Poaceae
Schizostachyum

Schizostachyum glaucifolium (Rupr.) Munro

First published in Trans. Linn. Soc. London 26: 137 (1868)
This species is accepted
The native range of this species is Pacific. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms 300-1000 cm long; woody. Culm-internodes terete; thin-walled; dark green, or glaucous. Lateral branches dendroid. Branch complement one, or two. Ligule an eciliate membrane. Leaf-blade base asymmetrical; with a brief petiole-like connection to sheath; petiole 0.5-1.5 cm long. Leaf-blades lanceolate; 21-45 cm long; 40-55 mm wide; light green. Leaf-blade venation with 22-30 secondary veins. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in stellate clusters; 1.5-3 cm long; dense; 1-2 cm between clusters; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between branches; 45 cm long overall. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets linear; subterete; 10-13 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets linear; subterete; 10-13 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes several; persistent; shorter than spikelet.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 10-13 mm long; chartaceous; without keel. Lemma margins convolute; covering most of palea. Lemma apex attenuate. Palea tightly convolute around flower; chartaceous; without keels.
Morphology Reproductive morphology Flowers
Lodicules 3. Anthers 6. Stigmas 3. Ovary with a steeple-like appendage.
Morphology Reproductive morphology Fruits
Caryopsis with free brittle pericarp.
Distribution
Asia-tropical: Papuasia. Pacific: southwestern and south-central.
Reference
Bambuseae. Camus 1995.
[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]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/44393126/44544960

Conservation
LC - least concern
[IUCN]

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/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • 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