Flora of North America species comparison

usually stout, columnar, 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.

erect, (0.2–)0.3–0.8(–1) dm, lengths 2–4(–5) times basal leaves.

± 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.

1–3 cm;

petiole 0.5–2 cm, long hairs common to abundant, ascending to spreading, 0.5–1.5(–2) mm, soft to weak, smooth, short hairs absent, crisped/short-cottony hairs sparse to abundant, glands sparse to common;

leaflets separate to slightly overlapping, central obovate, 0.8–1.2(–1.5) × 0.5–1(–1.5) cm, sessile or subsessile, base cuneate, margins revolute, distal ± 1/2 incised (1/3–)1/2–3/4 to midvein, teeth 2–3 per side, ± approximate to distant, surfaces ± dissimilar, abaxial yellowish white or grayish, long hairs 1–2 mm, cottony-crisped hairs ± dense, adaxial green to yellowish gray, long(/short) hairs common to abundant, crisped hairs absent or sparse.

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.

0–1(–2).

solitary flowers at stolon nodes.

1–2(–3)-flowered.

(1–)2–5(–9) cm.

0.5–1.5 cm in flower, to 3.5 cm in fruit.

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 broadly ovate, 2.5–4(–5) × 1.5–3 mm, ± as wide as sepals, margins flat or revolute, red glands absent;

hypanthium 2–4 mm diam.;

sepals 2.5–5(–6) mm, apex subacute to acute;

petals 8–10 × 7–12 mm, significantly longer than sepals;

filaments 1–1.2 mm, anthers 0.4–0.6 mm;

carpels 30–40, apical hairs absent, styles narrowly columnar, distinctly papillate-swollen at very base, 1–1.1 mm.

1.2–1.4 mm, smooth.

1.1–1.5 mm.

erect, stout, 0.5–2 cm.

= 28.

= 42, 49, 56.