Flora of North America species comparison

biennial, erect-arching, sparsely to densely hairy, sparsely to abundantly stipitate-glandular, glands usually flattened to cupulate, not pruinose;

prickles sparse to dense, erect or slightly retrorse, stout, 4–10 mm, broad-based.

erect, thin, weak, ± woody basally, glabrous or sparsely hairy, eglandular, not pruinose.

deciduous, palmately compound, not lustrous;

stipules filiform to narrowly lanceolate, (2–)5–15(–20) mm;

leaflets (3–)5(–7), terminal ovate to lanceolate, 7–16 × 4–9 cm, base rounded to shallowly cordate, unlobed, margins finely to coarsely serrate or doubly serrate, apex acuminate to long-attenuate, abaxial surfaces with hooked prickles on midveins, moderately hairy, moderately to densely stipitate-glandular on veins.

deciduous, simple and usually 3-lobed or ternate;

stipules ovate to lanceolate, 4–8 mm;

blade margins dentate, serrate, or doubly serrate, abaxial surfaces sparsely to moderately pubescent, eglandular.

terminal on short shoots, sometimes appearing axillary, (5–)15–25-flowered, racemiform, often elongate.

axillary, 1–3-flowered.

unarmed or prickles sparse, hooked, densely hairy, densely short- to long-stipitate-glandular.

glabrous or sparsely to moderately pubescent, eglandular or stipitate-glandular.

bisexual;

petals white, obovate to elliptic, rarely suborbiculate, 8–20 mm;

filaments filiform;

ovaries glabrous or glabrate.

bisexual;

petals pink to rose or magenta, obovate to oblanceolate, 8–25 mm;

outer filaments dilated basally, inner filiform;

ovaries glabrous or sparsely hairy, styles filiform.

black, globose to cylindric, 1–2 cm;

drupelets 20–100, strongly coherent, separating with torus attached.

reddish to dark purple, globose, to 1 cm diam., rarely larger;

drupelets (10–)15–30, weakly coherent, separating with torus attached.

= 14, 21, 28.