Flora of North America species comparison

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

biennial, erect to arching, rarely creeping, not node- or tip-rooting, sparsely to moderately hairy, sparsely to densely long-, rarely short-stipitate-glandular, glands rounded to flattened, not pruinose;

prickles absent or sparsely to moderately dense, erect to retrorse, weak, slender, 1–3(–5) mm, narrow-based;

bristles sparse to dense, erect to retrorse, green to reddish, narrow, semirigid, sometimes flexible, not gland-tipped.

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.

deciduous, ternate or palmately compound, sometimes ± lustrous;

stipules filiform to lanceolate, 5–20(–38) mm;

leaflets (3–)5, terminal obovate or elliptic to rhombic, 4.5–11.5 × 2–7 cm, base cuneate to narrowly rounded, unlobed, margins moderately, coarsely serrate to doubly serrate or serrate-dentate, apex acute or acuminate to short-attenuate, abaxial surfaces unarmed or with bristles on midvein, sparsely to moderately hairy, eglandular or sparsely to moderately sessile- to long-stipitate-glandular along larger veins.

1–2-flowered.

terminal on short shoots, sometimes appearing axillary, 5–15(–20)-flowered, racemiform, cymiform, or thyrsiform.

sparsely to moderately hairy, short-stipitate-glandular.

prickles or bristles sparse to dense, erect to retrorse, moderately to densely hairy, moderately to densely stipitate-glandular.

bisexual;

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

filaments filiform;

ovaries densely hairy, styles filiform, glabrous.

bisexual;

petals white, obovate to oblanceolate, 6–13 mm;

filaments filiform;

ovaries glabrous.

red, hemispheric, 1 cm;

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

black, globose, 0.7–1.5 cm;

drupelets 5–25, strongly coherent, separating with torus attached.

= 14.

= 14, 21, 28, 35.