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

Poa bulbosa L.
bulbous bluegrass
Poaceae (Grass family)

Introduction to Vascular Plants

Distribution of Poa bulbosa
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SUBTAXA PRESENT IN BC

Poa bulbosa ssp. vivipara

Species Information

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Illustration Source: The Illustrated Flora of British Columbia

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
Site Information	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)
Source: Klinkenberg 2020

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.

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Exotic	SNA	Exotic	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Taxonomic and Nomenclatural Links

Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer
USDA

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-11-24 2:08:07 PM ]

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