Flora of North America species comparison

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.

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

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.

deciduous, pedately compound;

stipules broadly ovate to suborbiculate, 2–3 mm;

leaflets 3 (often appearing as if 5), lateral leaflets deeply lobed, sinuses nearly to leaflet base, terminal obovate to obovate-rhombic, (1–)1.5–2.5(–3.4) × (0.8–)1.2–2(–2.5) cm, base cuneate, margins coarsely singly or doubly serrate, apex rounded to obtuse, abaxial surfaces glabrous or sparsely hairy on midvein, eglandular or sparsely stipitate-glandular.

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

1-flowered.

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

sparsely hairy, eglandular or sparsely stipitate-glandular.

bisexual;

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

filaments filiform;

ovaries glabrous.

bisexual;

petals white, oblong to narrowly obovate, 6–10 mm;

filaments filiform;

ovaries glabrous, styles glabrous.

black, globose, 0.7–1.5 cm;

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

red, 0.6–1 cm;

drupelets 3–6, weakly coherent, separating from torus.

= 14, 21, 28, 35.

= 14.