Flora of North America species comparison

prostrate to decumbent, not flagelliform, not rooting at nodes, lateral to weakly persistent or ephemeral basal rosettes, (0.2–)0.5–4(–6) dm, lengths (1–)1.5–5 times basal leaves.

basal not in ranks;

cauline leaves 1–4;

primary leaves ± pinnate (with distal leaflets confluent), sometimes ± bipinnate, 2–9 cm;

petiole: long hairs ± spreading, weak to ± stiff, glands ± abundant;

leaflets (5–)7–15(–21) (or appearing more because of deep lobes), on distal 1/3–2/3 of leaf axis, overlapping, obovate or elliptic to flabellate, margins flat, ± whole length irregularly incised 1/2 to completely to midvein (proximal leaflets sometimes pinnately so), sometimes entire (especially distal leaflets), teeth (or lobes) 0–4 per side, surfaces similar, grayish green, not glaucous, long hairs ± stiff, cottony and/or crisped hairs absent.

petiole 1–3.5 cm, long hairs ± abundant, 0.5–1.5 mm, short hairs absent or sparse, rarely common;

leaflets 0.2–1 cm, lobes oblanceolate to narrowly elliptic, (0.5–)1–2 mm wide, longs hairs ± abundant, short hairs absent or sparse, glands sparse to abundant.

(2–)6–50(–100+)-flowered, irregularly cymose, sometimes racemiform, ± open.

recurved in fruit, 0.7–2(–2.5) cm, proximal not much longer than distal.

epicalyx bractlets broadly lanceolate to elliptic, 1.5–4(–5) × (0.4–)0.8–1.3 mm;

sepals 2–4(–5) mm, apex ± acute;

petals (3–)4–6 × (2–)3–5 mm;

filaments 1–2(–2.5) mm, anthers 0.4–0.6 mm;

carpels 20–50.

5-merous;

hypanthium 2.5–4.5 mm diam.;

petals white, broadly obovate to obcordate or nearly round, (3–)4–6 mm, longer than sepals, apex usually ± retuse;

stamens ca. 20;

styles subapical, filiform-tapered, papillate-swollen in proximal 1/5–1/3(–1/2), 0.8–2 mm.

0.9–1.2 mm.

rugose.