Solidago riddellii Frank

• 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

  Solidago riddellii Frank

• Description

  Species Description - Plants 4–10 dm from a ± well developed caudex, sometimes with creeping rhizomes as well; stem generally stout, glabrous except for some puberulence in the infl; lvs ± basally disposed, glabrous except for the scabrous margins, entire, firm, mostly conduplicate, tending to be triple-nerved, the lowest ones with elongate, narrow blade much exceeded by the petiole, but often deciduous; cauline lvs numerous, becoming sessile but otherwise not strongly reduced upwards, clasping or sheathing at base, often arcuate; infl corymbiform, the heads numerous and crowded, rarely less than 50, often several-hundred; invol 5–6 mm, glabrous, its bracts firm, obtuse or broadly rounded, ± striate; rays 7–9; achenes glabrous or nearly so, evidently 5–7-nerved; 2n=18. Swamps, wet meadows, and moist prairies; s. Ont. to O., w. to Minn. and Mo.