Poaceae
Acidosasa

Acidosasa carinata (W.T.Lin) D.Z.Li & Y.X.Zhang

First published in Nordic J. Bot. 28: 494 (2010)
This species is accepted
The native range of this species is China (Guangdong). 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. Rhizomes elongated; leptomorph. Culms erect; 100-150 cm long; 5-6 mm diam.; woody. Culm-internodes terete; thin-walled; 4.5-9 cm long; distally glabrous. Lateral branches suffrutescent. Bud complement 1. Branch complement one; solitary; as thick as stem. Culm-sheaths persistent; 6.5-7.5 cm long; glabrous; without auricles; glabrous on shoulders. Culm-sheath blade lanceolate; deciduous; reflexed; 1 cm long. Leaves 6 per branch. Leaf-sheaths reticulately veined; glabrous on surface. Leaf-sheath oral hairs lacking. Leaf-sheath auricles absent. Ligule an eciliate membrane; 3-4 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades oblong; 10-23 cm long; 25-40 mm wide. Leaf-blade venation with 14 secondary veins; with distinct cross veins. Leaf-blade surface glabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; comprising 8-11 fertile spikelets. Panicle open; oblong, or ovate. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 10-30 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 4-9 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 35-80 mm long; 3-6 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4 mm long; eventually visible between lemmas; pubescent.
Fertile
Spikelets comprising 4-9 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 35-80 mm long; 3-6 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4 mm long; eventually visible between lemmas; pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes several; 4 empty glumes; persistent; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 6 mm long; scarious; without keels. Lower glume apex acute. Upper glume ovate; 15 mm long; scarious; without keels. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 12-16 mm long; chartaceous; without keel; 12-14 -veined. Lemma apex acuminate. Palea 7-11 mm long. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; 2.5 mm long; glabrous. Anthers 6; 4 mm long. Stigmas 3.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
Asia-temperate: China.
Reference
Bambuseae. Nguyen 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 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