Plants tufted to matted, ± grayish green. Stems ascending to erect, (0.5–)2–6(–7) dm, hairs spreading. Basal leaves ± planar, (3–)6–20(–32) × 0.5–1.5(–2) cm; stipules entire; leaflets 7–16 per side, separate to ± overlapping especially distally, broadly cuneate to nearly round, (3–)4–15(–17) × (2–)5–12 mm, 3/4 to nearly as wide as long, divided 1/5–1/2 to midrib into (3–)8–15(–30) acute to obtuse teeth, ?often medially notched as well 1/3–2/3 to midrib?, villous. Cauline leaves 3–5. Inflorescences open, flowers arranged individually and in glomerules. Pedicels 1–7(–20) mm. Flowers 8–12 mm diam.; epicalyx bractlets lanceolate to ovate, 1.5–4.5 × 1–2(–2.5) mm, 1/2–3/4 length of sepals, entire; hypanthium 1.5–3 × 3–6.5 mm, less than 1/2 as deep as wide, interior sparsely pilose; sepals spreading to ± reflexed, lanceolate, (3–)4–6.5 mm; petals broadly oblanceolate-elliptic, 3–5.5 × 2–3 mm, apex truncate; filaments 1–2 × 0.5–1 mm, anthers 0.8–1.2 mm; carpels 20–60; styles 2.5–3 mm. Achenes brown, 1.5 mm, smooth.
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