State Noxious Weed List -No

Growth form: Generally an annual, rarely biennial, shrub native to the northern Great Plains. Grows 3 to 4 feet tall along marshes, stream banks, and slough areas. The flowers are bright yellow in umbels of 6 to 12 or more heads. Each flower is about 0.15 to 0.5 inches across. The leaves are oblong, toothed and clasp the stem generally 5 to 6 inches long. The stems are hollow and pubescent. The plant flowers from May to early-July. The achenes have long pappus-hairs which are quite noticeable. The seed are thought to be spread by waterfowl.

The genus Senecio is found world-wide and contains about 3,000 species which range from tropical trees to succulents to arctic herbs.