Flora of North America species comparison

usually not sheathed with marcescent whole leaves.

ascending to erect, (1–)1.5–5 dm.

ascending to erect, (0.5–)1–3 dm.

palmate.

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.

3–9, proximal ones 5–10(–14) cm;

proximal petioles 2–6(–8) cm, long hairs sparse to common, spreading to loosely appressed, 1.5–3 mm, soft to weak, short or crisped hairs abundant, cottony hairs mostly absent, glands sparse to common, usually obscured;

leaflets 5–7, central one usually ± oblanceolate, (1.5–)2–5 × 0.5–1.5 cm, margins flat or ± revolute, distal (1/2–)3/4+ usually evenly incised 1/2 to midvein, teeth 4–6(–10) per side, surfaces ± dissimilar, abaxial grayish to gray-green, long hairs sparse to common (especially on veins), 1–2.5 mm, soft to weak, short or crisped hairs ± abundant, sometimes sparse, cottony hairs absent, glands ± sparse (usually obscured), adaxial long hairs usually sparse, sometimes absent, 1–2 mm, short hairs absent or sparse, crisped and cottony hairs absent, glands absent or sparse.

1–3.

10–50+-flowered.

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

0.3–1.5(–3) cm.

(0.5–)1–2 cm, proximal to 3 cm.

epicalyx bractlets lanceolate or elliptic to oblong, 3–6 × 1–1.5 mm, length ± 1 times sepals;

sepals 3.5–6.5 mm, apex acute to acuminate;

petals 4–7(–8) × 4–5(–6) mm;

filaments 0.8–2.5 mm, anthers (0.5–)0.8–1.2 mm;

carpels 80–100+, styles 0.8–1.1 mm, scarcely papillate-swollen proximally.

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 mm, lightly rugose.

1.2 mm.

= 14, 28, 35, 42, 84 (Eurasia).