Flora of North America species comparison

erect, stellate-tomentose.

procumbent, stellate-hairy, hairs multirayed, usually also with simple 1–2 mm hairs.

stipules free from petiole, 1-veined, linear, 5–8 mm, shorter than petiole;

petiole 10–25 mm, to 1/2 length of blade, stellate-tomentose;

blade broadly cordate to ovate-lanceolate, to 6 cm, reduced distally, 1–2 times longer than wide, base cordate, margins dentate to base, apex acute, surfaces softly velvety-tomentose.

distributed evenly along stems;

stipules inconspicuous, free from petiole, subulate, 1.5–3 mm;

petiole 5–15 mm, 1/2 to equaling or exceeding blade, often with simple 1–2 mm hairs;

blade ovate to oblong, to 1.5+ cm, 1.5–3 times longer than wide, base cordate, margins crenate to base, apex obtuse to acute, surfaces hairy.

axillary, usually subsessile, crowded panicles or corymbs, sometimes solitary flowers.

axillary solitary flowers.

0.2–0.4 cm, enlarging slightly in fruit, shorter than calyx.

slender, 1–2.5 cm, 2–5 times as long as calyx.

calyx prominently ribbed, 6–7 mm, densely stellate-tomentose, lobes ovate;

petals yellow-orange, often with darker reddish base, 8–11 mm;

staminal column hairy;

style 8–14-branched.

calyx angulate, 4–5(–7) mm, hirsute, lobes ovate-acuminate;

petals white, 5–6 (–10) mm;

staminal column puberulent;

style 5-branched.

oblate-conic, 6–7 mm diam., apically hairy;

mericarps 8–14, 4–5 mm, dorsally smooth, apex spined, spines to 2 mm, retrorsely barbed (variably developed, rarely suppressed).

conic, 4 mm diam., hairy;

mericarps 5, 2–3 mm, basal portion slightly rugose, apex spined, spines 0.1–0.5 mm, antrorsely hairy.

= 28.

= 14