Bambusa intermedia Hsueh f. & T.P.Yi

First published in J. Bamboo Res. 3(2): 43 (1984)
This species is accepted
The native range of this species is China (Guizhou, Sichuan, Yunnan). It is a bamboo and grows primarily in the subtropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; erect at the tip, or inclined at the tip; 700-1500 cm long; 30-70(-110) mm diam.; woody. Culm-internodes terete; thick-walled; 35-45(-55) cm long; distally mealy. Culm-nodes swollen. Lateral branches dendroid. Branch complement several. Culm-sheaths deciduous but leaving a persistent girdle; 20-30 cm long; 1 times as long as wide; hispid; with yellow hairs, or tawny hairs; concave at apex; without auricles; setose on shoulders. Culm-sheath ligule 2-3 mm high; ciliate. Culm-sheath blade lanceolate; constricted at base; erect, or reflexed; pubescent. Leaves cauline; 5-12 per branch. Leaf-sheaths 5-7 cm long; glabrous on surface. Leaf-sheath oral hairs ciliate. Leaf-sheath auricles falcate. Ligule an eciliate membrane; truncate. Collar with external ligule. Leaf-blade base truncate, or cordate; with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 7-15 cm long; 10-25 mm wide. Leaf-blade venation with 10-14 secondary veins. Leaf-blade surface pubescent; hairy adaxially. Leaf-blade apex acuminate; filiform.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 7-11 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; pubescent.
Fertile
Spikelets comprising 7-11 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-40 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes several; persistent; shorter than spikelet.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 7-10 mm long; without keel; 13 -veined. Lemma surface glabrous. Lemma apex cuspidate. Palea apex obtuse. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous. Anthers 6; 4.5 mm long; anther tip smooth. Stigmas 3. Ovary with a few apical hairs.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Asia-temperate: China.
Reference
Bambuseae. Hsueh & Yi 2002.
[GB]

Sources

  • 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 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 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 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0