Flora of North America species comparison

decumbent to erect, usually much branched, 1.5–7 dm.

usually unbranched distally, 1.5–5(–6) dm.

3–12(–14) cm;

stipules pale brown, sometimes streaked, 2–10 mm;

leaflets 5–15, blades usually oblong to elliptic, lanceolate-oblong, or ovate, rarely linear, 7–40 × 2–19 mm, veins obscure, surfaces strigose abaxially, strigose or glabrous adaxially.

3–12(–14) cm;

stipules usually stramineous;

leaflets 9–15, blades 10–40 × 3–14 mm, surfaces pubescent abaxially, glabrous adaxially.

5–45-flowered, axis 5–28.5 cm in fruit;

bracts 2–4 mm.

5–20-flowered, 2–10(–15) cm.

2.8–15 cm.

0.8–4.5 mm.

ascending at anthesis;

calyx 4.5–8 mm;

tube 2–3.5 mm, strigose;

lobes subulate, 2–6 mm, subequal to markedly unequal;

corolla usually red-purple, pink, magenta, or purple, rarely white, 10–22(–26) mm;

wing auricles distinct, blunt, shorter than claw.

corolla usually red-purple (fading dark purple), sometimes pink, rarely white, (14–)18–22(–26) mm.

segments 2–8, 4.5–9 × 4–6.2 mm, margins prickly or not, not winged to moderately winged, prominently reticulate, usually crisp-puberulent to minutely strigose, rarely glabrous.

segments 3–8, margins and areolae often black-pigmented, 4.5–8 × 4–5.5 mm.

= 16.