Flora of North America species comparison

usually not sheathed with marcescent whole leaves.

initially ascending to erect, soon becoming prostrate, flagelliform, not branched, eventually rooting at some nodes, (0.3–)0.5–12 dm.

ascending to erect, (0.5–)1–3 dm.

± persistent, usually palmate, 2–9(–11) cm;

petiole 1–7(–8) cm, long hairs abundant to dense, appressed to spreading, 1.5–3 mm, mostly ± weak, glands absent or sparse;

leaflets (3–)5(–7), central mostly ± obovate to cuneate, sometimes narrowly so, (0.5–)1–4(–6) × (0.5–)0.8–2(–3) cm, distal 1/2 of margin incised 1/4–1/3 to midvein, teeth 2–7 per side, surfaces similar to ± dissimilar, abaxial green to silvery white, sparsely to densely hairy, adaxial green, sparsely to moderately hairy.

often both ternate and palmate on same plant, sometimes subpalmate, 4–10 cm;

petiole 2.5–8 cm, long hairs common to abundant, loosely appressed to ascending-spreading, 1–2 mm, weak to ± stiff, ± verrucose, short and/or crisped hairs sparse to abundant, cottony hairs absent, glands sparse to common;

leaflets 3–5, proximalmost separated by 0(–2) mm, central oblong to obovate, 1.4–2.5(–5) × 0.6–1.3(–2) cm, petiolules 1–3(–5) mm, distal 2/3–3/4 of margin incised 1/2–3/4+ to midvein, teeth 3–5 per side, 3.5–6 mm, apical tufts 0.5–1 mm, abaxial surfaces grayish white to white, long hairs common to abundant, cottony-crisped hairs usually dense, short hairs and glands absent or obscured, adaxial green to grayish green, long hairs sparse to common, 0.5–1(–1.5) mm, ± stiff, short and/or crisped hairs sparse to common, sometimes abundant, cottony hairs absent, glands sparse to abundant.

0–1 proximal to 1st flowering node, not fully expanded at anthesis, usually palmate, 2–7(–9) cm;

petiole (0.5–)1–6(–7.5) cm;

leaflets (3–)5, ± resembling those of basal leaves, apex rounded to obtuse.

1–3.

solitary flowers at stolon nodes.

7–12(–20)-flowered, ± open, branch angle 5–30(–50)°.

(1–)2–5(–9) cm.

(0.5–)1–2 cm, proximal to 3 cm.

5-merous;

epicalyx bractlets linear to lanceolate-elliptic, (2–)3–5(–6) × 0.8–1.5 mm, slightly smaller than to ± equal to sepals;

hypanthium 2.5–5 mm diam.;

sepals (2–)3–5(–6) mm, apex acute;

petals 4–6(–8) × 3.5–6.5(–8) mm, apex rounded to slightly retuse;

stamens ca. 20, filaments 0.5–2 mm, anthers 0.4–1 mm;

carpels 20–40, styles 0.8–1.4 mm.

epicalyx bractlets linear to narrowly lanceolate, 2–3.5 × 0.6–1 mm;

hypanthium 2.5–3.5 mm diam.;

sepals 2.5–4 mm, apex subacute to acute, glands ± common, usually not obscured;

petals pale yellow, not overlapping, 3–5(–6) × 3–4(–5) mm, slightly longer than sepals;

filaments 0.8–1.8 mm, anthers 0.4 mm;

carpels 30–60, styles 0.7–0.9 mm.

1.2–1.4 mm, smooth.

1.2 mm.

erect, stout, 0.5–2 cm.

= 28.