Flora of North America species comparison

erect, 2–6(–8) dm, hairs spreading.

prostrate to decumbent, (0.5–)1–2.5 dm.

planar, 4–13 × 2–3.5(–4) cm;

stipules entire or basally lobed;

leaflets 1–3 per side, separate, oblong to obovate, 10–30 × 5–12(–15) mm, ± 1/2 as wide as long, divided 1/6–1/4 to midrib into (15–)20–30 acute to obtuse teeth, sparsely short-pilose to glabrate, especially adaxially.

(3–)4–8(–10) × 0.8–1.8 cm;

leaflets (3 or)4–7 per side, narrowly to broadly obovate, 3–10 × 3–10 mm, ± as wide as long, divided 1/2–3/4 to midrib into 5–15 narrowly oblong teeth or lobes, pilose especially on midveins and margins.

4–7.

(0–)1(–2).

open, flowers arranged individually.

4–20(–30) mm.

3–15 mm.

12–17 mm diam.;

epicalyx bractlets broadly ovate, 3–4.5 × 2–3 mm, ± 2/3 length of sepals, entire;

hypanthium 1.5–2 × 5–8 mm, less than 1/2 as deep as wide, interior glabrous;

sepals ± reflexed, broadly ovate, 3.5–5.5 mm;

petals obovate to round, 5–7 × (3–)4–7 mm, apex ± rounded;

filaments 1–2 × 0.5–2 mm, anthers 0.8–1 mm;

carpels 50–80;

styles 1.5–3 mm.

5 mm diam.;

epicalyx bractlets lanceolate to ovate, 0.8–1.7 × 0.3–0.7 mm, 1/2–2/3 length of sepals;

hypanthium 1–1.5 × 1.5–3 mm, ± 1/2 as deep as wide;

sepals reflexed, broadly elliptic to broadly ovate, 1.7–2.5 mm;

petals oblanceolate to oblong, 2–3 × 1–2 mm, apex rounded;

filaments 0.5–1 × 0.3–0.8 mm, anthers 0.4–0.5 mm;

carpels 3 or 4;

styles 1–2 mm.

brown, 1.3–1.5 mm, smooth.

tan, 1.8–2.2 mm, coarsely rugose.