Flora of North America species comparison

erect, stellate-tomentose.

erect, minutely stellate-hairy.

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.

distichous;

stipules free from petiole, 1–3(–5)-veined, broadly falcate, 6–12 mm, often exceeding petiole;

petiole (1–)4–5(–8) mm, ca. 1/10 blade length, obscurely stellate-hairy;

blade lanceolate to ovate, 3–9 cm, 2–4 times longer than wide, base cuneate to rounded, margins serrate at least distally, apex acute, surfaces hirsute to glabrate.

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

axillary solitary or paired flowers, sometimes more and subumbellate.

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

jointed near base, 0.2–0.5(–0.8) cm, subequal to calyx and subtending petiole.

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 ribbed, 6–8 mm, often ciliate, lobes triangular;

petals yellow, 7–10(–12) mm;

staminal column glabrous or hairy;

style 7–12-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).

subconic, 5–7 mm, glabrous;

mericarps 7–12, 3–4 mm, laterally reticulate, apex spined, spines to 0.5 mm.

= 28.

= 28.