(bluejoint grass)Select an option below for more information on this species
is a widespread and abundant, tall, perennial, caespitose
grass found in a variety of habitats (usually in wet to moist situations) across Denali from the boreal lowlands into low alpine areas. Stems grow in tufts, arising from horizontal rhizomes
, and can achieve heights of well over a meter (typically 50-150 cm). Stems have 3-8 nodes
that often branch at the upper nodes
. Leaf blades are typically flat, scabrous and 3-8 mm wide. The inflorescence
is an open, often drooping panicle, 5-30 cm long, often purplish. Spikelets
contain a single bisexual floret. The glumes
are narrow. The lemma awn
is contained within the glumes
, and the callus
hairs are all of equal length, as long as the lemmas
. Fruits are single-seed, indehiscent and dry. The key character for identifying this species from other Calamagrostis
species is the length of the lemma
Calamagrostis canadensis greens up in early summer and produces flowers in mid to late summer.
, with stamens
in the same florets (bisexual). Flowers are wind pollinated and seeds are wind disseminated. Seeds can reportedly remain viable up to 5 years in the soil. C. canadensis
also extensively reproduces vegetatively by rhizomes
Calamagrostis canadensis has a circumpolar, widespread distribution. It is occurs throughout North America, occurring widely in suitable habitat across all regions except is absent from the southeastern lower 48 states. In Alaska generally and Denali specifically, Calamagrostis canadensis is common and widespread occurring throughout the area in suitable habitats, although it is rarely abundant in the alpine zone.
Details are shown in the Plots & Charts found at right, depicting recent Denali data.
Calamagrostis canadensis is the most common grass in Alaska occurring in a wide variety of habitats. Generally a low elevation species, it is found from 83 m to 1470 m with an average plot elevation of 585 m. It is most common on east, west, and south facing slopes. Although it is found in plots with slopes from 0 to 42 degrees, it prefers lower angled slopes with an average plot slope of 8 degrees.
Details are shown in the Plots & Charts found at right. For more on how to interpret these figures, visit Understanding Data Presented.
Calamagrostis canadensis This species grows in areas with poorly drained to moderately well drained soils; in mineral soils or peat.
Wide ranging, occurs in wet to moist areas.
1 thought on “Eco-atlas Page”
Comments are closed.