Flora of North America species comparison

ascending to erect, 1–2.5 dm.

ascending to erect, 1.5–3.5 dm, hairs 2–3 mm proximally, glands sparse to dense distally.

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.

weakly planar to loosely cylindric, (4–)5–12(–17) × 0.8–3(–4) cm, usually sericeous to villous, sometimes glabrate;

stipules pinnately divided into 3–7 linear to filiform lobes;

leaflets 5–10 per side, ± overlapping, obovate to broadly obcordate, 5–15(–25) × 5–20 mm, ± as wide as long, divided 3/4+ to midrib into (0–)2–15 linear to oblanceolate lobes 0.4–2(–3) mm wide, these not restricted to apex.

3–7.

3–6;

stipules 8–15 mm, deeply 3–7-lobed proximally, 1–3-lobed distally.

open to ± congested, flowers arranged individually or in ± corymbiform clusters.

2–8(–12) mm.

2–10(–20) 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.

10–15 mm diam.;

epicalyx bractlets linear to linear-lanceolate, 2.5–3.5 × 0.5 mm, 2/3 to ± equal to length of sepals;

hypanthium 1–1.5 × 3.5–5 mm, less than 1/2 as deep as wide, interior glabrous;

sepals ± spreading, abaxially green, 3.5–7.5 mm;

petals white to cream, often drying yellowish, cuneate to obcordate, (3.5–)4–8 × 2–8 mm, apex ± emarginate, sometimes rounded;

filaments 1–3 × 0.5–1.5 mm, anthers 0.5–0.8 mm;

carpels 5–15, styles 2–4 mm.

brown to dark brown, 1.5–2 mm.

dark brown, 2.4–3 mm, smooth to ± roughened.