Flora of North America species comparison

prostrate, decumbent, or trailing, branched from base, 25–70 cm, uncinate-puberulent to -pubescent.

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

usually trifoliolate, rarely unifoliolate proximally;

stipules persistent, reflexed, narrowly deltate, 3–5.5 mm;

petiole 12–20 mm;

leaflet blades pale green abaxially, broadly ovate to suborbiculate, apex obtuse, surfaces clearly reticulate-veined abaxially, prominently reticulate-veined adaxially, loosely strigulose or glabrescent abaxially, appressed, bulbous-pilose adaxially;

terminal blade 20–45 × 15–25 mm, length 1.2–1.7 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.

terminal and unbranched;

rachis densely patent uncinate-pubescent and often bulbous-pilose;

primary bracts ovate, 4.5–6.5 mm.

branched or unbranched;

rachis bulbous-villous and uncinate-puberulent;

primary bracts caducous, subulate, 1 mm.

10–15 mm.

10–20 mm, patent uncinate-pubescent.

calyx 5–6 mm, pubescent, tube 1 mm;

abaxial lobes 4–5 mm, lateral lobes 3–4 mm;

corolla pink, lilac to purple, or greenish 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 crenate abaxially, strongly crenate adaxially;

connections adaxial, 1/3 as broad as segments;

segments (2 or)3–6, elliptic to suborbiculate, 4.5–8 × 3–5 mm, symmetrically rounded abaxially, convex adaxially, densely uncinate-pubescent throughout;

stipe 3–3.5 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.

= 22.