Flora of North America species comparison

ascending to erect, (1–)1.5–4 dm.

ascending to erect, 2–6 dm.

mousetail-like (individual leaflets scarcely distinguishable), 3–10 cm; sheathing base densely strigose abaxially;

petiole 0.5–1.5 cm;

leaflets 60–80 per side, 0.6–1.5 mm, lobes (0–)3–5, obovate to oval, densely villous.

6–25(–30) cm; sheathing base minutely glandular abaxially;

petiole 0.5–8(–10) cm;

leaflets 12–30 per side, obovate to broadly cuneate, 5–12(–15) mm, incised 1/3–1/2 to base into 3–5 oblong to ovate teeth, sometimes entire, sparsely short-strigose to -villous, sometimes glabrate.

(10–)30–200-flowered, 3–8(–30) cm diam.

(5–)8–60-flowered, 2–12 cm diam.

5–30 mm.

5–30(–35) mm.

5–8 mm diam.;

epicalyx bractlets oblong to broadly ovate or orbiculate, 0.2–0.5 mm;

hypanthium 0.5–1.5 × 2–3 mm;

sepals 1–2 mm, apex obtuse to acute;

petals white, broadly obovate to orbiculate, 2–2.5 mm;

stamens 15, filaments 1.2–1.8 mm, anthers purple, broadly obcordate to pouch-shaped, 0.3–0.4 mm;

carpels 1, styles 2–3 mm.

9–12 mm diam.;

epicalyx bractlets narrowly lanceolate to lanceolate, 1–2 mm;

hypanthium interior brick- to blood-red or golden, 0.5–1.5 × 3–5 mm;

sepals 3–4.5 mm, base brick- to blood-red adaxially, apex acute to acuminate;

petals brick- to blood-red, linear to oblanceolate or narrowly elliptic, 2–3.5 mm;

stamens 5, filaments 1.3–2 mm, anthers maroon, oblong, 0.6–0.9 mm;

carpels 1–5, styles 2–3 mm.

mottled grayish brown, 1.7–2 mm.

brown, 2–2.5 mm.

= 28.

= 28.