Poaceae
Axonopus

Axonopus capillaris (Lam.) Chase

First published in Proc. Biol. Soc. Washington 24: 133 (1911)
This species is accepted
The native range of this species is S. Mexico to Tropical America. It is an annual and grows primarily in the seasonally dry tropical 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
Nativa en Colombia; Alt. 0 - 1000 m.; Andes, Orinoquia, Valle del Magdalena.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Morphology General Habit
Annual; caespitose. Culms geniculately ascending, or decumbent; weak; 20-40 cm long; 0.5-0.7 mm diam. Culm-internodes thin-walled. Culm-nodes glabrous, or pubescent. Lateral branches ample. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule a ciliolate membrane; 0.3-0.5 mm long. Leaf-blades linear, or lanceolate; 1.5-7 cm long; 3-7 mm wide. Leaf-blade margins ciliate; hairy at base. Leaf-blade apex acute.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Peduncle 7-15 cm long. Racemes 2; paired; unilateral; 2-3.5 cm long. Rhachis angular; 0.3-0.5 mm wide; glabrous on surface; scabrous on margins; glabrous on margins. Spikelet packing adaxial. Spikelets appressed; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 1.2-1.6 mm long; falling entire.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; 1.2-1.6 mm long; falling entire.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume ovate; 1 length of spikelet; membranous; without keels; 4 -veined. Upper glume primary vein absent. Upper glume surface puberulous.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; 2 -veined; without midvein; puberulous. Fertile lemma elliptic; 1.2-1.6 mm long; indurate; light brown; without keel. Lemma surface striate. Lemma margins involute. Palea involute; indurate.
Morphology Reproductive morphology Flowers
Anthers 3; 0.4 mm long; purple.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; ellipsoid; 1.1 mm long.
Distribution
South America: Mesoamericana, Caribbean, northern South America, western South America, Brazil, and southern South America.
Reference
Paniceae. Fl Costaric 1993.
[GB]

Distribution
Biogeografic region: Andean, Orinoquia. Elevation range: 0–1000 m a.s.l. Native to Colombia. Colombian departments: Antioquia, Meta, Putumayo, Tolima, Valle del Cauca, Vichada.
Habit
Herb.
[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]

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

  • Useful Plants and Fungi of Colombia

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