Poaceae
Bouteloua

Bouteloua media (E.Fourn.) Gould & Kapadia

First published in Brittonia 16: 196 (1964)
This species is accepted
The native range of this species is Mexico to NE. Argentina. It is a perennial and grows primarily in the subtropical 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]

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
Colombia
[CPLC]

Distribution
Native to Colombia.
[UPFC]

Morphology General Habit
Perennial; caespitose. Rootstock not evident, or evident. Culms erect; 80-200 cm long; 5-7 -noded. Culm-nodes purple. Lateral branches sparse; arising from upper culm. Leaf-sheaths glabrous on surface to hirsute. Ligule a fringe of hairs; 0.2-0.5 mm long. Leaf-blades 4-9 mm wide. Leaf-blade surface glabrous to hirsute.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 7-15; borne along a central axis; unilateral; 2-6 cm long; bearing 10-20 fertile spikelets on each. Central inflorescence axis 4-30 cm long; tip subulate. Rhachis deciduous from axis; angular; terminating in a barren extension; extension subulate. Spikelet packing broadside to rhachis. Spikelets appressed; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 4-6 mm long; falling entire; deciduous with accessory branch structures.
Fertile
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 4-6 mm long; falling entire; deciduous with accessory branch structures.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume linear; 2.5-3 mm long; 0.6-0.7 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface smooth to scabrous; glabrous to pubescent. Lower glume apex acute to setaceously attenuate. Upper glume lanceolate; 3.4-4.5 mm long; 0.7-0.8 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume surface smooth to scabrous; glabrous to pubescent. Upper glume apex acute, or acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 4-6 mm long; coriaceous; keeled; 3 -veined. Lemma apex dentate; 3 -fid; awned; 3 -awned. Principal lemma awn 0.5-1 mm long overall. Lateral lemma awns arising on margin of lemma; 0.5-1 mm long; subequal to principal. Rhachilla extension glabrous. Apical sterile florets 1 in number; barren; oblong. Apical sterile lemmas dentate; 3 -fid; awned; 3 -awned. Apical sterile lemma awns 3-8 mm long.
Morphology Reproductive morphology Flowers
Anthers orange, or red.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; 2.2-2.5 mm long.
Distribution
North America: Mexico. South America: Mesoamericana, western South America, Brazil, and southern South America.
Reference
Cynodonteae. Gould.
[GB]

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

    • '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

  • Useful Plants and Fungi of Colombia

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