Flora of North America species comparison

creeping, flowering branches erect, glabrous or sparsely to moderately hairy, eglandular, not pruinose.

biennial, arching, sometimes creeping, glabrate to moderately hairy, sparsely to densely sessile- to short-stipitate-glandular, not or weakly pruinose;

prickles moderately dense to dense, suberect to retrorse or hooked, stout, 2–8 mm, broad-based.

deciduous, usually ternate, sometimes pedately 5-foliate;

stipules lance-ovate to oblanceolate, (5–)8–12(–20) mm;

leaflets 3(–5), petiolule of terminal leaflet 2–7 mm, terminal rhombic to obovate, (2–)4–8(–10) × 2–4(–6) cm, base cuneate, unlobed or 2-lobed, margins deeply serrate to doubly serrate, apex acute or acuminate, abaxial surfaces glabrous or sparsely hairy, eglandular.

evergreen to late-deciduous, ternate or palmately compound;

stipules filiform, 5–15 mm;

leaflets 3–5, terminal ovate to elliptic, 6–12 × 7–12 cm, base rounded to cordate, usually deeply, rarely shallowly, lobed, margins coarsely serrate to doubly serrate, apex acuminate to short-attenuate, abaxial surfaces with hooked prickles primarily on midvein, moderately to densely hairy, eglandular or moderately sessile- to short-stipitate-glandular primarily on midvein.

1–3-flowered, sometimes umbelliform.

terminal, 5–25-flowered, thyrsiform.

moderately to densely long-hairy, eglandular to densely stipitate-glandular.

prickles moderate to dense, erect to reflexed, densely hairy, moderately to densely sessile- to short-stipitate-glandular.

bisexual;

petals white to pink, oblanceolate to obovate, (4–)6–8(–10) mm;

filaments laminar;

ovaries glabrous, styles glabrous.

bisexual;

petals white to pink, elliptic to obovate, 8–15 mm;

filaments filiform;

ovaries usually apically hairy.

red, globose to conical, 0.5–1.4 cm diam., drupelets (5–)10–25, loosely coherent, falling separately or as a unit with torus attached.

black, globose to subcylindric, 1–1.5 cm;

drupelets 25–60, strongly coherent, separating with torus attached.

= 14.

= 28.