In dry soil in open woods and fallow fields and along roadsides. This is a very conspicuous plant, usually about a meter high. It is restricted to the southern part of the state and has been reported as Pycnanthernum incanum. I was informed by a pioneer of Perry County that he was cured of incontinence of urine by a tea made of this plant.
Stems to 1+ m, loosely branched above; lvs broadly lanceolate to lance-ovate or lance-oblong, serrate, 4-10 נ1.5-4 cm, on petioles 3-12 mm, the upper and bracteal ones canescent on both surfaces with short appressed hairs and some longer jointed bristles, the others glabrous above, hairy beneath; heads relatively loose, 1.5-3.5 cm wide; mature cal 4-6 mm, its lobes distinctly acuminate and tending to be tipped with 1-several bristles, the 2 lower 1.5-3 mm, more than half as long as the tube, the upper 3 much shorter; cor 4-5 mm, pink to purple; nutlets 1.2-1.5 mm, rugose or pitted, with dense straight or curled hairs at the top; 2n=72. Woods; Va. and W.Va. to Ga. and Ala., w. to w. Tenn. and s. Ill. (P. tullia; P. viridifolium)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.