E-Flora BC: Electronic Atlas of the Flora of British Columbia

Poa bulbosa L.
bulbous bluegrass
Poaceae (Grass family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #11264)

E-Flora BC Static Map
Distribution of Poa bulbosa
Click here to view the full interactive map and legend
Details about map content are available here
New! Click on the map dots to view record details.

SUBTAXA PRESENT IN BC
Poa bulbosa ssp. vivipara

Species Information

Click on the image below to view an expanded illustration for this species.



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.

Source: The 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

Habitat / 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.

Source: The Illustrated Flora of British Columbia

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

Minimum

Average

Maximum

Elevation (metres) 445 1063 2222
Slope Gradient (%) 0 17 59
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 178 230
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 3 7
Modal Nutrient Regime
Class
C
Number 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)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References