Flora of North America species comparison

ascending to erect, 1–3(–3.5) dm.

ascending to erect, (0.5–)2–6(–7) dm, hairs spreading.

4–10(–12) × 1–2 cm;

leaflets 3–6(or 7) per side, narrowly obovate, 5–12(–15) × 4–8(–10) mm, 1/2–3/4 as wide as long, divided ± 1/4 to midrib into 5–10 oblong to broadly obovate teeth, sparsely pilose especially on midveins and margins.

± planar, (3–)6–20(–32) × 0.5–1.5(–2) cm;

stipules entire;

leaflets 7–16 per side, separate to ± overlapping especially distally, broadly cuneate to nearly round, (3–)4–15(–17) × (2–)5–12 mm, 3/4 to nearly as wide as long, divided 1/5–1/2 to midrib into (3–)8–15(–30) acute to obtuse teeth, often medially notched as well 1/3–2/3 to midrib, villous.

1–4.

3–5.

open, flowers arranged individually and in glomerules.

(3–)5–15 mm.

1–7(–20) mm.

15 mm diam.;

epicalyx bractlets linear-lanceolate to narrowly elliptic, 2–5 × 0.5–1.5 mm, ± 2/3 length of sepals;

hypanthium 0.6–1 × 2.5–4 mm, less than 1/3 as deep as wide;

sepals ± spreading to reflexed, lanceolate to narrowly elliptic, 3.5–6 mm;

petals elliptic to obovate, 4–7 × 3 mm, apex obtuse to rounded to truncate or slightly emarginate;

filaments 1–3 × 0.6–1.3 mm, anthers 0.6–1 mm;

carpels (17–)20–50;

styles 1.5–2.5 mm.

8–12 mm diam.;

epicalyx bractlets lanceolate to ovate, 1.5–4.5 × 1–2(–2.5) mm, 1/2–3/4 length of sepals, entire;

hypanthium 1.5–3 × 3–6.5 mm, less than 1/2 as deep as wide, interior sparsely pilose;

sepals spreading to ± reflexed, lanceolate, (3–)4–6.5 mm;

petals broadly oblanceolate-elliptic, 3–5.5 × 2–3 mm, apex truncate;

filaments 1–2 × 0.5–1 mm, anthers 0.8–1.2 mm;

carpels 20–60;

styles 2.5–3 mm.

grayish, 1.3–1.5 mm, finely reticulate.

brown, 1.5 mm, smooth.

= 28.