1. Family: Poaceae Barnhart
    1. Genus: Elymus L.
      1. Elymus texensis J.J.N.Campb.

        This species is accepted, and its native range is Texas.

    [GB]
    Habit
    Perennial; caespitose. Culms 70-110 cm long; 4-6 -noded. Leaf-sheaths glabrous on surface. Leaf-sheath auricles absent, or falcate; 0-1 mm long. Ligule an eciliate membrane; 1 mm long; erose. Leaf-blades flat, or involute; 2-9 mm wide. Leaf-blade surface scaberulous; rough adaxially; glabrous, or pubescent; hairy adaxially.
    Inflorescences
    Inflorescence composed of racemes. Racemes 1; single; straight, or arcuate; bilateral; 9-10 cm long; 20-25 mm wide. Rhachis ciliate on margins. Spikelet packing broadside to rhachis. Rhachis internodes linear; (5-)7-15(-22) mm long. Spikelets appressed; in pairs. Fertile spikelets sessile.
    Spikelets
    Spikelets comprising 5-8 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 25-40 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Fertile
    Spikelets comprising 5-8 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 25-40 mm long; breaking up at maturity; disarticulating below each fertile floret.
    Glume
    Glumes persistent; similar; shorter than spikelet. Lower glume subulate; 14-24 mm long; 0-1 -veined. Lower glume lateral veins absent. Upper glume subulate; 14-25 mm long; 0-1 -veined. Upper glume primary vein absent, or distinct. Upper glume lateral veins absent.
    Florets
    Fertile lemma lanceolate; 8-12 mm long; coriaceous; without keel. Lemma surface glabrous. Lemma apex awned; 1 -awned. Principal lemma awn straight, or curved; 8-25 mm long overall. Palea 7-11 mm long.
    Flowers
    Anthers 3; 4.5-6 mm long.
    Distribution
    North America: south-central USA.
    Reference
    Triticeae. Campbell 2007.

    Distribution

    Elymus texensis J.J.N.Campb. appears in other Kew resources:

    First published in Sida 22: 488 (2006)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

    Sources

    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 Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0