Flora of North America species comparison

usually pendent or prostrate to ascending, sometimes nearly erect, 0.2–1.5 dm.

prostrate-decumbent to ascending, 0.5–2(–3) dm.

± loosely cylindric to weakly planar, 1–7 cm; sheathing base sparsely strigose abaxially;

petiole 0.3–3 cm;

lateral leaflets (1–)5–8 per side, slightly overlapping, elliptic to flabellate, 2–6(–7) mm, incised nearly to base into (0–)2–4 oblanceolate to elliptic lobes, apex sometimes ± setose, surfaces loosely long-strigose, sparsely glandular;

terminal leaflets indistinct.

6–12(–15) cm; sheathing base weakly strigose abaxially;

stipules absent;

petiole (1–)1.5–2.5(–3) cm, hairs abundant, ascending to spreading, 1–4 mm;

leaflets 15–25 per side, loosely overlapping, (1.5–)2–7 mm, lobes 0–4(–6), lanceolate or oblanceolate to elliptic, hairs abundant, spreading to ascending, 1–3 mm.

(1–)2;

blade reduced.

2–5.

1–10(–15)-flowered, open, (0.5–)2–5 cm diam.

(7–)15–50-flowered, 2–8 cm diam., flowers arranged individually and/or in several to many loose few-flowered glomerules.

5–15 mm.

(3–)6–15(–22) mm.

7–10 mm diam.;

epicalyx bractlets 5, narrowly lanceolate, 1.5–3 mm;

hypanthium patelliform, 0.5–1 × 2–3 mm;

sepals 2–3.5 mm, acute;

petals white, obovate, 2–3.5 mm;

stamens 20, filaments 1.5–3 mm, anthers maroon, subrotund, 0.2–0.3 mm;

carpels 4–8, styles 1.5–1.8 mm.

8–13 mm diam.;

epicalyx bractlets lanceolate to elliptic, 2–3 mm;

hypanthium patelliform to shallowly cupulate, 1.5–2.5 × 3–4.5 mm, ± 1/2 as deep as wide;

sepals often purple-suffused, 2.3–4(–5) mm, acute;

petals white, broadly spatulate or obovate to orbiculate, (2.8–)3–5(–6) mm;

stamens 20, filaments filiform, (1–)1.5–3 mm, anthers light pink, 0.3–0.5 mm;

carpels 8–20, styles 2.2–3 mm.

greenish white to light tan, 1.5 mm, smooth to lightly rugose, ± carunculate.

light brown, 1.2–1.3 mm.