Herbs perennial, erect, with short, fleshy basal soboles or leafy rosettes. Stems 15-100 cm tall, well-branched or rarely simple, densely strigillose throughout, with scattered glandular hairs on inflorescence, often subglabrous below, with inconspicuous lines decurrent from margins of petioles. Leaves subsessile above, lower ones with petioles 1-6 mm; cauline blade oblong-lanceolate to narrowly ovate, 2-7 × 0.4-1.7 cm, glabrous except for strigillose margin and veins, base cuneate or subrounded, margin serrulate with 20-41 teeth per side, apex subobtuse or acute. Inflorescence suberect before anthesis; flowers erect. Sepals 2.4-4 mm, sometimes keeled. Petals white, rarely pink or rose, 3-4.3(-5) mm. Stigma clavate to subcapitate, entire. Capsules 3-8 cm, strigillose or rarely glabrescent; pedicels 0.5-2 cm. Seeds brown, 0.8-1.2 mm, minutely papillose, with conspicuous chalazal collar 0.08-0.12 mm; coma white, detaching readily. Fl. Jul-Aug, fr. Aug-Sep. 2n = 36.
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