Flora of North America species comparison

also with a line of simple, fine, curved hairs decurrent from leaf base and extending from node to node.

stipules narrowly triangular, (4–)5–10 mm;

petiole 1/2 to ± equaling blade, with fine curved hairs adaxially;

blade transversely to broadly ovate, 3(–5)-lobed or -parted, mostly 2–8.5 × 3–9 cm, base broadly cuneate to truncate or rounded or cordate, margins irregularly and sometimes doubly serrate or crenate-serrate, apex acute to short-acuminate, lobes narrowly elliptic to lanceolate, margins entire basally, coarsely serrate distally, surfaces scabridulous abaxially, less so adaxially, nectary present abaxially on midvein near base.

solitary flowers in axils of distal leaves.

obscurely jointed below apices, to 17.5 cm, usually exceeding subtending leaves, sometimes much elongated;

involucellar bractlets 8–12, linear-subulate, 1.5–2.5 cm, margins ciliate.

horizontal to ascending;

calyx neither accrescent nor inflated, it and involucel in fruit tinged basally with pink or purple, divided 4/5+ length, broadly campanulate, (1.4–)2–2.8 cm, equaling or usually exceeding involucel, lobes narrowly lanceolate-triangular, margins ciliate, apices attenuate, nectaries absent;

corolla rotate, petals cream [white], with maroon lines or spot basally, these sometimes faint or absent, asymmetrically obovate to broadly obovate, 3–4.5 × 1.8–2.6 cm, margins ± entire, sparingly hairy abaxially where exposed in bud;

staminal column straight, pale yellow or maroon, 1.1–1.5 cm, bearing filaments throughout, free portion of filaments not secund, 1.5–2.5 mm;

pollen yellow to orange-red;

styles white to maroon, 1–2 mm;

stigmas white to maroon.

dull yellow-green with darker medial stripe on each valve, ovoid to subglobose, 1–1.5 cm, much shorter than calyces, apex apiculate, glabrous.

dark brown, angulately reniform-ovoid, strongly depressed laterally, 2.5–3.5 mm, silky-hairy dorsally, glabrous laterally, with slightly raised pale yellow zone near hilum.

= 22 (Mexico: Sinaloa).