Poaceae
Digitaria

Digitaria stenotaphrodes (Nees ex Steud.) Stapf

First published in Bull. Misc. Inform. Kew 1906: 77 (1906)
This species is accepted
The native range of this species is Pacific. 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. Butt sheaths pilose. Culms geniculately ascending; 30-90 cm long. Ligule an eciliate membrane; 2-2.5 mm long. Leaf-blades linear, or lanceolate; 5-20 cm long; 3-6 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 3-6; digitate; end to end; erect; unilateral; 4-10 cm long. Rhachis broadly winged; folded longitudinally to embrace spikelets and forming pockets; 2-4 mm wide. Spikelet packing regular; 2 -rowed. Spikelets solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; 2.5-3.5 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; 2.5-3.5 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes one the lower absent or obscure, or two; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.2 mm long; 0.05 length of spikelet; membranous; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse, or acute. Upper glume lanceolate, or ovate; 0.1-0.33 length of spikelet; hyaline; without keels; 0-1 -veined. Upper glume primary vein absent, or distinct. Upper glume lateral veins absent. Upper glume surface glabrous, or puberulous. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic, or ovate; 1 length of spikelet; membranous; 5 -veined; ribbed; with equidistant veins; smooth; glabrous, or puberulous; acute. Fertile lemma elliptic; 2.5-3.5 mm long; cartilaginous; much thinner on margins; without keel. Lemma margins flat; covering most of palea. Lemma apex acute. Palea cartilaginous.
Morphology Reproductive morphology Flowers
Anthers 3.
Distribution
Pacific: southwestern, south-central, and northwestern.
Reference
Paniceae. Henrard 1993.
[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 2025. 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 2025. 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