Flora of North America species comparison

erect, stellate-tomentose.

erect to often reclining, glandular-puberulent, viscid and 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.

stipules free from petiole, 1-veined, subulate, 1–3 mm, shorter than petiole;

petiole 8–30 mm, 1/4–1/2 times length of blade, glandular-puberulent and with simple 1–2 mm hairs;

blade ovate, 3–6 cm, 1.5–2 times longer than wide, base cordate, margins serrate-crenate or dentate to base, apex acute, surfaces sparsely stellate-hairy.

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

axillary solitary flowers and 2–4-flowered fascicles, sometimes appearing paniculate.

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

jointed 2–5 mm below calyx, slender, 1–2 cm, longer than 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 mm, not beaked in bud, with both stellate and glandular hairs, lobes triangular, acute to short-acuminate;

petals white or yellow-orange, 5–6 mm;

staminal column hairy;

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).

subconic, 4–5 mm diam., puberulent;

mericarps 5, 2.5 mm, dorsally reticulate, apex spined, spines 1–2 mm, minutely antrorsely hairy.

= 28.

= 16.