From Flora of Indiana (1940) by Charles C. Deam
This species has been reported from 10 other counties than those in which I have found it. Two authors report on its habitat and say: "In waste grounds." I have found it three times and each time in a cornfield where it was frequent to abundant. I have not been able to revisit any of these stations to learn whether it has persisted. Since it is rarely or no longer cultivated, I believe its spread will be limited.
Glabrous annual to 1.5 m; lvs ovate or lance-ovate, 1-2 dm, coarsely and unevenly toothed, long-petiolate; pedicels ca 1 cm, arising from the stem at the side of a petiole, at maturity recurved at the tip; sep broadly cordate-ovate, 1 cm at anthesis, 2-3 cm in fr; cor blue, 2-2.5 cm long and wide; 2n=20. Native of Peru; occasionally cult. for ornament and escaped along roadsides and in waste places throughout much of our range. July-Sept. (Physalodes p.)
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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