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

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

  • 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 2023. 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 2023. 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