Flora of North America species comparison

decumbent to ascending, 1–3.5 dm.

pendent or prostrate to ascending, 0.5–2(–2.5) dm.

(4–)7–15 cm; sheathing base ± glabrous abaxially;

stipules linear, 3–6 mm;

petiole (0.3–)0.5–4(–5) cm, hairs sparse to abundant, ascending to spreading, 1–2 mm;

leaflets 15–20(–25) per side, loosely overlapping, 3–6 mm, lobes 3–8, linear to oblanceolate, hairs sparse to abundant, spreading, 1–2 mm.

planar, 3–12(–18) cm; sheathing base not or sparsely strigose abaxially;

petiole 1–8 cm;

lateral leaflets 2–6(–10) per side, separate to slightly overlapping distally, ovate or obovate to flabellate, 4–15(–25) mm, incised 1/4–3/4 to base into 3–11(–15) ovate to oblanceolate teeth or lobes, apex not setose, surfaces ± sparsely short-pilose or hirsute, ± glandular;

terminal leaflets ± distinct.

3–6.

1–2;

blade reduced.

(15–)30–100(–200)-flowered, (1–)1.5–4(–8) cm diam., flowers mostly arranged in 1–several loose to tight glomerules of 5–10 flowers.

(1–)5–40-flowered, open, (1–)1.5–8(–10) cm diam.

1–3 mm.

2–15(–30) mm.

6–9 mm diam.;

epicalyx bractlets linear or narrowly lanceolate to elliptic or narrowly oblong, 1.2–2(–3) mm;

hypanthium shallowly turbinate, 1.5–2.5 × 2–3(–3.5) mm, often nearly as deep as wide;

sepals heavily purple-mottled, (1.5–)2–3(–3.5) mm, acute;

petals white, often tinged with pink, oblanceolate to spatulate or obovate, 3–4 mm;

stamens 10–15, filaments filiform, 0.6–1.1 mm, anthers maroon, 0.3–0.5 mm;

carpels (1–)3–9, styles 1.4–2 mm.

4–10 mm diam.;

epicalyx bractlets 5, narrowly lanceolate to ovate, 0.8–2.5 mm;

hypanthium patelliform, 0.5–2 × 2–4 mm;

sepals (1.2–)1.5–4 mm, acute;

petals white or pale yellow, oblanceolate to narrowly spatulate, 1.5–2.5 mm;

stamens 5, filaments 0.5–1.1 mm, anthers yellow, sometimes with reddish margins, oblong, 0.4–0.7 mm;

carpels (1–)3–8, styles 0.9–1.8 mm.

light brown, 1.2–1.5 mm.

greenish white to light tan, 1.5–2 mm, smooth or rugose, ± carunculate.