Poaceae
Eriocoma

Eriocoma nevadensis (B.L.Johnson) Romasch.

First published in PhytoKeys 126: 102 (2019)
This species is accepted
The native range of this species is W. U.S.A. It is a perennial and grows primarily in the temperate biome.

Descriptions

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]

Morphology General Habit
Perennial (tufted); caespitose; clumped densely. Culms 40-90 cm long. Culm-internodes antrorsely scabrous; distally glabrous. Leaf-sheaths smooth, or scaberulous; glabrous on surface. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades filiform; flat, or involute; 10-25 cm long; 1-3 mm wide. Leaf-blade surface puberulous (above).
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; linear; 10-25 cm long. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 7-10 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent; obtuse.
Fertile
Spikelets comprising 7-10 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; pubescent; obtuse.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 7-10 mm long; 1 length of upper glume; without keels; 3 -veined. Lower glume apex acuminate. Upper glume lanceolate; 7-10 mm long; hyaline; without keels; 3 -veined. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; subterete; 5-6.5 mm long; coriaceous; without keel; 5 -veined. Lemma surface villous. Lemma margins convolute; covering most of palea. Lemma hairs 1.5 mm long. Lemma apex acute; awned; 1 -awned. Principal lemma awn bigeniculate; 20-35 mm long overall; with twisted column; limb plumose (first and second segment); with 0.5-1.5 mm long hairs. Column of lemma awn glabrous. Palea 0.5 length of lemma; 2 -veined; without keels. Palea surface pubescent.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 3. Stigmas 2. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
North America: southwest USA.
Reference
Stipeae. Johnston.
[GB]

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