Flora of North America species comparison

erect or ascending, branched, 40–100 cm, slightly uncinate-pubescent and pilose or glabrescent.

erect, mostly unbranched, 30–300 cm, densely (sparsely in age) villosulous, also densely uncinate-puberulent and -pubescent.

trifoliolate;

stipules mostly persistent, broadly ovate, 4–10 mm, base subamplexicaul;

petiole 30–40 mm;

leaflet blades broadly ovate-elliptic or ovate to narrowly ovate, apex acute, surfaces uncinate-puberulent;

terminal blade 20–70(–100) × 10–20(–50) mm, length 1.8–2 times width.

trifoliolate;

stipules caducous, narrowly ovate to ovate, 3–7 mm;

petiole 15–40 mm;

leaflet blades broadly ovate or broadly rhombic, base acute to cuneate or truncate, apex acute to acuminate, surfaces densely velvety or villous, especially on veins abaxially, uncinate-puberulent and obscurely strigose on veins adaxially;

terminal blade 50–120(–150) × 35–90 mm, length 1–1.5(–2) times width.

branched or unbranched;

rachis bulbous-villous and uncinate-puberulent;

primary bracts caducous, subulate, 1 mm.

branched or unbranched;

rachis uncinate-pubescent and sparsely villous;

primary bracts narrowly deltate, 3 mm, pilose.

10–20 mm, patent uncinate-pubescent.

3–9 mm.

calyx 1.5–2 mm, pilose and uncinate-puberulent, tube 0.8 mm;

abaxial lobes 1 mm, lateral lobes 0.8–1 mm;

corolla pink-purple, fading greenish, 4–5 mm.

calyx 2–3 mm, spreading-pilose, tube 2 mm;

abaxial lobes 2.5–4.5 mm, lateral lobes 2–4 mm;

corolla purple to pink or pallid lavender, 7–8 mm.

sutures subequally deeply crenate;

connections central, 1/8–1/7 as broad as segments;

segments 3–6, rounded, 6–10 × 5–7 mm, rounded, sparsely pubescent, at least on sutures;

stipe 1(–2) mm.

sutures subdentate abaxially, sinuate adaxially;

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

segments (3 or)4 or 5, rhombic, 5–8(–9) × 3–3.5 mm, symmetrically angled abaxially, straight or convex adaxially, moderately to densely uncinate-puberulent throughout;

stipe 3–6 mm.

= 22.