Poaceae
Cynodon

Cynodon tenellus R.Br.

First published in Prodr. Fl. Nov. Holland.: 187 (1810)
This species is accepted
The native range of this species is Jawa to N. Australia. It is an annual or perennial and grows primarily in the seasonally dry 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; caespitose. Stolons present. Culms erect, or geniculately ascending; 20-40 cm long; without nodal roots, or rooting from lower nodes. Ligule a ciliolate membrane. Leaf-blades 5-10 cm long; 1-2 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 3-6; digitate; unilateral; 4-7 cm long. Rhachis flattened. Spikelet packing broadside to rhachis; crowded; regular; 2 -rowed. Spikelets appressed; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; compressed strongly; 1.8-2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; compressed strongly; 1.8-2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; with lower wider than upper; exceeding apex of florets; similar to fertile lemma in texture; parallel to lemmas. Lower glume oblong; 1.8-2.2 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume oblong; 1.8-2.2 mm long; 2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; laterally compressed; 1 mm long; membranous; keeled; 3 -veined. Lemma midvein pubescent. Lemma margins pubescent. Lemma apex obtuse. Palea 2 -veined. Palea keels approximate; pubescent.
Morphology Reproductive morphology Flowers
Anthers 3; 0.3 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Asia-tropical: Malesia and Papuasia. Australasia: Australia.
Reference
Cynodonteae. Tothill.
[GB]

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

    • '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 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