Poaceae
Leersia

Leersia triandra C.E.Hubb.

First published in Bull. Misc. Inform. Kew 1936: 313 (1936)
This species is accepted
The native range of this species is Guinea to Liberia, Cameroon to Gabon. It is a perennial and grows primarily in the wet tropical 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. Culms decumbent; 15-30 cm long; rooting from lower nodes. Ligule an eciliate membrane; 0.5 mm long; truncate. Leaf-blades 2-6 cm long; 2-4 mm wide. Leaf-blade margins tuberculate-ciliate. Leaf-blade apex acute.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; lanceolate; 2-5 cm long; 0.6 cm wide. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 0.5-1.5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; compressed strongly; 1.7-2 mm long; 1 mm wide; falling entire.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; compressed strongly; 1.7-2 mm long; 1 mm wide; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes both absent or obscure.
Morphology Reproductive morphology Flowers Florets
Fertile lemma 1.7-2 mm long; chartaceous; keeled; 5 -veined. Lemma midvein scaberulous. Lemma surface glabrous, or puberulous. Lemma margins involute. Lemma apex acute. Palea elliptic; 1 length of lemma; chartaceous; 3 -veined; 1-keeled. Palea keels scaberulous. Palea apex entire; glabrous, or pubescent.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 3; 1 mm long. Stigmas 2.
Distribution
Africa: west tropical and west-central tropical.
Reference
Oryzeae. WDC.
[GB]

Gramineae, W. D. Clayton. Flora of West Tropical Africa 3:2. 1972

Morphology General Habit
A straggling grass
Ecology
Of marshy places.
[FWTA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • 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/

  • 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