Perennials; (caudex woody, to 6 mm diam.); densely puberulent. Stems several from base (caudex), erect or ascending to decumbent, branched distally, 0.5-2.3 dm. Basal leaves not rosulate; petiole 1-2.5 cm; blade oblanceolate (rarely with 1 or 2 lateral lobes), 1-3.5 cm × 3-7 mm, margins serrate-dentate. Cauline leaves shortly petiolate or sessile; blade narrowly oblanceolate to linear, 0.7-3.5 cm × 1-4 mm, base attenuate, not auriculate, margins entire or distally serrulate. Racemes elongated in fruit; rachis puberulent, trichomes curved, cylindrical. Fruiting pedicels divaricate to horizontal, slightly recurved, (terete), 2-4(-5.5) × 0.15-0.2 mm, densely puberulent throughout. Flowers: sepals oblong, 0.6-0.9 × 0.3-0.4 mm; petals (absent or rudimentary), white, oblanceolate, 0.3-0.6 × 0.1-0.2 mm, claw absent; stamens 2, median; filaments 0.6-0.7 mm; anthers 0.1-0.2 mm. Fruits elliptic, 2.4-2.8 × 1.6-2 mm, apically winged, apical notch 0.2-0.3 mm deep; valves thin, smooth, not veined, puberulent (at least along margin); style obsolete or to 0.1 mm, included in apical notch. Seeds oblong, 1.3-1.4 × 0.7-0.8 mm.
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