Herbs erect, perennial, with short leafy soboles and rhizome with dense, fibrous rootlets. Stems 13-100 cm tall, well-branched, sparsely strigillose throughout upper stem, glabrescent below with indistinct raised lines decurrent from margins of petioles. Leaves subleathery; petiole 2-5 mm; cauline blade lanceolate to narrowly ovate, 1.2-6.5 × 0.5-1.5 cm, glabrous with sparsely strigillose margin and veins, base cuneate or subrounded, margin serrulate with 15-35 teeth per side, apex acute or acuminate. Inflorescence and flowers suberect. Sepals 3.5-5 mm, keeled. Petals pink or rose-purple, rarely white, 5-8 mm. Stigma capitate or broadly clavate, entire. Capsules 4-8.8 cm, sparsely strigillose; pedicels 0.8-2.5 cm. Seeds brown, 1.1-1.3 mm, reticulate, with inconspicuous chalazal collar; coma dingy white, detaching easily. Fl. Jul-Sep, fr. Aug-Oct. 2n = 36.
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