Abstract
Ophiopogon longiscapus (Asparagaceae), a new species from southeastern Yunnan, China, is described and illustrated herein. It is morphologically similar to O. longifolius, but can be readily distinguished by its slender roots lacking fusiform tubers, thick and branched rhizome with densely crowded nodes, scape exceeding the leaves, racemose inflorescence occupying only one-quarter to one-third of the entire scape length, narrowly elliptic perianth lobes white adaxially and pinkish-purple abaxially, spreading flat at anthesis, and anthers 5.2–8.3 mm long, yellowish-green. Notes on its habitat, phenology, conservation status, and comparisons with allied species are also provided.
References
- Andrews, H.C. (1810) Botanists’ repository, for new, and rare plants 9. London. [https://www.biodiversitylibrary.org/page/34982307]
- APG IV (2016) An update of the angiosperm phylogeny group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society 181: 1–20. https://doi.org/10.1111/boj.12385
- Averyanov, L.V., Tanaka, N., Nguyen, K.S. & Nguyen, H.T. (2016) New species of Ophiopogon and Peliosanthes (Asparagaceae) from Laos and Vietnam. Taiwania 61: 201–217. https://doi.org/10.6165/tai.2016.61.201
- Baker, J.G. (1875) Revision of the genera and species of Asparagaceae. (Continued.). Journal of the Linnean Society of London, Botany 14 (80): 547–632. https://doi.org/10.1111/j.1095-8339.1875.tb00640.x
- Beentje, H. (2016) The Kew plant glossary, an illustrated dictionary of plant terms (Second edition, illus. by Williamson J.). Royal Botanic Gardens, Kew, Kew Publishing, 184 pp.
- Chase, M.W., Reveal, J.L. & Fay, M.F. (2009) A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae. Botanical Journal of the Linnean Society 161 (2): 132–136. https://doi.org/10.1111/j.1095-8339.2009.00999.x
- Chen, X.Q. & Tamura, M.N. (2000) Ophiopogon Ker Gawl. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China 24. Science Press, Beijing, Missouri Botanical Garden Press, St. Louis, pp. 252–261.
- Decaisne, J. (1867) Sur les Ophiopogon. Annales Générales d’Horticulture 17: 181–183. [http://www.biodiversitylibrary.org/page/27764869]
- Don, D. (1825) Prodromus florae Nepalensis: sive Enumeratio vegetabilium quae in itinere per Nepaliam proprie dictam et regiones conterminas, ann. 1802-1803. Detexit atque legit D. D. Franciscus Hamilton, (olim Buchanan) M.D. Accedunt plantae A. D. Wallich nuperius missae. J. Gale, London. https://doi.org/10.5962/bhl.title.86
- Feng, H.Z., Peng, C.X., Tan, K. & Lin, Q.W. (2025) Identity of Ophiopogon tonkinensis and O. ogisui, with a new species O. tiandengensis from Guangxi, China. Phytotaxa 700 (1): 45–59. https://doi.org/10.11646/phytotaxa.700.1.4
- Gan, X.J., Feng, H.Z., Chen, H.J., Zhong, P.S. & Fan, Q. (2024) Taxonomic studies on the genus Ophiopogon (Asparagaceae) I: —identity of O. albimarginatus and O. pseudotonkinensis, and a new species O. guangzhouensis from Guangdong, China. Phytotaxa 662 (2): 121–136. https://doi.org/10.11646/phytotaxa.662.2.1
- Hao, J.C., Feng, H.Z., Tan, K., Liu, L.A. & Lin, Q.W. (2025a) Ophiopogon ximengensis, a new species from Yunnan, Southern China. Phytotaxa 684 (2): 243–253. https://doi.org/10.11646/phytotaxa.684.2.7
- Hao, J.C., Feng, H.Z., Tan, K. & Lin, Q.W. (2025b) Ophiopogon malipoensis (Asparagaceae), a new species from Yunnan, Southern China. Phytotaxa 714 (3): 246–252. https://doi.org/10.11646/phytotaxa.714.3.5
- Herbert, W. (1837) Amaryllidaceae. James Ridgway and Sons, London, 428 pp. https://doi.org/10.5962/bhl.title.116651
- IUCN (2026) The IUCN Red List of Threatened Species. Version 2025.2. IUCN Red List Unit, Cambridge U.K. Available from: https://www.iucnredlist.org (accessed 9 April 2026)
- Jessop, J.P. (1979) Liliaceae–I. In: van Steenis, C.G.G.J. (Ed.) Flora Malesiana, series 1, Vol. 9. Sijthoff and Noordhoff, Alphen aan den Rijn, pp. 189–235.
