Poaceae
Phyllostachys

Phyllostachys aureosulcata McClure

First published in J. Washington Acad. Sci. 35: 282 (1945)
This species is accepted
The native range of this species is E. China. It is a bamboo and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial. Rhizomes elongated; leptomorph. Culms erect; 700-800 cm long; 30 mm diam.; woody. Culm-internodes semiterete; thin-walled; 35 cm long; retrorsely scabrous; distally mealy. Culm-nodes glabrous. Lateral branches dendroid. Culm-sheaths green and white, or yellow; striped; without auricles, or auriculate; setose on shoulders. Culm-sheath ligule 3-4 mm high; ciliolate. Culm-sheath blade triangular; erect, or reflexed; scabrid. Leaves cauline; 3-5 per branch. Leaf-sheath oral hairs lacking, or ciliate. Leaf-sheath auricles absent, or falcate. Ligule a ciliolate membrane; 1-1.5 mm long; pubescent on abaxial surface. Leaf-blade base with a brief petiole-like connection to sheath; petiole glabrous. Leaf-blades lanceolate; 15 cm long; 19 mm wide. Leaf-blade surface pilose; sparsely hairy; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; fasciculate; dense; with spathaceous subtending bracts; bracts 15-18 mm long; without axillary buds at base of spikelet; with ultimate bract subtending a compact bracteolate fascicle of spikelets; prophyllate below lateral spikelets. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 2 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes two; persistent; shorter than spikelet. Lower glume lanceolate; 7 mm long. Upper glume lanceolate; 10 mm long; chartaceous; 1-keeled. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 10 mm long; chartaceous; without keel. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 1-2 mm long overall. Palea 1 length of lemma; chartaceous. Apical sterile florets distinct from fertile; rudimentary.
Morphology Reproductive morphology Flowers
Lodicules 3. Anthers 3. Stigmas 3.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Asia-temperate: China.
Reference
Bambuseae. McClure 2002.
[GB]

Sources

  • 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 2023. 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 2023. 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

  • Kew Science Photographs

    • Copyright applied to individual images