Herbs perennial, erect, with short leafy soboles or rarely short filiform stolons with scattered cataphylls. Stems 7-50(-80) cm tall, simple to densely branched, densely strigillose throughout, mixed with glandular hairs on inflorescence, often subglabrous below, lacking raised lines. Leaves sessile or lower ones with petioles to 2 mm; cauline blade lanceolate-elliptic to lanceolate-oblong, 2-7 × 0.3-1.7 cm, sparsely strigillose adaxially and on abaxial veins, base cuneate or subrounded, margin subentire, apex acute or obtuse. Inflorescence and flowers erect. Sepals 2.5-3.3 mm, slightly keeled. Petals white, 3-4(-4.7) mm. Stigma subcapitate to clavate, entire. Capsules 1.7-7 cm, strigillose, sparsely glandular; pedicels 0.9-2.1 cm. Seeds brown, 0.9-1.3 mm, minutely papillose, with inconspicuous chalazal collar; coma tawny, persistent. Fl. Jul-Aug, fr. Aug-Sep. 2n = 36*.