Poa bulbosa L.
bulbous bluegrass
Poaceae (Grass family)

Introduction to Vascular Plants

Photograph

© Adolf Ceska     (Photo ID #11264)


Map

E-Flora BC Static Map

Distribution of Poa bulbosa
Click here to view the full interactive map and legend

SUBTAXA PRESENT IN BC

Poa bulbosa ssp. vivipara

Species Information

General:
Perennial grass from fibrous roots; stems erect or spreading, 15-60 cm tall.
Leaves:
Sheath margins open about 3/4 their length; sterile shoots bulbous at the base, emerging inside sheaths with distinct two-keeled buds protecting the scales; basal bladeless leaves absent; blades 1-2.5 mm wide, flat, lax, thin; ligules 1-3 mm long, the tips rounded to sharp-pointed, the backs smooth or rough.

SourceThe Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Ecology

Ecological Framework for Poa bulbosa

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
1063 445 2222
Slope Gradient (%)
17 0 59

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

178 50 230
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 2 7
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
17
Modal BEC Zone Class
PP

All BEC Zones (# of stations/zone) species was recorded in

BAFA(2), BG(2), ESSF(1), IDF(3), PP(6)

Habitat and Range

Dry to mesic grassy meadows and waste areas in the lowland, steppe and montane zones; frequent in SW and SC BC; introduced from Eurasia.

SourceThe Illustrated Flora of British Columbia