Flora of North America species comparison

ascending, 0.1–1.5(–2) dm.

subpinnate, 1.5–9 cm;

petiole 0.7–4 cm, long hairs common to dense, ± appressed to ascending, 0.5–3 mm, soft, short hairs absent, crisped hairs sparse to abundant, glands absent or sparse;

leaflets (1–)2(–3) per side, on distal 1/6–1/2 of leaf axis, separate to overlapping, terminal ones oblong or obovate, 0.4–3 × 0.2–1.2 cm, margins revolute, incised 2/3–3/4+ to midvein, undivided medial blade 2–6 mm wide, teeth 2–5 per side, linear to narrowly oblong, surfaces dissimilar, abaxial white, long hairs ± abundant, 1–2 mm, soft, short hairs absent or obscured, crisped and/or cottony hairs dense, glands absent or obscured, adaxial grayish white to dark grayish green, long hairs sparse to dense, loosely appressed to spreading, 0.5–2 mm, short hairs absent, crisped hairs absent or sparse, glands absent.

1–2.

(1–)2–5(–9)-flowered, ± open.

0.5–1 cm (proximal to 5 cm).

epicalyx bractlets oblong to ovate, 2–4(–6) × 0.8–1.3(–2) mm, lengths ± 3/4 times sepals, margins sometimes revolute;

hypanthium 2.5–4 mm diam.;

sepals 3–5 mm, apex obtuse to subacute, abaxial surfaces: venation indistinct, glands ± abundant, often obscured;

petals pale yellow, 4–5 × 2–3 mm, lengths 1.5 times sepals;

filaments 1–1.5 mm, anthers 0.4 mm;

carpels 30–60, styles papillate-swollen in proximal 1/4–1/3, 0.9–1.2 mm.

1.4–1.5 mm, smooth or rugose.

= 28.