, Japan
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197022, St. Petersburg, Russia
Vietnam National University of Forestry, Xuan Mai, Ha Noi, Vietnam
Komarov Botanical Institute of the Russian Academy of Sciences, Prof. Popov Street 2, 197022, St. Petersburg, Russia
Bac Giang Agriculture and Forestry University, Viet Yen, Bac Ninh, Vietnam
Vietnamese Academy of Forest Sciences, 46 Ton Duc Thang Street, Dong Ngac, Hanoi, Vietnam
The Viet Nam CITES Management Authority, Hanoi, Vietnam
Convallarioideae flora of Indochina Liriopeae plant diversity plant distribution plant taxonomy Monocots

Abstract

Ophiopogon rugosus, a new species from Thai Nguyen Province (formerly Bac Kan Province), NE Vietnam, is described and illustrated. It is distinguishable from all other members of the genus by its elliptic leaf blades with many small wrinckles arrayed in a checkered pattern on the adaxial surface. Somewhat resembling O. xylorrhizus in its habit and rigid roots, the new species clearly differs mainly by the smaller, adaxially wrinkled, abaxially white-glaucous (vs. pale green) leaf blades with fewer longitudinal parallel veins. Besides morphological and ecological data, we provide notes on its relationships to several similar species.

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How to Cite

Tanaka, N., Averyanov, L.V., Nguyen, C.H., Maisak, T.V., Nguyen, D.T., Dai, H.V. & Chu, Q.N. (2025) Ophiopogon rugosus (Asparagaceae), a new species from northeastern Vietnam. Phytotaxa 721 (2): 167–174. https://doi.org/10.11646/phytotaxa.721.2.4