Poaceae
Pseudosasa

Pseudosasa amabilis (McClure) Keng f.

First published in Y.L.Keng, Clav. Gen. Sp. Gram. Prim. Sin.: 154 (1957)
This species is accepted
The native range of this species is SE. China to Vietnam. 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: not threatened. Confidence: confident
[AERP]

Morphology General Habit
Perennial. Rhizomes elongated; leptomorph; scaly. Culms 600-1300 cm long; 30-57 mm diam.; woody; 28-44 -noded; without nodal roots. Culm-internodes terete; thin-walled; 24-48 cm long; light green; striate. Culm-nodes glabrous. Lateral branches dendroid. Buds or branches absent from lower quarter of culm. Branch complement three. Culm-sheaths deciduous; 20-42 cm long; brown; hispid; with appressed hairs; with dark brown hairs; hairy on margins; truncate at apex; setose on shoulders; shoulders with curved hairs; shoulders with 10-15 mm long hairs. Culm-sheath ligule 5 mm high; ciliolate. Culm-sheath blade lanceolate; deciduous; 9-18 cm long; 8-20 mm wide. Leaf-sheaths outer margin hairy. Leaf-sheath oral hairs ciliate; 5-15 mm long. Ligule a ciliolate membrane; 1-2 mm long; pubescent on abaxial surface. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.5 cm long. Leaf-blades lanceolate; 15-35 cm long; 15-35 mm wide. Leaf-blade venation with 14-18 secondary veins; with obscure cross veins. Leaf-blade margins scaberulous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; comprising 3-15 fertile spikelets; bracteate at pedicel base. Panicle contracted; oblong; 4-6 cm long. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2.5-9 mm long; pubescent.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 5-14 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15-27 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3-4 mm long; pubescent; hairy at tip.
Fertile
Spikelets comprising 5-14 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15-27 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 3-4 mm long; pubescent; hairy at tip.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 6-7 mm long; chartaceous; without keels. Lower glume surface pubescent; hairy above. Lower glume margins ciliate. Lower glume apex acute. Upper glume oblong; 9-11 mm long; chartaceous; without keels. Upper glume surface pubescent; hairy above. Upper glume margins ciliate. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong, or ovate; 10-15 mm long; 4-8 mm wide; chartaceous; without keel. Lemma surface puberulous. Lemma margins ciliate; hairy above. Lemma hairs 3-5 mm long. Palea 5-9.5 mm long; 2 -veined. Palea keels ciliolate. Palea surface pubescent; hairy on back; hairy above. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; 2.5 mm long; ciliate. Anthers 3; 6-7 mm long. Filaments 9 mm long. Stigmas 3. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
Asia-temperate: China.
Reference
Bambuseae. Camus 1996.
[GB]

Common Names

unknown
Chinese tonkin cane, prime tonkin cane, tonkin bamboo, tonquin cane

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • EBC Common Names

    • Common Names from Kew's Economic Botany Collection https://www.kew.org/science/collections-and-resources/collections/economic-botany-collection

  • 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

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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 2026. 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 2026. 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