Bidens mitis (Michx.) Sherff
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Asteraceae
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Scientific Name
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Description
Species Description - Annual 3–10 dm, glabrous or nearly so; lvs 4–12 cm including the 0.3–3 cm petiole, highly variable in form, pinnately compound to more often pinnately 3–7-parted with the terminal segment the largest, varying to simple, ovate, and merely toothed, or even narrow and subentire; heads rather small, the disk ca 1 cm wide or less; outer invol bracts 7–10, linear or linear-spatulate, 5–10 mm, mostly short-ciliate, glabrous on the back, or the invol sparsely hispid at base; rays ca 8, yellow, 1–2 cm; achenes rather broadly cuneate, 2.5–4.5(–5) mm, glabrous or nearly so, scarcely ciliate; pappus of 2 sharp, antrorsely barbed teeth to 1 mm, or obsolete; 2n=24. Swamps and other wet places; coastal plain from Md. to Fla. and Tex. July–Oct. (B. coronata, misapplied)
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Common Names
coastal plain tickseed-sunflower