Poaceae
Digitaria

Digitaria gardneri Henrard

First published in Blumea 1: 105 (1934)
This species is accepted
The native range of this species is Brazil. It is an annual 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
Annual. Culms erect; 50-100 cm long; 5-6 -noded; with 0.5 of their length below uppermost node. Culm-nodes glabrous. Lateral branches lacking. Leaf-sheaths pilose; with tubercle-based hairs. Ligule an eciliate membrane; 1 mm long. Leaf-blades 10-20 cm long; 3-4 mm wide. Leaf-blade surface glabrous; hairless except near base.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 2-6; digitate; unilateral; 2-15 cm long. Central inflorescence axis 1-5 cm long. Rhachis narrowly winged; angular. Spikelets in threes. Fertile spikelets pedicelled. Pedicels unequal.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2 mm long; with hairs extending 0.5 mm beyond apex; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2 mm long; with hairs extending 0.5 mm beyond apex; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes one the lower absent or obscure; shorter than spikelet; thinner than fertile lemma. Upper glume linear; 0.75 length of spikelet; membranous; without keels; 3 -veined. Upper glume surface pubescent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 5 -veined; pubescent; hairy between veins but central interspaces glabrous; acute. Fertile lemma elliptic; 1.8 mm long; cartilaginous; much thinner on margins; purple; without keel. Lemma margins flat; covering most of palea. Lemma apex apiculate. Palea cartilaginous.
Morphology Reproductive morphology Flowers
Anthers 3.
Distribution
South America: Brazil.
Reference
Paniceae. Henrard 1995.
[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