Flora of North America species comparison

stout, sometimes ± columnar, not sheathed with marcescent whole leaves.

ascending to erect, (0.2–)0.4–1.6(–2) dm, lengths 2–3 times basal leaves.

1–6(–11) cm;

petiole 0.5–4(–9) cm, long hairs ± abundant, ascending to spreading, sometimes loosely appressed, 1–2.5 mm, soft to weak, smooth, crisped(/cottony) hairs absent or sparse, sometimes common, glands absent or sparse;

leaflets overlapping, central broadly obovate, 0.8–2(–2.5) × 0.8–1.5(–2.5) cm, sessile or subsessile, base broadly cuneate, margins strongly revolute, distal 1/2–2/3 incised ± 1/2 to midvein, teeth 2–3(–4) per side, distant, surfaces strongly dissimilar, abaxial grayish white, long hairs 1–2 mm, cottony-crisped hairs ± dense, adaxial usually dark green, sometimes grayish green, long hairs sparse to abundant, other hairs usually absent.

(0–)1–2(–3).

1–2(–5)-flowered.

1–2 cm in flower, to 5 cm in fruit.

epicalyx bractlets ± oblong to ovate, 4–8(–10) × 1.8–3(–5) mm, 2/3 to as wide as sepals, margins revolute, sometimes flat, red glands absent;

hypanthium 3.5–4.5 mm diam.;

sepals 5–8 mm, apex ± acute;

petals 7–9 × 7–10 mm, longer than sepals;

filaments 0.8–1 mm, anthers 0.6–0.7 mm;

carpels 20–30, apical hairs sparse to abundant (straight), styles conic-columnar, ± papillate-swollen in less than proximal 1/5, or sometimes to 1/5, 0.8–1.1 mm.

0.9–1.2 mm.

= 28 (Russian Far East).