Poaceae
Eragrostis

Eragrostis andicola R.E.Fr.

First published in Nova Acta Regiae Soc. Sci. Upsal., ser. 4, 1(1): 180 (1905)
This species is accepted
The native range of this species is Peru, NW. Argentina. It is a perennial and grows primarily in the subtropical biome.

Descriptions

Morphology General Habit
Perennial; short-lived; caespitose. Culms erect; 7-15 cm long. Culm-internodes distally glabrous. Lateral branches lacking. Leaf-sheaths 1-2 cm long; glabrous on surface; outer margin hairy. Ligule a fringe of hairs; 1-1.5 mm long. Leaf-blades flat, or convolute; 2-5 cm long; 2.5-3.5 mm wide. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; oblong, or ovate; 3.5-8 cm long; 2.5-4 cm wide. Primary panicle branches 1-2 -nate. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-2 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 3-5 mm long; 2-2.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas.
Fertile
Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets elliptic, or oblong; laterally compressed; 3-5 mm long; 2-2.5 mm wide; breaking up at maturity; rhachilla persistent; retaining paleas.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 1-1.5 mm long; 0.5-0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 2 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 2 mm long; membranous; dark green; keeled; 3 -veined. Lemma midvein scaberulous. Lemma apex acute. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; cuneate; fleshy.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
South America: southern South America.
Reference
Eragrostideae. Fries 2002.
[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]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • 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 2025. 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 2025. 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