- Ji, Y., Landis, J.B., Yang, J., Wang, S., Zhou, N., Luo, Y. & Liu, H. (2023) Phylogeny and evolution of Asparagaceae subfamily Nolinoideae: new insights from plastid phylogenomics. Annals of Botany 131 (2): 301–312. https://doi.org/10.1093/aob/mcac144
- Ker Gawler, J.B. (1807) Ophiopogon. Curtis’s Botanical Magazine 27: t. 1063. [http://www.biodiversitylibrary.org/page/472616]
- Kim, J.H., Kim, D.K., Forest, F., Fay, M.F. & Chase, M.W. (2010) Molecular phylogenetics of Ruscaceae sensu lato and related families (Asparagales) based on plastid and nuclear DNA sequences. Annals of Botany 106: 775–790. https://doi.org/10.1093/aob/mcq167
- Le, T.M.L., Ly, N.S., Pham, V.T., Nguyen, P.H., Tran, D.B., Dong, L. & Nguyen, S.K. (2023) Molecular phylogeny of Convallarioideae (Asparagaceae), with emphasis on Vietnamese species. Academia Journal of Biology 45 (4): 93–109. https://doi.org/10.15625/2615-9023/18765
- Lin, Q.W., Le, C.T., Yu, Z.Y., Sun, G.F. & Liu, B. (2021) Ophiopogon elatior, a new species of Asparagaceae from Yunnan, China. Phytotaxa 525 (1): 46–50. https://doi.org/10.11646/phytotaxa.525.1.5
- Loureiro, J.de (1790) Flora cochinchinensis: sistens plantas in regno Cochinchina nascentes. Quibus accedunt aliae observatae in Sinensi imperio, Africa Orientali, Indiaeque locis variis. Ulyssipone, Typis, et expensis academicis, 353 pp. https://doi.org/10.5962/bhl.title.560
- Pham, van T., Tanaka, N., Averyanov, L.V., Maisak, T.V., Tran, H.T., Nguyen, H.C. & Nguyen, K.S. (2023) Ophiopogon muongnhensis (Asparagaceae, Convallarioideae), a new species from northwest Vietnam. Phytotaxa 591 (2): 171–176. https://doi.org/10.11646/phytotaxa.591.2.9
- POWO (2026) Plants of the World Online. Royal Botanic Gardens, Kew, Richmond, UK. Available from: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331251-2 (accessed 20 April 2026)
- Tanaka, N. (1998) Taxonomic notes on Ophiopogon of South Asia I. The Journal of Japanese Botany 73: 301–313. https://doi.org/10.51033/jjapbot.73_6_9293
- Tanaka, N. (2001a) Taxonomic notes on Ophiopogon of South Asia X. The Journal of Japanese Botany 76 (1): 11–19. https://doi.org/10.51033/jjapbot.76_1_9478
- Tanaka, N. (2001b) Taxonomic notes on Ophiopogon (Convallariaceae) of East Asia (I). The Journal of Japanese Botany 76 (2): 59–76. https://doi.org/10.51033/jjapbot.76_2_949
- Tanaka, N. (2001c) Taxonomic notes on Ophiopogon (Convallariaceae) of East Asia (III). The Journal of Japanese Botany 76: 205–218. https://doi.org/10.51033/jjapbot.76_4_9520
- Tanaka, N., Truong, B.V., Averyanov, L.V. & Maisak, T.V. (2025a) Ophiopogon heterotepalus (Asparagaceae), a new species from north-western Vietnam. Phytotaxa 700 (2): 243–250. https://doi.org/10.11646/phytotaxa.700.2.7
- Tanaka, N., Averyanov, L.V., Nguyen, C.H., Maisak, T.V., Nguyen, D.T., Dai, H.V. & Chu, Q.N. (2025b) Ophiopogon rugosus (Asparagaceae), a new species from northeastern Vietnam. Phytotaxa 721 (2): 167–174. https://doi.org/10.11646/phytotaxa.721.2.4
- Wang, F.T., Tang, T., Chen, S.C., Chang, C.Y., Dai, L.K., Liang, S.Y., Tang, Y.C., Liou, L. & Lang, K.Y. (1978) Liliaceae (2). In: Wang, F.T. & Tang, T. (Eds.) Flora Reipublicae Popularis Sinicae 15. Science Press, Beijing, pp. 1–263.
- Wang, G.Y. & Yang, Y.P. (2015) Advances in the Study of the Systematics of Ophiopogoneae in Asparagaceae. Plant Diversity 37 (4): 365–375. [https://www.integrativebiology.ac.cn/pd/CN/10.7677/ynzwyj201514134]
- Xu, T., Qin, Y.H., Yu, S.X., Jiang, R.H. & Feng, H.Z. (2026) Ophiopogon wangii (Asparagaceae), a new species from Guangxi, Southern China. Phytotaxa 744 (3): 271–280. https://doi.org/10.11646/phytotaxa.744.3.7
- Yang, Y.P. & Li, H. (1990) Study on the taxonomic system of Ophiopogon. Acta Botanica Yunnanica 12 (Suppl. 3): 1–3.
