Flora of North America species comparison

ascending or erect, 50–100 cm, inconspicuously uncinate-puberulent.

trifoliolate;

stipules caducous, narrowly deltate, 3 mm, glabrous;

petiole 5–20 mm;

leaflet blades linear, leathery, usually folded and appearing narrower, apex acute or obtuse, surfaces reticulate-veined adaxially, glabrous or sparsely puberulent abaxially, glabrous adaxially;

terminal blade 30–60(–80) × 5–7 mm, length 8–10 times width.

branched or unbranched;

rachis uncinate-pubescent and villous;

primary bracts ovate, 2.5 mm.

5–10 mm.

calyx 1.5–2 mm, uncinate-puberulent, tube 0.8–1 mm;

abaxial lobes 1 mm, lateral lobes 0.7–0.8 mm;

corolla pink, 4–5 mm.

sutures crenate abaxially, sinuate adaxially;

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

segments (1 or)2 or 3, semiorbiculate, 3.5–5 × 3 mm, symmetrically rounded abaxially, convex adaxially, densely uncinate-puberulent throughout;

stipe 0.5–3 mm.