Flora of North America species comparison

suberect to decumbent, with patent or retrorse, simple hairs, hairs 1 mm.

petiole 1/2 times to equaling blade, hispid;

blade concolorous, often with purple blotch along midvein, ovate, triangular, hastate, or sometimes palmately lobed, mostly 3–9 cm, membranous, base cordate, wide-rounded, or truncate, margins crenate to subentire, apex acute, surfaces sparsely hairy, hairs mostly simple, appressed, 1 mm.

petiole commonly 1/4 length of blade (longer on juvenile leaves), minutely stellate-hairy, hairs to 0.1 mm;

blade markedly discolorous, highly variable in form and size, often narrowly oblong or linear, usually 1.5+ cm, coriaceous, base sometimes hastate, margins usually entire, apex acute, surfaces ± tomentulose.

solitary flowers.

panicles.

4–12 cm, often exceeding leaf.

1.5–3.5 cm.

calyx 5–10 mm, accrescent to 12–20 mm, lobes without dark midrib, apex acute, hispid;

petals purplish or lavender, rarely white, drying purplish, sometimes bluish, 8–26(–30) mm;

staminal column hairy;

style 10–19-branched;

stigmas glabrous.

calyx 3–5 mm, lobes with dark midribs, apex acute, minutely hairy;

petals pale yellow, sometimes fading reddish, 10 mm;

staminal column apically scabrid, otherwise glabrous;

style 5–8-branched;

stigmas glabrous.

with or without enclosing endocarp.

without enclosing endocarp.

8–11 mm diam. (excluding spines), densely hispid;

mericarps 10–19, with dorsal spur 1.5–4 mm.

4–5 mm diam., minutely hairy;

mericarps 5–8, with dorsal spur to 0.5 mm.

= 30, 60, 90.

= 30.