Flora of North America species comparison

stipules narrowly triangular, 1–2.5 mm;

petiole to 1/3 blade, adaxial groove hairy with minute, ± sinuous hairs;

blade lanceolate-ovate to ovate, unlobed, 3.5–10.5 × 1.5–4 cm, base rounded to cuneate, margins coarsely serrate in distal 2/3–3/4, apex acute to short-acuminate, ± pinnately veined, surfaces glabrate, nectary present abaxially on midvein near base.

stipules subulate to narrowly triangular, 3–14 mm;

petiole below inflorescence 1/2–1 1/2 blade, fine, curved hairs absent or obscured adaxially;

blade broadly to transversely ovate, 3–7-lobed, 6–20 × 6.5–22.5 cm below inflorescence, base deeply to shallowly cordate, lobes broadly triangular, margins subentire to coarsely crenate-dentate, apex broadly obtuse to long-acuminate, surfaces variably stellate-hairy, sometimes minutely so, nectary absent.

solitary flowers in axils of distal leaves.

solitary flowers, in axils of distal leaves or appearing subcorymbose by reduction of internodes and subtending leaves.

jointed at middle or distally, 7.5–15 cm;

involucellar bractlets 6–8, triangular, 0.06–0.18 cm, margins not ciliate.

obscurely to conspicuously jointed distally, 2–12 cm, stellate- and glandular-hairy;

involucellar bractlets (6 or)7–11(or 12), often deciduous after anthesis, linear-subulate to narrowly triangular, 0.8–2.2 cm, margins not ciliate, stellate- and glandular-hairy Flowers horizontal or ascending, sometimes double;

calyx divided 1/2–2/3 length, campanulate, 1.6–4 cm, lobes triangular, apices acute to acuminate, stellate- and glandular-hairy, nectaries absent;

corolla broadly campanulate to rotate, petals usually opening white, changing to deep pink over course of day, rarely pink and unchanging, often with deep pink spot near base, ± obovate, (2.5–)4–7.5 × 1.2–7.5 cm, apical margins repand, usually undulate, finely hairy abaxially where exposed in bud;

staminal column straight, white to pink, 1.4–2.6 cm, bearing filaments nearly throughout, free portions of filaments not secund, 2.5–5 mm;

pollen cream to yellowish orange;

styles white to pink, 3–16 mm;

stigmas pink or yellow, rarely white.

pendulous;

calyx divided 1/8–1/2 length, often 3-lobed, tubular to narrowly funnelform, (1–)1.4–2 cm, lobes broadly triangular, apices acute to obtuse, glabrate, neither accrescent nor inflated, nectaries absent;

petals strongly recurved, rose-pink to red, darker on veins, broadly to narrowly obovate, deeply and irregularly pinnatifid-laciniate, 4–6.5 × 1.5–3.5 cm, glabrous;

staminal column straight or curved apically, pendulous, pink to red, 5.5–9 cm, bearing filaments in distal 1/3–1/2, free portion of filaments not secund, 4.5–7.5 mm;

pollen yellow;

styles pink to red, 7–15 mm;

stigmas pink to red.

brown, oblong-cylindric, 3.5–4 cm, glabrous or puberulent.

brown, broadly ovoid or globose, 1–2.5 cm, apex impressed, strigose.

brown, angulately reniform-ovoid, 2–3 mm, smooth, glabrous or puberulent.

olivaceous to reddish brown or dark brown, reniform-ovoid, 2–2.8 mm, laterally glabrous, dorsally and dorsolaterally bearing long, straight, light brown to white, simple or 2- or 3-armed hairs.

= 34, 40, 42, 45 (all cultivars).

= 84, 88, 92, 100, 110, 120 (all cultivars).