Perennial grass from conspicuous rhizomes, freely rooting; stems erect to more or less decumbent, hollow, 80-150 cm tall/long.
Sheaths somewhat flattened, smooth, open for 1-4 cm; blades (2) 3-5 (6) mm wide, flat or folded, more or less pimpled on the upper surfaces; ligules pointed, entire but usually splitting, minutely hairy, (4) 5-10 mm long.
Inflorescence a narrow panicle, 18-50 cm long, the branches ascending-appressed; spikelets mostly 6- to 11-flowered, linear, tapered at the tips, 10-12 (15) mm long; lower glumes (1.5) 2-2.5 mm long, the upper ones slightly over 3 mm long; lemmas prominently 7-nerved to the narrow, translucent upper margins, 3-4 mm long, smooth, minutely rough on the nerves; stamens 3; anthers 0.5-1 mm long.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Present from Spring to Summer
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|CDF(10), CWH(3), ESSF(2), ICH(2), IDF(17), MS(1), PP(1), SBPS(6), SBS(7)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Panicularia borealis Nash