RIDDELL RAGWORT
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| File Size: 68 KB |
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Senecio riddellii T. & G.
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| Comanche County, Kansas |
| Perennial - somewhat shrubby |
| Height: 12-40 inches |
| Family: Asteraceae - Sunflower Family |
| Flowering Period: August, September,October |
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| Stems: | | Erect to arching, numerous, branched above, glabrous, woody at base. | | Leaves: | | Alternate, crowded, stalked to sessile, irregularly pinnately-divided; segments linear, 1.6 to 3.6 inches long, less than 1/5 inch wide, glabrous; lower leaves often drying and drooping on mature plants. | | Inflorescences: | | Cluster of heads, flat-topped, terminal; each cluster with 5-20 heads. | | Flowers: | | Heads up to 1.25 inch across, bell-shaped, on stalks; bracts frequently 13, 1/3 to 2/5 inch long; ray florets frequently 8, 1/3 to 2/5 inch long, yellow, often drooping; disk florets numerous, corollas yellowish-orange. | | Fruits: | | Achenes, cylindrical, ribbed, short-hairy, gray, tipped with numerous slender white bristles, enclosing small seed. | | Habitat: | | Shortgrass and sandsage prairies, rocky pastures, and drying flood plains; open, sandy sites. | | Distribution: | | West 1/2 of Kansas. | | Toxicity: | | Poisonous to livestock. Usually eradicated from pastures when found. |
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| Riddell ragwort |  | | 73 KB | | Comanche County, Kansas |
| | Riddell ragwort |  | | 115 KB | | Comanche County, Kansas |
| | Riddell ragwort |  | | 76 KB | | Comanche County, Kansas |
| | Riddell ragwort leaves |  | | 71 KB | | Comanche County, Kansas |
| | Riddell ragwort |  | | 119 KB | | Barber County, Kansas |
| | Riddell ragwort |  | | 177 KB | | Barber County, Kansas |
| | Riddell ragwort |  | | 204 KB | | Barber County, Kansas |
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