Flora of North America species comparison

ascending to erect, 0.4–2(–3.5) dm.

pendent or prostrate to ascending, 0.4–2.6(–3) dm.

loosely cylindric, (3–)4–12(–17) cm; sheathing base glabrous abaxially;

petiole 0.5–7 cm, hairs 1–1.5 mm;

leaflets 10–16 per side, 4–7(–10) mm, glabrous or sparsely hirsute, glandular-puberulent or -pubescent, lobes (2–)5–15, linear to narrowly oblanceolate, apex not setose.

planar, 2–15 cm; sheathing base not strigose abaxially;

petiole 3–9 cm;

lateral leaflets (1–)2–4(–7) per side, separate to slightly overlapping, obovate to orbiculate or flabellate, (3–)5–15(–22) mm, incised 1/4–3/4 to base into 5–15 broadly ovate teeth or oblanceolate lobes, sometimes also medially split to base (Kern Plateau), apex not setose, surfaces ± sparsely short-pilose, prominently glandular;

terminal leaflets ± distinct.

(0–)1–2, not paired.

1–2(–4);

blade well developed.

(5–)10–25(–35)-flowered, (1–)1.5–3(–4.5) cm diam.;

glomerules 1–few.

(1–)3–30(–60)-flowered, open, (0.5–)2–8 cm diam.

1–3(–5) mm.

(5–)10–30 mm.

9–12 mm diam.;

epicalyx bractlets linear, 1–2 mm;

hypanthium shallowly campanulate, 1–1.5 × 2–4(–5.5) mm;

sepals 2–3.5 mm, acute;

petals golden yellow, broadly elliptic to spatulate, 2.5–3.3 mm;

stamens 5, filaments 1–1.7 mm, anthers yellow, 0.5–0.8 mm;

carpels (2–)4–6(–9), styles 2–3 mm.

6–12 mm diam.;

epicalyx bractlets 5, broadly lanceolate to oblong, 1–2.5 mm;

hypanthium patelliform, 0.5–1.5 × 2–4(–4.5) mm;

sepals 2–4.5 mm, acute;

petals yellow, oblanceolate to obovate, (1.5–)2–4 mm;

stamens 15–35(–40), filaments 0.3–1 mm, anthers yellow, subrotund, 0.2–0.3(–0.5) mm;

carpels (3–)10–20(–40), styles 1–2 mm.

olive green, 1.8–2 mm.

greenish white to light tan, 1–1.8 mm, faintly rugose, ± carunculate.