Poaceae
Drepanostachyum

Drepanostachyum semiorbiculatum (T.P.Yi) Stapleton

First published in Novon 15: 600 (2005)
This species is accepted
The native range of this species is Tibet. It is a bamboo and grows primarily in the subtropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms 300-420 cm long; 6-13 mm diam.; woody. Culm-internodes thick-walled; 15-30 cm long; distally mealy. Lateral branches dendroid; ascending. Bud complement 1. Branch complement many; with subequal branches. Culm-sheaths 12-20 cm long; coriaceous; glabrous; without auricles; glabrous on shoulders. Culm-sheath ligule 1-4 mm high; ciliate. Culm-sheath blade linear; reflexed; 2-5.5 cm long; 1.5-2 mm wide. Leaves 2-5 per branch. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs lacking. Ligule a ciliolate membrane; 1 mm long; pubescent on abaxial surface. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.1 cm long. Leaf-blades lanceolate; 2-10 cm long; 4-5 mm wide; chartaceous. Leaf-blade venation with 4-6 secondary veins; with obscure cross veins. Leaf-blade surface glabrous.
Morphology Reproductive morphology Inflorescences
Flowering specimens unknown.
Distribution
Asia-temperate: China.
Reference
Bambuseae. Yi 2002.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora.
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0