Flora of North America species comparison

pendent or prostrate to ascending, (0.2–)0.5–1.6(–3) dm.

ascending to erect, (1.8–)2–6(–6.5) dm.

planar, 2–15(–20) cm; sheathing base usually not strigose abaxially;

petiole 3–10 cm;

lateral leaflets (2–)3–4(–5) per side, separate, broadly ovate or obovate to orbiculate, (2–)5–15(–18) mm, incised 1/4–3/4 to base into (3–)7–11 ± ovate teeth, apex not setose, surfaces ± sparsely short-pilose, ± glandular;

terminal leaflets ± distinct.

7–25(–30) cm; sheathing base usually sparsely strigose abaxially;

petiole 1–4(–5) cm;

leaflets 15–40 per side, ± flabellate, 3–14 mm, usually incised to base into 2–3 oblanceolate lobes, ± densely short-hirsute to -villous.

1–3;

blade well developed.

(1–)5–30(–150)-flowered, open, 0.5–14 cm diam.

10–60-flowered, 4–15 cm diam.

5–30 mm.

(1–)5–20 mm.

6–12 mm diam.;

epicalyx bractlets 0(–3), lanceolate, 0.9–1.8 mm;

hypanthium turbinate or campanulate, 1.5–3(–5) × 1–3(–4) mm;

sepals 2–4(–5) mm, acute;

petals yellow or white, oblanceolate to elliptic or obovate, (1.6–)2–4 mm;

stamens 5, filaments 0.8–1.3 mm, anthers ± yellow, oblong to narrowly ovate, 0.6–1.5 mm;

carpels (2–)6–10(–13), atop a stipelike torus, styles 0.9–1.8 mm.

9–14 mm diam.;

epicalyx bractlets lanceolate, 1–3(–3.3) mm;

hypanthium interior golden, 1–2 × 3–5 mm;

sepals (2.5–)3.5–6 mm, base golden adaxially, apex acute to acuminate;

petals yellow, linear to narrowly oblanceolate, 2–4 mm;

stamens 5, filaments 2–4 mm, anthers yellow, sometimes red-rimmed, oblong, 0.6–1.2 mm;

carpels 1–5, styles 2–3 mm.

greenish white to light tan, 1.2–2 mm, faintly rugose, ± carunculate.

brown, 1.7–2.2 mm.