Glands usually absent or inconspicuous, rarely conspicuous, uncolored. Stems decumbent to nearly erect, 1.5–4.5(–6) dm. Basal leaves sometimes 2-ranked, subpinnate to pinnate (proximal leaflets often doubled, distal leaflets confluent and/or decurrent), (4–)10–25 cm; petiole 1–10(–15) cm, long hairs absent or sparse to abundant, appressed, 1–1.5 mm, usually stiff, short, crisped, and cottony hairs usually absent, glands absent or (regionally) abundant; leaflets 5–9, on distal 1/10–1/2(–3/4) of leaf axis, separate to ± overlapping, largest ones obovate to cuneate, (1–)2–5 × (0.7–)1–3(–3.5) cm, margins flat, distal 1/2–3/4 unevenly, sometimes evenly, incised ± 1/2 to midvein (often with additional incisions nearly to midvein), undivided medial blade 3–15 mm wide, teeth 3–7 per side (sometimes secondarily toothed), linear to lanceolate, 3–10 mm, surfaces similar, green, not glaucous, long hairs nearly absent or sparse to common (sometimes restricted to abaxial veins), short, crisped, and cottony hairs usually absent, glands usually absent, sometimes regionally abundant. Cauline leaves 1–3. Inflorescences 3–15-flowered. Pedicels 1–3(–6.5) cm. Flowers: epicalyx bractlets lanceolate to narrowly elliptic, 3–5 × 1–1.6 mm, hairs usually sparse, appressed to ascending, glands usually absent, sometimes regionally sparse to common; hypanthium (3–)4–6(–7) mm diam.; sepals 5–10 mm, apex acute to acuminate; petals (6–)7–12 × 5–10 mm; filaments 2–3.5 mm, anthers 0.7–1 mm; carpels (20–)25–40, styles filiform above papillate-swollen base, 2–3 mm. Achenes 1.5–2 mm. 2n = 64, 92, 96, 98–108.
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