Senecio viscosus L.

• Authority

  Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

• Family

  Asteraceae

• Scientific Name

  Senecio viscosus L.

• Description

  Species Description - Strong-scented annual 1–6 dm from a taproot, copiously and conspicuously glandular-hairy throughout; lvs equably distributed, pinnatifid and toothed, 3–12 × 1–5 cm, the lower petiolate; heads less crowded than in nos. 17 [Senecio sylvaticus L.] and 19 [Senecio vulgaris L.], the disk 7–15 mm wide; invol 6–8 mm, with ca 21 or seldom only 13 principal bracts and generally a few well developed but not black- tipped bracteoles; rays short but evident and loosely spreading in life, in herbarium specimens becoming rather circinate and inconspicuous, scarcely exceeding the pappus, which generally surpasses the disk- fls; achenes glabrous or nearly so; 2n=40. Native of Europe, now ± established as a weed in waste places from Que. and N.S. to Pa. and N.J., near the coast. July–Sept.

• Common Names

  sticky groundsel