Flora of North America species comparison

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

ascending to erect, (1–)1.5–4 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.

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.

(1–)2;

blade reduced.

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

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

5–15 mm.

5–30 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.

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.

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

mottled grayish brown, 1.7–2 mm.

= 28.