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  1. Family: Poaceae Barnhart
    1. Genus: Dichanthelium (Hitchc. & Chase) Gould
      1. Dichanthelium xanthophysum (A.Gray) Freckmann

        This species is accepted, and its native range is Central & E. Canada to N. Central & NE. U.S.A.

    [GB]
    Habit
    Perennial; caespitose; clumped loosely. Culms erect, or geniculately ascending; 20-55 cm long. Culm-internodes antrorsely scabrous. Culm-nodes glabrous. Lateral branches ample; arising from mid culm. Leaves heterophyllous with a basal winter rosette. Leaf-sheaths loose; pilose; with tubercle-based hairs; outer margin hairy. Ligule a ciliate membrane; 1 mm long. Leaf-blades erect; lanceolate; 10-15 cm long; 10-20 mm wide. Leaf-blade venation prominent. Leaf-blade surface glabrous. Leaf-blade margins tuberculate-ciliate; hairy at base. Leaf-blade apex acuminate.
    Inflorescences
    Inflorescence a panicle; terminal and axillary. Panicle open; linear; 5-15 cm long; bearing few spikelets. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
    Spikelets
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; compressed slightly; obtuse; 3.7-4 mm long; 2-2.1 mm wide; falling entire.
    Fertile
    Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; compressed slightly; obtuse; 3.7-4 mm long; 2-2.1 mm wide; falling entire.
    Glume
    Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate; 0.5 length of spikelet; membranous; without keels. Lower glume apex acute. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume lateral veins prominent. Upper glume surface pubescent. Upper glume apex obtuse.
    Florets
    Basal sterile florets barren; with palea, or without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; prominently veined; pubescent; obtuse. Fertile lemma obovate; dorsally compressed; 2.9-3 mm long; 2 mm wide; indurate; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.
    Distribution
    North America: western Canada, eastern Canada, north-central USA, and northeast USA.
    Reference
    Paniceae. Chase 1994.

    Images

    Distribution

    Native to:

    Connecticut, Iowa, Maine, Manitoba, Masachusettes, Michigan, Minnesota, New Brunswick, New Hampshire, New Jersey, New York, Nova Scotia, Ontario, Pennsylvania, Québec, Saskatchewan, South Dakota, Vermont, West Virginia, Wisconsin

    Synonyms

    Other Data

    Dichanthelium xanthophysum (A.Gray) Freckmann appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Gay, J. [28], New York Panicum xanthophysum K000674491
    Gray, A. [s.n.], New York Panicum xanthophysum K000674487
    Gray, A. [s.n.], Manitoba Panicum xanthophysum K000674489
    Bentham, G. [28], New York Panicum xanthophysum K000674490
    Vasey, G. [s.n.], New York Panicum xanthophysum K000674488

    Bibliography

    First published in Phytologia 39: 271 (1978)

    Not accepted by

    • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141. [Cited as Panicum xanthophysum.]

    Literature

    Kew Backbone Distributions

    • Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.

    Sources

    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 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