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Occurs in a variety of slightly disturbed habitats, mostly on infertile soil with sparse vegetation
Quebec to MN, south to FL and TX.
Hemiparasitic annual; stems 20-60 cm, glabrous or nearly so, usually branched; leaves linear, 1-6 mm wide; pedicels filiform, widely divergent, 1-2 cm at anthesis; calyx tube 2-4 mm, its lobes broadly triangular to subulate, 0.3-2.2 mm; corolla 1-1.5 cm, its upper lip arching over the stamens, glabrous within; pollen sacs 1.5-2.2 mm.
Flowers August to October
Wetland indicator: NA
One the most common members of this genus.
Gleason, Henry A.
and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
© Michael Hough 2018