Flora of North America species comparison

decumbent to erect, glabrous or sparsely short-hairy, eglandular or sparsely stipitate-glandular, not pruinose.

biennial, erect, glabrescent, eglandular or stipitate-glandular, strongly pruinose;

prickles absent or sparse to dense, erect, weak, 1–4 mm, broad-based;

bristles present or absent.

deciduous, simple;

stipules lanceolate to narrowly ovate, 5–8(–14) mm;

blade orbiculate to reniform, (1.5–)2–4(–5) × (2.5–)3–4.5(–7) cm, base shallowly cordate, 3–5(–7)-lobed, lobe apices broadly rounded to obtuse, margins doubly dentate, abaxial surfaces sparsely hairy, mostly along veins, sparsely stipitate-glandular.

deciduous, pinnately compound;

stipules filiform, 5–10 mm;

petiole unarmed or with prickles, strigose or glabrous, glandular or eglandular;

terminal leaflets petiolulate, lateral sessile or subsessile;

leaflets 3–5(–7), terminal ovate to lanceolate, 7–15 × 4–11 cm, base rounded to cordate, unlobed or 2-lobed, margins serrate to doubly serrate, apex acute to attenuate, abaxial surfaces unarmed or with prickles, strongly white-tomentose, eglandular or glandular.

1-flowered.

terminal and axillary, (1–)3–7(–20)-flowered, racemiform.

pubescent, sparsely to densely short- to long-stipitate-glandular.

unarmed or prickles sparse, hooked, glabrous or sparsely pubescent, stipitate-glandular or eglandular.

bisexual;

petals white, obovate to ovate, 15–25(–30) mm;

filaments filiform;

ovaries glabrous, styles clavate, villous.

bisexual;

petals white to greenish white, spatulate to obovate, 5–10 mm;

filaments filiform or slightly dilated basally;

ovaries pubescent.

dark purple, hemispheric, to 1 cm;

drupelets 10–40, coherent, separating from torus.

usually red to whitish, rarely amber, globose to conic, 0.5–2 cm;

drupelets 10–60, coherent, separating from torus.

= 14, 21.