Scientific Name | Herrickia glauca var. glauca (Eurybia glauca var. glauca) | USDA PLANTS Symbol | EUGLG2 |
Common Name | Gray Aster, Gray's Aster | ITIS Taxonomic Serial No. | 708192 |
Family | Asteraceae (Sunflower) | SEINet Reference |
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Description |
Life zones and habitat: Foothills and montane (5000 to 10000 ft.); open, rocky slopes, sandy locations, forest margins. Plant: Erect perennial growing in colonies with simple or branched, mostly hairless stems 8 to 28 inches tall. Leaves: Greyish-green, smooth, alternate, oblong to lanceolate leaves, tapering to a sharp point, 1-1/2 to 4-3/4 inches long; sessile with entire margins. Inflorescence: Loose corymbiform arrays of many composite flower heads, each about 1 to 1-3/4 inches across, 8 to 19 light purple or lavender rays around a center of 12 to 32 disk florets, yellow later reddish; bell-shaped, hairless and glandless involucre with 4 to 5 rows of phyllaries pressed tightly around the body, outer one green, inner purplish. Blooming period: July to September. References: American Southwest, Montana Field Guide and "Flora of Colorado" by Jennifer Ackerfield. |
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