Poaceae
Bouteloua

Bouteloua simplex Lag.

First published in Varied. Ci. 2(4): 141 (1805)
This species is accepted
The native range of this species is W. & Central U.S.A. to S. South America. It is an annual and grows primarily in the subtropical biome. It is used as a medicine.

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]

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
Nativa en Colombia; Alt. 2000 - 3000 m.; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Distribution
Biogeografic region: Andean. Elevation range: 2000–3000 m a.s.l. Native to Colombia. Colombian departments: Bogotá DC, Boyacá, Caldas, Cundinamarca.
Habit
Herb.
Ecology
Habitat according IUCN Habitats Classification: artificial - terrestrial.
[UPFC]

Morphology General Habit
Annual; caespitose. Culms geniculately ascending, or decumbent; 3-20(-40) cm long. Leaf-sheaths glabrous on surface. Ligule a fringe of hairs. Leaf-blades flat, or involute; 2-8 cm long; 1.5 mm wide. Leaf-blade surface glabrous, or pilose; hairy adaxially. Leaf-blade margins glabrous, or ciliate.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 1; single; unilateral; 1-2.5 cm long; bearing 30-80 fertile spikelets on each. Rhachis semiterete. Spikelet packing broadside to rhachis; crowded. Spikelets pectinate; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.5-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pilose.
Fertile
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.5-5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pilose.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 2-2.5 mm long; 0.5 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins distinct. Lower glume apex acute, or acuminate. Upper glume lanceolate; 3.5-5 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute, or acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 2.5-3.5 mm long; coriaceous; keeled; 3 -veined. Lemma surface pubescent. Lemma apex lobed; 3 -fid; awned; 3 -awned. Principal lemma awn 2 mm long overall. Lateral lemma awns arising on margin of lemma; 1-1.5 mm long; shorter than principal. Palea 2 -veined. Rhachilla extension pilose; hairy at tip. Apical sterile florets 1 in number, or 2 in number; barren; rudimentary. Apical sterile lemmas awned; 3 -awned. Apical sterile lemma awns 5-6 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; obovoid; 1.5-1.75 mm long. Embryo 0.66 length of caryopsis.
Distribution
North America: northwest USA, southwest USA, south-central USA, and Mexico. South America: western South America and southern South America.
Reference
Cynodonteae. Gould.
[GB]

Uses

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

  • Colombian resources for Plants made Accessible

    • ColPlantA 2021. Published on the Internet at http://colplanta.org
    • https://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

    • 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