Poaceae
Drepanostachyum

Drepanostachyum fractiflexum (T.P.Yi) D.Z.Li

First published in Fl. Yunnanica 9: 145 (2003)
This species is accepted
The native range of this species is China (SW. Sichuan, N. Yunnan). It is a bamboo and grows primarily in the temperate biome.

Descriptions

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; entire to lacerate. Culm-sheath blade linear; reflexed; 2-5.5 cm long; 1.5-2 mm wide. Leaves 3-5 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; 5-13 cm long; 5-12 mm wide; chartaceous. Leaf-blade venation with 6-8 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]

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]

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