Poaceae
Indosasa

Indosasa angustata McClure

First published in J. Arnold Arbor. 23: 93 (1942)
This species is accepted
The native range of this species is China (Guangxi) to Vietnam. It is a bamboo and grows primarily in the subtropical biome.

Descriptions

Morphology General Habit
Perennial. Rhizomes elongated; leptomorph. Culms erect; 800 cm long; 42 mm diam.; woody. Culm-internodes terete; thick-walled; distally glabrous. Culm-nodes with distinct supra-nodal ridge. Lateral branches dendroid; spreading. Branch complement two; with 1 branch dominant. Culm-sheaths deciduous; chartaceous; hispid; with tawny hairs; hairy on margins; without auricles; setose on shoulders; shoulders with 3-4 mm long hairs. Culm-sheath ligule 5 mm high; ciliate. Culm-sheath blade triangular; demarcated but persistent; erect; glabrous on surface. Leaves 4-10 per branch. Leaf-sheaths deciduous; ribbed; hispid; with tubercle-based hairs. Leaf-sheath oral hairs scanty, or lacking. Leaf-sheath auricles absent. Ligule an eciliate membrane; 1 mm long; pubescent on abaxial surface; obtuse. Leaf-blade base cuneate; with a brief petiole-like connection to sheath; petiole 0.5-1 cm long; petiole glabrous. Leaf-blades lanceolate; 15-21 cm long; 25-34 mm wide; chartaceous. Leaf-blade venation with 10-16 secondary veins; with distinct cross veins. Leaf-blade surface hispid; hairy abaxially. Leaf-blade margins scaberulous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Flowering specimens unknown.
Distribution
Asia-temperate: China.
Reference
Bambuseae. McClure 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: not 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

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. 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 2024. 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