Poaceae
Bromus

Bromus berteroanus Colla

First published in Mem. Reale Accad. Sci. Torino 39: 25 (1836)
This species is accepted
The native range of this species is Ecuador to S. South America. It is an annual and grows primarily in the subtropical biome. It is used as animal food.

Descriptions

Distribution
Biogeografic region: Andean. Native to Colombia.
Habit
Herb.
[UPFC]

Morphology General Habit
Perennial. Culms 10-80 cm long. Leaf-sheaths pilose. Ligule an eciliate membrane. Leaf-blades 5-20 cm long; 2-5 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open, or contracted; lanceolate, or oblong; dense; 5-15 cm long. Panicle branches scaberulous. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; scaberulous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 13-22 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent; obtuse; disarticulating obliquely.
Fertile
Spikelets comprising 3-5 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 13-22 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent; obtuse; disarticulating obliquely.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 4-8 mm long; 0.3-0.6 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate; muticous, or awned; 1 -awned. Lower glume awn 0-2 mm long. Upper glume lanceolate; 10 mm long; 0.7-0.8 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 2-3 mm long.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 10-12 mm long; chartaceous; keeled; 7 -veined. Lemma apex lobed; 2 -fid; incised 0.25 of lemma length; acuminate; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 9-15 mm long overall; with twisted column. Palea lanceolate; 1 length of lemma; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Ovary with a fleshy appendage above style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; hairy at apex; apex fleshy.
Distribution
North America: northwest USA, southwest USA, and Mexico. South America: western South America and southern South America.
Reference
Bromeae. WDC.
[GB]

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; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Uses

Use Animal Food
Used as animal food.
[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 2026. 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 2026. 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