Vascular Plants of North Carolina
Account for Bluejoint Reedgrass - Calamagrostis canadensis   (Michaux) Beauvois
Members of Poaceae:
Members of Calamagrostis with account distribution info or public map:
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Section 5 » Order Cyperales » Family Poaceae
Author(Michaux) Beauvois
DistributionMountains only.

Boreal North America from Greenland and AK south to northeastern GA, NM, and CA.
AbundanceRare to uncommon; known from 11 counties in the state. As a result, the website editors suggest a State Rank of S1S2 instead of S1. This is a Significantly Rare species.
HabitatMoist to wet meadows, streamsides, damp areas in grassy balds, bogs, bases of cliffs. Sites tend to be moist to wet, at least with some seepage.
See also Habitat Account for Montane Wet Meadows
PhenologyFlowering and fruiting June-August.
IdentificationCanada Reedgrass is rhizomatous and usually grows in colonies. Flowering stems (culms) typically grow 3-4 feet tall, with a narrow to somewhat open inflorescence. Cain's Reedgrass (C. cainii) and Porter's Reedgrass (C. porteri) are best told from Canada Reedgrass by having awns surpassing the lemmas (vs. shorter than lemmas). Compared with Canada Reedgrass, Narrowspike Reedgrass (C. stricta ssp. inexpansa) has broader leaves and the inflorescence is thicker and denser. That taxon's spikelets measure 4-5 mm long (vs. 3-4 mm long in the former), and the lemma awn is much thicker than the callus hairs (vs. about same width and thus hard to pick out).
Taxonomic CommentsThe nominate variety occurs in NC.

Other Common Name(s)Canada Reedgrass, Bluejoint, Bluejoint Grass, and several others
State RankS1 [S1S2]
Global RankG5
State Status[SR-P]
US Status
USACE-agcpOBL link
USACE-empFACW link
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