Poaceae
Digitaria

Digitaria setigera Roth

First published in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15[bis]. 2: 474 (1817)
This species is accepted
The native range of this species is Tanzania to Pacific. It is an annual or biennial and grows primarily in the seasonally dry tropical biome. It is used as animal food and a medicine.

Descriptions

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Naturalizada y adventicia en Colombia; Alt. 0 - 1500 m.; Andes, Islas Caribeñas.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Morphology General Habit
Annual. Culms decumbent; 20-80 cm long. Ligule an eciliate membrane. Leaf-blades linear, or lanceolate; 3-25 cm long; 3-12 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 3-15; digitate, or borne along a central axis; unilateral; 4-15 cm long. Central inflorescence axis 1-6 cm long. Rhachis narrowly winged; angular; glabrous on surface, or with scattered hairs; scabrous on margins. Spikelet packing 0.66 their length apart. Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels unequal.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic; dorsally compressed; 2-3 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic; dorsally compressed; 2-3 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes one the lower absent or obscure; shorter than spikelet; thinner than fertile lemma. Upper glume oblong, or ovate; 0.1-0.25 length of spikelet; membranous; without keels; 0-3 -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; 7 -veined; with equidistant veins, or with unevenly spaced veins; pubescent and setose (sometimes); eciliate on margins, or ciliate on margins; acute. Fertile lemma elliptic; 2-3 mm long; cartilaginous; much thinner on margins; grey, or light brown; without keel. Lemma margins flat; covering most of palea. Lemma apex acute. Palea cartilaginous.
Distribution
Africa: east tropical and western Indian ocean. Asia-temperate: China and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Australasia: Australia and New Zealand. Pacific: southwestern, south-central, northwestern, and north-central. North America: Mexico. South America: Mesoamericana, northern South America, and western South America.
Reference
Paniceae. FTEA.
[GB]

Distribution
Biogeografic region: Andean, Caribbean. Elevation range: 0–1500 m a.s.l. Naturalised in Colombia. Colombian departments: Antioquia, Quindío, San Andrés y Providencia.
Habit
Herb.
Ecology
Habitat according IUCN Habitats Classification: shrubland, artificial - terrestrial.
[UPFC]

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]

Uses

Use Animal Food
Used as animal food.
Use Gene Sources
Used as gene sources.
Use Medicines
Medical uses.
[UPFC]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Catálogo de Plantas y Líquenes de Colombia

    • 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 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

  • Kew Science Photographs

    • Copyright applied to individual images

  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0