Flora of North America species comparison

stellate hairs of younger stems dense, appressed, 4-armed, arms approximate in pairs, aligned with stem axis, lines of fine, curved hairs absent or obscured;

older growth grayish, rough, glabrescent.

often glaucous.

stipules linear-subulate, 3–10 mm;

petiole primarily in distal 1/2, sometimes themselves shallowly pinnately lobed, surfaces scabridulous, hairs appressed-stellate, obscure nectary present abaxially on midvein near base.

stipules caducous, linear-subulate, 2–10 mm;

petiole 1/2 to somewhat exceeding blade;

blade narrowly to broadly ovate or triangular- or lanceolate-ovate, usually hastately 3(–5)-lobed, sometimes unlobed, 6–18 × 3–16 cm, base cordate to truncate, lobes, especially middle one, ovate to triangular, to 3 times as long as wide, margins crenate-serrate to serrate or serrate-dentate, apex acuminate to long-acuminate, surfaces glabrous, nectary absent.

solitary flowers in axils of distal leaves.

solitary flowers in axils of distal leaves.

jointed below apices, to 17 cm, usually much exceeding subtending leaves;

involucellar bractlets 8–14, linear-subulate, 1–2 cm, margins ciliate.

jointed distally, 1–10 cm, 1/3 to slightly exceeding subtending petioles;

involucellar bractlets (8 or)9–15(or 16), linear-subulate, 1–3 cm, margins not ciliate.

erect or ascending;

calyx divided 3/4+ length, funnelform, 1.4–2.2 cm, equaling or slightly exceeding involucel, lobes narrowly lanceolate-triangular, margins ciliate, apices attenuate, nectaries absent;

corolla rotate, petals yellow to cream, usually with dark to obscure maroon lines basally, asymmetrically obovate to broadly obovate, 1.6–4 × 1–3.5 cm, margins ± entire, sparingly hairy abaxially where exposed in bud;

staminal column straight, yellow or cream, 0.6–1.4 cm, bearing filaments throughout, free portion of filaments not secund, 1–3 mm;

pollen yellow-orange;

styles cream, 1.5–5 mm;

stigmas maroon or cream.

horizontal;

calyx divided 1/3–1/2 length, broadly cylindric-campanulate, 2.5–3 cm, conspicuously larger in fruit, lobes broadly triangular, apices acute, surfaces glabrous, nectaries absent;

corolla broadly funnelform, petals pink to white, red basally, obovate, 5–8 × 2–5 cm, apical margins entire to repand, finely hairy abaxially where exposed in bud;

staminal column straight, pale pink to white, 2.5–4 cm, ca. 1/2 as long as petals, bearing filaments nearly throughout, free portion of filaments not secund, 2–4 mm;

pollen pale pink to white;

styles pale pink to white, 5–12 mm;

stigmas pink.

pale olivaceous gray with darker median stripe on each valve, ovoid or ellipsoid, 0.7–1.7 cm, to 2/3 calyces, apex rounded, hairy near apex or glabrous throughout.

brown, ovoid, 1.8–3 cm, apex truncate, apiculate, glabrous.

dark brown, angulately reniform-ovoid, 2.4–3 mm, silky-hairy ± throughout.

reddish brown to brown, reniform-globose, 3–5 mm, hairy, hairs reddish.

= 38.