Flora of North America species comparison

usually absent or inconspicuous, uncolored.

initially erect to ascending to 5 dm, then arching above ground-level, becoming prostrate, flagelliform, not branched, rooting at distal nodes, (0.5–)1.5–12 dm.

ascending to erect, (0.5–)2–7(–12) dm.

persistent or ephemeral, usually palmate, 3.5–20 cm;

petiole 1–15 cm, long hairs ± abundant, appressed to spreading, (0.5–)1–3 mm, weak to ± stiff, glands absent or sparse, sometimes common;

leaflets 5(–7), central narrowly elliptic to obovate, 1.5–5 × 0.5–2.5 cm, distal 1/2–3/4 of margin incised 1/4–1/3 to midvein, teeth 4–8(–13) per side, surfaces similar to ± dissimilar, abaxial green to silvery white, sparsely to abundantly hairy, adaxial green, glabrate or sparsely to moderately hairy.

usually not in ranks, palmate, rarely subpalmate, 4–40(–55) cm;

petiole (2–)3–25(–45) cm, long hairs sparse to dense, appressed to spreading, 0.5–2(–3) mm, weak to stiff, short hairs absent, crisped hairs usually absent, cottony hairs absent or sparse to abundant (var. owyheensis), glands absent or sparse;

leaflets 5–9, on tip, rarely less than distal 1/10, of leaf axis, separate to overlapping, largest ones oblanceolate to elliptic or obovate, (1.5–)2–9(–11) × (0.7–)1.5–4 cm, margins flat to revolute, distal (2/3–)3/4 to nearly whole length evenly to unevenly incised 1/4–3/4+ to midvein, undivided medial blade 2–20 mm wide, teeth (4–)6–10(–11) per side (sometimes secondarily toothed), linear to broadly lanceolate, 2–20(–35) mm, surfaces ± similar to strongly dissimilar, abaxial green or pale green to white, usually not glaucous, long hairs sparse to abundant (sometimes mostly on veins), short-crisped hairs absent or sparse to abundant, cottony hairs absent or sparse to dense, glands usually absent or obscured to sparse, sometimes common, adaxial dark green to grayish, long hairs sparse to ± abundant, rarely absent or dense, short-crisped hairs absent or sparse, cottony hairs absent or sparse to abundant (var. owyheensis), glands usually absent or sparse to sometimes common.

(0–)1 proximal to 1st flowering node, well expanded at anthesis, usually palmate, 2.5–6(–9) cm;

petiole 0–2(–4) cm;

leaflets (3–)5, often more elongate than those of basal leaves, ± elliptic to oblanceolate, sometimes obovate, 1.5–6(–7.5) × 0.5–2(–3) cm, apex acute to obtuse.

1–4(–5).

solitary flowers at stolon nodes.

(4–)10–50(–60)-flowered.

1–5(–8.5) cm.

0.3–3 cm.

5(–6)-merous;

epicalyx bractlets linear to narrowly lanceolate, 2–5 × 1–1.5(–2) mm, often larger than sepals (especially in bud);

hypanthium 3–5 mm diam.;

sepals 4–6 mm, apex broadly acute;

petals 4–7 × 3–6 mm, apex rounded to ± retuse;

stamens ca. 20, filaments 0.5–2 mm, anthers 0.6–1 mm;

carpels 20–50, styles 0.8–1.5 mm.

epicalyx bractlets linear to narrowly lanceolate or elliptic, 2–6(–8) × 0.5–1.5(–2.5) mm, hairs sparse to abundant, rarely dense, ± appressed to ascending, rarely spreading, glands usually absent or inconspicuous;

hypanthium 3.5–6 mm diam.;

sepals 4–8(–10) mm, apex acute to long acuminate;

petals (3–)4–10(–11) × (3–)4–10(–12) mm;

filaments (1–)1.5–2.5(–3.5) mm, anthers 0.6–1.2(–1.6) mm;

carpels (15–)20–50, styles ± tapered, papillate-swollen proximally, (1–)1.5–2.5(–3) mm.

0.9–1.2 mm, faintly rugose.

1–1.8 mm.

horizontal, irregularly thickened or moniliform, 1–8 cm.