Senecio bigelovii var. hallii
(Nodding Ragwort)
Senecio bigelovii var. hallii, Hoosier Pass, Park Co. 9063/9082
Senecio bigelovii var. hallii, Lower McCullough Gulch, Summit Co 7330
Senecio bigelovii var. hallii, Newcastle-Buford Rd., White River Plateau, Garfield Co. 6204
Senecio bigelovii var. hallii, Newcastle-Buford Rd., White River Plateau, Garfield Co. 6220
Senecio bigelovii var. hallii, Hoosier Pass, Park Co. 9035
Senecio bigelovii var. hallii, Hoosier Pass, Park Co. 9147/9159
Senecio bigelovii var. hallii, Hoosier Pass, Park Co. 9123
Senecio bigelovii var. hallii, Newcastle-Buford Rd., White River Plateau, Garfield Co. 6215
| Scientific Name | Senecio bigelovii var. hallii | USDA PLANTS Symbol | SEBI2 |
| Common Name | Nodding Ragwort, Rayless Senecio | ITIS Taxonomic Serial No. | 36103 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Life zones and habitat: Montane and subalpine (7800 to 12000 ft.); dry open woods, hillsides and meadows.
Plant: Erect perennial 16 to 40 inches tall, single or a few stems, woolly-hairy (var. hallii) or smooth (var. bigelovii). Leaves: Ovate to lanceolate, toothed edges, 3 to 6 inches long near base; alternate and much smaller upward; lower leaves usually tapering to petioles and mid and upper leaves may be weakly clasping. Inflorescence: Small, nodding, composite flower heads about 1/2-inch across in clusters of 2 to 12 rayless heads, each with many yellow disk florets enclosed by phyllaries, green early and becoming dark purple later in the season; ~21 phyllaries 1/3 to 1/2-inch long. References: "Flora of Colorado" by Jennifer Ackerfield, American Southwest and SEINet and Flora of North America. |
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