Flora of North America species comparison

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

prickles sparse, strongly retrorse, stout, to 1 mm, 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.

alternate, imparipinnately or palmately compound or simple;

stipules persistent [deciduous], free or adnate to petiole;

venation pinnate or palmate.

1–2-flowered.

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

bisexual;

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

filaments filiform;

ovaries moderately hairy, styles glabrous.

perianth and androecium perigynous;

epicalyx bractlets absent;

hypanthium flat to hemispheric;

torus flat or convex to conic;

carpels 5–150, styles apical, distinct;

ovules 2, apical, collateral, only 1 maturing.

red, hemispheric, 0.4–1 cm;

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

aggregated drupelets;

styles persistent, not elongate.

= 14.