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This species is accepted, and its native range is Coastal Canada to U.S.A.

[GB]
Morphology General Habit
Perennial; caespitose. Rhizomes elongated. Culms erect, or geniculately ascending; 70-100 cm long. Ligule an eciliate membrane; 1-3 mm long; scarious. Leaf-blades convolute; 20-60 cm long; 2-6 mm wide; stiff. Leaf-blade surface ribbed; scaberulous. Leaf-blade apex filiform.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle spiciform; linear; truncate or rounded at the ends; 15-30 cm long. Primary panicle branches appressed. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.2 length of lemma (2mm).
Fertile
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 10-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 0.2 length of lemma (2mm).
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets, or reaching apex of florets. Lower glume lanceolate; 10-15 mm long; 1 length of upper glume; chartaceous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous. Lower glume apex acuminate. Upper glume lanceolate; 10-15 mm long; 1-1.3 length of adjacent fertile lemma; chartaceous; 1-keeled; 3 -veined. Upper glume surface asperulous. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 10-12 mm long; chartaceous; keeled; 5 -veined. Lemma surface scaberulous. Lemma apex acute. Palea 0.9 length of lemma; 2-4 -veined. Palea keels approximate. Rhachilla extension 0.25-0.33 length of fertile floret; pilose; hairy throughout but longer above.
Morphology Reproductive morphology Flowers
Anthers 3. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
North America: eastern Canada, north-central USA, northeast USA, and southeast USA.
Reference
Aveneae. WDC.

Native to:

British Columbia, California, Connecticut, Delaware, Illinois, Indiana, Labrador, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Brunswick, New Hampshire, New York, Newfoundland, North Carolina, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., South Carolina, Vermont, Virginia, Washington, Wisconsin

Calamagrostis breviligulata (Fernald) Saarela appears in other Kew resources:

First published in PhytoKeys 87: 86 (2017)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Backbone Distributions

  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.

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 2021. 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 2021. 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