Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
Senecio L. -- Ragwort
Erect annuals or perennials; leaves simple, entire to usually variously
toothed or lobed, alternate, often petiolate at or near the base, sessile and
commonly reduced upward. Heads radiate, few to many in one or more corymbiform
to umbelliform clusters; involucral bracts in one series and essentially
equal, not imbricate, sometimes with a few highly reduced bracts below, herbaceous
throughout or scarious above; receptacle flat to convex, naked; ray florets
pistillate, the ligules yellow; disk florets perfect, yellow; style branches
flattened, truncate and puberulent at the tip. Achenes subterete, 5-
to 10-nerved; pappus of numerous capillary bristles.
||Plants annual or biennial, hollow-stemmed; leaves
basically all similar in shape.
||Plants perennial, solid-stemmed; basal leaves differing
in shape from cauline leaves.
49. Asteraceae, the Aster Family
14. Senecio L. -- Ragwort
- 1. Senecio congestus (R.Br.) DC. --
- 2. Senecio pseudaureus Rydb.
Return to Family -- Asteraceae - The Aster Family
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