Stems (4-)5-14 dm. Cauline leaves petiolate (petiole 0.1-0.8 cm proximally, obsolete distally); blade usually linear-oblanceolate to oblanceolate or narrowly oblong, rarely linear, 1-4.5 cm × 1-6(-10) mm, base cuneate to attenuate, apex obtuse to subapiculate. Racemes 0.4-3 (-4) cm in fruit. Fruiting pedicels 4-10 mm. Flowers: sepals white, spreading or reflexed, 3-5 × 0.3-0.5 mm; petals white, broadly obovate to suborbicular, 4-6 mm, blade 2-3 × 2-3 mm, claw 2-3 mm, coarsely papillate to pubescent, margins crisped; filaments 5-7 mm; anthers 1-1.5 mm; gynophore slender, 3-6(-7) mm. Fruits 3-5(-6) cm × 1-1.5 mm; ovules 22-34 per ovary; style rarely to 0.5 mm. Seeds 1.2-1.8 × 0.8-1 mm. 2n = 24.
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