Flora of North America species comparison

not sheathed with marcescent whole leaves.

prostrate to ascending, (0.3–)0.8–2(–3.5) dm, lengths (1–)1.5–3 times basal leaves.

decumbent to ascending, 0.5–2(–2.5) dm.

pinnate with distal leaflets ± distinct, (1.5–)2–10(–13) × 0.7–3.5(–5) cm;

petiole 0.5–3.5(–5) cm, straight hairs sparse to abundant, sometimes absent (var. decurrens), ± appressed to ascending, 1 mm, ± stiff, cottony hairs absent, glands sparse, often obscured;

primary lateral leaflets 3–6 per side (often with additional interspersed leaflets), on distal 1/2–2/3(–3/4) of leaf axis, ± separate to ± overlapping, largest ones narrowly cuneate-oblanceolate to ± obovate, (0.3–)0.5–2(–3.5) × (0.2–)0.3–0.8(–1) cm, distal 1/4 to whole margin unevenly to pinnately (at least distal leaflets of var. ovina) incised 1/2–3/4+ to midvein, ultimate teeth 2–9(–11), linear or oblong to ovate, 1–7(–9) × 1–2 mm, apical tufts 0.5–2 mm, surfaces green to grayish, not glaucous, straight hairs sparse to abundant (sparser adaxially), sometimes absent (except on margins), loosely appressed, 0.5–2 mm, ± stiff, cottony hairs absent, crisped hairs sometimes sparse to common, glands absent or inconspicuous.

subpalmate, (2–)3–8 cm;

petiole 1–4 cm, long hairs sparse to abundant, ascending to spreading, 0.5–2.5 mm, weak to ± stiff, scarcely to ± verrucose, short-crisped hairs abundant, cottony hairs absent, glands sparse to common;

leaflets (3–)5(–7), proximalmost separated by 1–5 mm, central narrowly obovate-elliptic, (1–)1.5–2.5(–3) × 0.8–1.5 cm, petiolules 0–1 mm, distal 3/4 to whole margin incised 2/3–3/4 to midvein, teeth 5–7 per side, (2–)3–6 mm, apical tufts 0.5–1 mm, abaxial surfaces grayish white to white, long hairs abundant, cottony-crisped hairs usually dense, short hairs and glands absent or sparse, adaxial grayish green, long hairs common to abundant, 1–2 mm, ± stiff, short-crisped hairs abundant, cottony hairs absent, glands sparse to common.

1–2.

1–2.

(1–)2–11(–20)-flowered, usually openly cymose.

(3–)5–10-flowered, congested or ± elongating in fruit, branch angle 10–30°.

(0.8–)1–2(–4) cm, straight to ± recurved in fruit.

0.2–1 cm, proximal to 1.5 cm.

epicalyx bractlets linear-lanceolate to narrowly elliptic, sometimes doubled, 2–3.5(–5) × 1 mm;

hypanthium 3–5 mm diam.;

sepals 3.5–5.5(–7) mm, apex acute to obtuse;

petals 4–7(–8) × 3.5–8 mm;

filaments 1–2.5 mm, anthers 0.4–1 mm usually ± 1/2 as long as filaments;

carpels 10–20, styles 2–3 mm.

epicalyx bractlets ± lanceolate, (2–)3–5(–6) × 0.5–1.5 mm;

hypanthium 3.5–5 mm diam.;

sepals 4–6 mm, apex narrowly acute, glands ± common, only partly obscured;

petals yellow, ± overlapping, (4–)5–6 × 4.5–5.5 mm, longer than sepals;

filaments 0.5–2 mm, anthers 0.7 mm;

carpels 50–70, styles 1.2–1.5 mm.

1.5–2 mm, smooth, not carunculate.

1.3 mm.