Perennial, 1–8 dm, glabrous or inconspicuously hispidulous; basal lvs petiolate, often with broadly ovate to subrotund or cordate-rotund, angular-toothed blade to 2 cm, sometimes merely oblanceolate, often deciduous; cauline lvs ± numerous, commonly linear or nearly so, 1.5–8 cm, seldom 1 cm wide; fls typically several or rather many in a lax, racemiform or elongate-paniculiform infl, solitary in depauperate or subalpine specimens; cal-lobes 4–12 mm; cor blue, 1.5–3 cm, campanulate, the lobes much shorter than the tube; style not exceeding the cor; fr nodding, opening near the base; 2n=34, 56, 68, 102, etc. Dry woods, meadows, cliffs, and beaches; circumboreal, s. in Amer. to N.J., Ind., Io. and Mex. June–Sept.
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Perennial with slender rhizomes and weak puberulent or glabrous stems to
A herb. It grows 40 cm tall. It keeps growing from year to year.