Flora of North America species comparison

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

decumbent to erect, 0.3–1.8(–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.

2–8(–10) × 0.5–1.3 cm;

leaflets 4–6(–10) per side, overlapping, cuneate to flabellate, 3–8 mm, divided 3/4+ to midrib into (3–)5–8 oblong to obovate or oblanceolate lobes, villous to pilose at least marginally or apically.

2–5.

1 or 2.

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

1–6 mm.

2–7 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, 8–10 mm diam.;

epicalyx bractlets linear-lanceolate, 1–2.5(–3) × 0.3–0.5(–0.8) mm, ± 2/3 length of sepals;

hypanthium 1–1.5 × 2.5–4.5 mm, nearly 1/2 as deep as wide, interior sparsely pilose;

sepals spreading to reflexed, broadly lanceolate, (2–)3–4.5(–5) mm, hairs stiff, 0.5–1 mm;

petals not pink-tinged, narrowly oblanceolate to narrowly oblong, 2–4 mm, apex rounded to truncate, often slightly mucronate;

filaments white, 1–2 × 0.3–0.5 mm, usually glabrous, rarely sparsely pilose, anthers 0.6–0.8 mm;

carpels 5–12;

styles 1.5–2 mm.

light brown, 1.5 mm, smooth or slightly rugose.

light brown to brown, 2–2.5 mm.

= 28.