Flora of North America species comparison

perennial, creeping, sparsely hairy, glabrescent, eglandular, not pruinose;

prickles sparse, strongly retrorse, stout, to 1 mm, broad-based.

biennial, erect, primocanes and floricanes later over-arching, glabrous or sparsely puberulent, eglandular, strongly pruinose;

prickles sometimes sparse, erect or hooked, narrow to stout, 4–8 mm, narrow- to broad-based.

evergreen, simple or ternate;

stipules adnate to petioles, broadly elliptic to ovate, (6–)8–10 mm;

blade ovate to cordate, (2.5–)3–5(–8) cm, lobe or leaflet base cordate, shallowly 3-lobed, margins coarsely, singly or doubly dentate, apex acute to obtuse, abaxial surfaces with prickles along midveins, glabrous or sparsely hairy, eglandular, both surfaces lustrous fresh.

deciduous, ternate or palmately compound;

stipules filiform, 5–10 mm;

petiole usually armed with prickles;

petiolules of terminal leaflets also sometimes armed;

lateral leaflets sessile or subsessile;

leaflets 3(–5), terminal ovate to lanceolate, 5–14 × 3–11 cm, base rounded to cordate, unlobed or laterals sometimes lobed, margins finely to doubly serrate, apex acute, abaxial surfaces sometimes with hooked prickles on midveins, densely white-canescent to tomentose, eglandular.

1–2-flowered.

(2–)3–7(–20)-flowered, cymiform or umbelliform.

prickles scattered, retrorse, moderately to densely hairy, eglandular.

prickles erect, hooked, puberulent to pubescent, eglandular.

bisexual;

petals magenta to pink, elliptic to oblanceolate or spatulate, (5–)8–10 mm;

filaments filiform;

ovaries moderately hairy, styles glabrous.

bisexual;

petals initially erect, later ascending, white, narrowly obovate to elliptic, 5–10 mm, apex sometimes emarginate;

filaments laminar;

ovaries tomentose.

red, hemispheric, 0.4–1 cm;

drupelets 3–10, not coherent, separating from torus.

usually dark purplish to black, rarely amber, pruinose, aromatic, depressed-globose, 1–1.5 cm;

drupelets 20–50, coherent, separating from torus.

= 14.

= 14.