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

Grindelia hirsutula Hook. & Arn.
Hairy Gumweed
Asteraceae (Aster family)

Introduction to Vascular Plants

Distribution of Grindelia hirsutula
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SUBTAXA PRESENT IN BC

Grindelia hirsutula var. hirsutula

Species Information

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Illustration Source: The Illustrated Flora of British Columbia

General:
Perennial herb from a taproot and a stout, branched stem-base; stems erect, few branched above, densely glandular, also with some stiff, translucent hairs; 20-80 cm tall.

Leaves:
Basal leaves toothed; stem leaves alternate, oblong to lanceolate, stiff-hairy, toothed, the teeth regular and 1-2.5 mm long.

Flowers:
Inflorescence of solitary or a flat-topped cluster of heads, the heads 12-23 mm wide; rays yellow, 20-60; involucral bracts erect to reflexed, outer ones long, slender.

Fruits:
Achenes compressed, smooth to ridged, 4.5-5 mm long; pappus awns flat.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry sites in the lowland zone; rare on the Gulf Islands, known only from Lasqueti Island; disjunct S to CA.

Source: The Illustrated Flora of British Columbia

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
Native	S4	Yellow	Not Listed

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

Taxonomic and Nomenclatural Links

Flora North America treatment for Asteraceae
Flora North America treatment for Grindelia hirsutula
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: 2024-11-21 4:18:06 PM ]

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