Flora of North America species comparison

ascending to erect, 1–2.5 dm.

decumbent to erect, (1–)2–6(–7.5) dm, hairs ascending to appressed, sometimes spreading.

3–10 × 0.4–0.8 cm;

leaflets (6–)10–14 per side, ± overlapping at least distally, cuneate to flabellate, 2.5–4(–6) mm, divided 3/4+ to midrib into 3–6 oblanceolate to obovate lobes, hispid.

planar, (5–)10–30 × 1.5–4(–5) cm;

stipules entire or basally lobed;

leaflets 5–12 per side, separate to slightly overlapping, ± elliptic to obovate or oblanceolate, 5–25(–30) × 5–15(–25) mm, ± 1/2 to nearly as wide as long, divided less than 1/3 to midrib into (5–)10–15 oblanceolate to obovate teeth, sparsely pilose to glabrate or sericeous.

3–7.

1–3(–5).

± open to congested, flowers arranged individually and/or in glomerules.

2–8(–12) mm.

1–30(–40) mm.

3–15, 10 mm diam.;

epicalyx bractlets linear to lanceolate, 1.5–3 × 0.2–0.5 mm, ± 2/3 length of sepals;

hypanthium 1.8–3 × 3–4 mm, ± 1/2 as deep as wide, interior sparsely pilose;

sepals reflexed, broadly lanceolate, 2.5–4(–5) mm, hairs stiff, 0.5 mm;

petals not pink-tinged, oblanceolate to oblong or narrowly elliptic, 2.5–5 mm, apex rounded to truncate, sometimes slightly emarginate or mucronate;

filaments white, 0.5–2 × 0.4–0.6 mm, glabrous or sparsely pilose adaxially, anthers 0.5–0.9 mm;

carpels (10–)12–18(–20);

styles 1.8–2.2 mm.

12–17 mm diam.;

epicalyx bractlets lanceolate to ovate, 3–5 × 1.5–3 mm, 2/3–3/4 length of sepals, entire;

hypanthium 1.5–2 × 4–7 mm, less than 1/2 as deep as wide, interior glabrous or pilose in a narrow ring;

sepals ± reflexed to spreading, lanceolate, 4–6.5 mm;

petals oblanceolate to narrowly obovate, 4–8 × 1.5–4 mm, apex obtuse to rounded;

filaments 1–3 × 0.5–2 mm, anthers 0.7–1.1 mm;

carpels (30–)40–60(–80);

styles 2–3 mm.

brown to dark brown, 1.5–2 mm.

brown, 1.5–1.8 mm, smooth or minutely rugose.