Senecio triangularis
(Arrowleaf Ragwort)
Senecio triangularis, FR 679, Ophir Pass Rd., San Juan Co. 8394
Senecio triangularis, Mohawk Lakes, Summit Co. 2529
Senecio triangularis, Black Powder Pass, Summit Co. 4278
Senecio triangularis, FR 679, Ophir Pass Rd., San Juan Co. 8399
Senecio triangularis, Mayflower Gulch, Summit Co. 3841
Senecio triangularis, Mayflower Gulch, Summit Co. 8440
Senecio triangularis with Philonotis fontana moss, Crystal Lakes, Summit Co. 0659
| Scientific Name | Senecio triangularis | USDA PLANTS Symbol | SETR |
| Common Name | Arrowleaf Groundsel, Arrowleaf Ragwort | ITIS Taxonomic Serial No. | 36090 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Life zones and habitat: Montane and subalpine (6500 to 13500 ft.); moist areas in meadows, along streams and ponds.
Plant: Perennial, 1 to 5 feet tall, with usually smooth, stout, leafy stems. Leaves: Alternate, triangular-shaped, 1-3/4 to 8 inches long and half as wide; coarsely-toothed edges and smooth surfaces. Inflorescence: Composite flower heads about an inch across in corymb-like clusters of 10 to 30; each flower with about 8 narrow yellow rays and relatively small center with darker yellow disk florets; green, smooth phyllaries below. Bloom Period:July to September. References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel and SEINet. |
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