Grindelia subalpina
(Subalpine Gumweed)
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2275
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2285
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2280
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2287
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2290
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2282
Grindelia subalpina, George Stadler Rd., Rist Canyon, Larimer Co. 2299
| Scientific Name | Grindelia subalpina | USDA PLANTS Symbol | GRSU |
| Common Name | Subalpine Gumweed | ITIS Taxonomic Serial No. | 37473 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Life zones and habitat: Foothills and montane (5500 to 9500 ft.); dry sandy or gravelly soils in open areas, roadsides, disturbed sites. Plant: Perennial or biennial with erect stems 6 to 16 inches tall, usually reddish, sometimes yellowish, and smooth. Leaves: Alternate, oblong to oblanceolate, clasping, glandular surfaces, 5/8 to 2-3/8 inches long; teeth along margins are unevenly-spaced, coarsely serrate or dentate with teeth coming to a sharp point (apiculate). Inflorescence: Composite flower heads in clusters, about 1 to 2+ inches across with 18 to 27 yellow rays surrounding the center of numerous yellow disk florets; 5 to 6 layers of sticky phyllaries below are fleshy with tips usually strongly recurved or hooked to nearly straight. Bloom Period: June to October. References: "Flora of Colorado" by Jennifer Ackerfield and Flora of North America and American Southwest. |
BONAP Distribution Map
Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains