Flora of North America species comparison

erect or ascending, branched, 50–200 cm, conspicuously or sparsely villous and uncinate-pubescent.

erect, 50–100 cm, sparsely to densely pilose or villous, usually patent uncinate-puberulent and -pubescent, sometimes glabrescent.

trifoliolate;

stipules mostly persistent, usually reflexed, broadly or narrowly ovate, 5–13 mm, base oblique, often auriculate, subamplexicaul;

petiole 30–60 mm;

leaflet blades ovate, thick, papery, apex acute to gradually acuminate, surfaces densely uncinate-puberulent abaxially, uncinate-puberulent and pubescent on veins adaxially;

terminal blade 50–130 × 30–100 mm, length 1.5–2 times width.

trifoliolate;

stipules ± persistent, subulate to narrowly ovate, 4.5–9.5 mm;

petiole 10–60 mm;

leaflet blades often pale green abaxially, ovate to narrowly ovate, apex acute, surfaces slightly or visibly strigulose abaxially, sparsely puberulent or nearly glabrescent adaxially;

terminal blade 40–110 × 15–30 mm, length 2.5–3.5 times width.

paniclelike, branched;

rachis densely patent bulbous-villous and uncinate-puberulent;

primary bracts caducous, narrowly ovate, 4–6 mm.

terminal and branched, or unbranched from distal axils;

rachis villous and uncinate-pubescent, sometimes appearing glabrescent;

primary bracts caducous, narrowly ovate, 6–7 mm.

persistent, 8–13 mm.

4–8 mm.

calyx 3–5 mm, sparsely or densely puberulent, tube 1 mm;

abaxial lobes to 3 mm, lateral lobes 1 mm;

corolla usually purple to pinkish, rarely white, 9–13 mm.

calyx 3.5–5 mm, densely uncinate-puberulent and sparsely pilose, tube 1–1.5 mm;

abaxial lobes 3–3.5 mm, lateral lobes 2 mm;

corolla usually blue-violet, rarely white, 8–11 mm.

sutures dentate or crenate abaxially, sinuate adaxially;

connections adaxial, 1/3–1/2 as broad as segments;

segments 4–6, broadly elliptic, 6.5–13 × 4–7 mm, obtusely angled abaxially becoming round, convex adaxially, uncinate-puberulent and villous, hairs particularly dense on sutures and between segments;

stipe 2.5–6 mm.

sutures crenate abaxially, repand or sinuate adaxially;

connections adaxial, 1/2 as broad as segments;

segments 3–5, semiorbiculate, 4–8 × 4–5 mm, rounded abaxially, convex adaxially, densely uncinate-puberulent;

stipe 2(–3) mm.

= 22.

= 22.