Flora of North America species comparison

biennial, erect, then arching, usually moderately, rarely sparsely, hairy hairs stellate, eglandular, strongly pruinose;

prickles absent or sparse to dense, erect to hooked, stout, 3–10 mm, broad-based.

creeping, flowering branches erect, sparsely hairy, eglandular or sparsely to moderately short-stipitate-glandular, not pruinose.

persistent or nearly so, ternate to palmately compound;

stipules filiform to linear, 4–12 mm;

leaflets 3–5, terminal ovate, elliptic, or suborbiculate to obovate, 4–10 × 2–6(–9) cm, base rounded to cuneate, unlobed, margins finely to moderately serrate, apex acute or acuminate to attenuate, abaxial surfaces with hooked prickles on larger veins, densely white short-velutinous, hairs usually minute, eglandular.

deciduous, simple or ternate;

stipules broadly elliptic to ovate, 5–10 mm;

leaflets 3(–5), blade reniform or orbiculate, terminal lobe or leaflets broadly obovate to obovate-cuneate, 1.5–4(–6) × 1.5–4(–6) cm, base cordate, 3(–5)-lobed, margins coarsely doubly dentate, apex rounded to acute, abaxial surfaces sparsely hairy on veins, eglandular.

terminal, 10–60-flowered, paniculiform or thyrsiform.

1–2-flowered.

unarmed or prickles moderate to dense, erect to hooked, densely short-hairy, eglandular.

sparsely to moderately hairy, short-stipitate-glandular.

bisexual;

petals usually pink, sometimes white, obovate or elliptic to suborbiculate, 5–12 mm;

filaments filiform;

ovaries apically hairy.

bisexual;

petals white, broadly elliptic to obovate to orbiculate, (5–)8–10(–12) mm;

filaments filiform;

ovaries densely hairy, styles filiform, glabrous.

black, globose to ovoid, 1–1.5 cm;

drupelets 10–40, strongly coherent, separating with torus attached.

red, hemispheric, 1 cm;

drupelets 5–15, weakly coherent, falling separately or as loose units free from torus.

= 14.

= 14.