Flora of North America species comparison

ascending or erect, usually striate, angled, 30–100 cm, densely uncinate-puberulent to -pubescent and sparsely glutinous-pilose.

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

trifoliolate;

stipules persistent, ovate, 7.5–14.5 mm;

petiole 40–90 mm;

leaflet blades narrowly ovate to ovate or broadly ovate, thick, leathery, apex acute, usually pale-blotched along midrib adaxially, surfaces uncinate-puberulent to -pubescent and villous;

terminal blade 40–120 × 20–66 mm, length 2 times width.

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.

branched or unbranched;

rachis densely uncinate-puberulent to -pubescent and glutinous-villous;

primary bracts ovate to broadly ovate, 7–10 mm.

branched or unbranched;

rachis bulbous-villous and uncinate-puberulent;

primary bracts caducous, subulate, 1 mm.

8–25 mm, patent uncinate-pubescent and pilose.

10–20 mm, patent uncinate-pubescent.

calyx 3–5 mm, puberulent and pubescent, ± glutinous, tube 1.2–1.5 mm;

abaxial lobes 2.5–4 mm, lateral lobes 1.5 mm;

corolla white, 7–8 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.

sutures nearly equally crenate;

connections adaxial, 1/4 as broad as segments;

segments (2 or)3–5(or 6), subrhombic, 6–8 × 4 mm, obtusely angled abaxially, somewhat angled adaxially, densely uncinate-pubescent throughout;

stipe 2–4 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.