Poaceae
Agrostis

Agrostis lehmannii Swallen

First published in Contr. U.S. Natl. Herb. 29: 263 (1948)
This species is accepted
The native range of this species is Colombia (Cauca). It is a perennial and grows primarily in the montane tropical biome.

Descriptions

Morphology General Habit
Perennial. Culms geniculately ascending; 20-40 cm long. Lateral branches lacking. Leaf-sheaths longer than adjacent culm internode; glabrous on surface. Ligule an eciliate membrane; 7-8 mm long; pubescent on abaxial surface; lacerate. Leaf-blades 6-8 cm long; 2.5-3 mm wide. Leaf-blade surface scaberulous. Leaf-blade apex acute.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; lanceolate; 13 cm long; 3 cm wide. Primary panicle branches ascending, or spreading; bearing spikelets almost to the base. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets. Spikelets elliptic; laterally compressed; 3-3.5 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets. Spikelets elliptic; laterally compressed; 3-3.5 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 3-3.5 mm long; 1.1 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; membranous; purple; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; 1.3 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins excurrent. Lemma surface glabrous. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 6 mm long overall; with a straight or slightly twisted column. Palea absent or minute.
Morphology Reproductive morphology Flowers
Lodicules 2; 0.7 mm long; membranous. Anthers 3; 0.6 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
South America: western South America.
Reference
Aveneae. Swallen 2004.
[GB]

Distribution
Biogeografic region: Andean. Elevation range: 3000–4000 m a.s.l. Endemic to Colombia. Colombian departments: Cauca.
Habit
Herb.
[UPFC]

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
Endémica y nativa en Colombia; Alt. 3000 - 4000 m.; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

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

  • 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 2022 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 2022 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