Flora of North America species comparison

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

prostrate to decumbent, (0.5–)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–)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.

2–5.

(0–)1(–2).

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

1–6 mm.

3–15 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.

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.

light brown, 1.5 mm, smooth or slightly rugose.

tan, 1.8–2.2 mm, coarsely rugose.

= 28.