General:
Perennial, tufted grass often with decumbent bases; stems slender, erect, 20-40 cm tall.

Leaves:
Sheaths smooth, overlapping, the lower ones compressed; blades flat, crowded along the lower part of the stem, 1-2 mm wide; ligules about 0.5 mm long, finely jagged.

Flowers:
Inflorescence a loose, open, oblong panicle, 7-20 cm long, 10-40 mm wide, the branches and flower stalks hairlike; spikelets dark purplish, 1- (rarely 2-) flowered, about 1-1.5 mm long; glumes 0.4-0.6 mm long, short-pointed, scarcely half as long as the spikelets; lemmas short-pointed, faintly 3-nerved, 1-1.2 mm long, unawned; paleas lanceolate, smooth, 0.3-0.4 mm long; anthers 0.3-0.4 mm long, purplish.

Source:  The Illustrated Flora of British Columbia

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

Flower Colour:
Yellow

Blooming Period:
Mid Summer

Fruit/Seed characteristics:
Colour: Yellow
Present from Summer to Fall

Source:  The USDA

Synonyms and Alternate Names:
Muhlenbergia uniflora var. terrae-novae Fernald
Sporobolus uniflorus (Muhl.) Scribn. & Merr.