Plants matted, green to grayish. Stems ± decumbent to ascending, 1–3.5(–4.5) dm, hairs spreading to ascending. Basal leaves ± planar to nearly cylindric, 4–12(–15) × 1–2.5(–3) cm; stipules entire or basally lobed; leaflets 5–10(–12) per side, ± overlapping especially distally, cuneate, 7–12 × 5–10 mm, nearly as wide as long, divided 1/3–1/2 to midrib into (3–)5–10 acute to obtuse teeth, villous. Cauline leaves 3–5. Inflorescences usually congested, flowers usually arranged in dense corymbiform clusters. Pedicels 1–6 mm. Flowers 10–15 mm diam.; epicalyx bractlets lanceolate, 2.5–4.5 × 1 mm, ± 2/3 length of sepals, entire; hypanthium 1.2–1.5 × 4–5 mm, less than 1/2 as deep as wide, interior pilose; sepals ± reflexed, lanceolate, 3–6 mm; petals narrowly oblanceolate to narrowly oblong, 4–7 × 2 mm, apex obtuse to rounded, rarely truncate; filaments 1–2.8 × 0.2–0.6 mm, anthers 0.6–0.9 mm; carpels 20–30; styles 2–4 mm. Achenes brown, 1.5–2 mm, smooth to slightly rugose. 2n = 56.
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