Flora of North America species comparison

ascending to erect, 1–4 dm, hairs ± spreading.

ascending to erect, 1–2.5 dm.

weakly planar to ± cylindric, 5–15(–20) × 0.5–1.5 cm;

stipules entire;

leaflets 8–16(–20) per side, ± overlapping especially distally, cuneate to flabellate, 3–10 × 2–10 mm, 1/2 to nearly as wide as long, divided 1/2–3/4+ to midrib into 3–8 linear to narrowly oblanceolate or narrowly elliptic lobes, sparsely villous at least marginally, often with a tuft of hairs apically.

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.

2–5.

3–7.

open to congested, flowers arranged individually and in glomerules, these sometimes subcapitate.

1–6 mm.

2–8(–12) mm.

10 mm diam.;

epicalyx bractlets narrowly to broadly lanceolate, 1–3 × 0.5–1 mm, slightly shorter than sepals, entire;

hypanthium 1–1.2 × 2.5–4.5 mm, less than 1/2 as deep as wide, interior pilose;

sepals spreading to reflexed, lanceolate, 3–5 mm;

petals oblanceolate, 2.5–4.5 × 1.5 mm, apex emarginate;

filaments (1–)1.5–2 × 0.5 mm, anthers 0.4–0.6 mm;

carpels 10–25;

styles 1.8–2.2 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.

light brown, 1.5 mm, smooth or slightly rugose.

brown to dark brown, 1.5–2 mm.

= 28.