Flora of North America species comparison

prostrate, densely branched, 20–80 cm, ascending-pilose or strigose.

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

trifoliolate;

stipules persistent, narrowly ovate, 3–5 mm;

petiole 3–7.5 mm;

leaflet blades broadly obovate or cuneate-obovate, often folding downwards, apex emarginate, surfaces usually sparsely uncinate-puberulent or subappressed-pilose along midrib abaxially, rarely entire surface, glabrous adaxially;

terminal blade 5–10 × 3–11 mm, length 0.8–1.2 times width.

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.

terminal fascicles opposite distal leaf, appearing axillary, unbranched;

rachis pubescent;

primary bracts narrowly ovate, 4 mm.

terminal and unbranched;

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

primary bracts ovate, 4.5–6.5 mm.

8–12 mm.

10–15 mm.

calyx 2.5–3 mm, appressed-pubescent, tube 1.2 mm;

abaxial lobes 1.5–1.7 mm, lateral lobes 1.5–1.7 mm, adaxial lobes deeply 2-toothed;

corolla pale pink to purplish, 4–5 mm, keel distinctly longer than wings.

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.

sutures weakly crenate abaxially, with broad connection between segments, barely sinuate adaxially;

connections 2/3–4/5 as broad as segments;

segments 3–5, nearly square, 2.5–3.5 × 2.5–3 mm, symmetrically convex abaxially, slightly concave adaxially, inconspicuously uncinate-pubescent or glabrescent;

stipe 0 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.

= 22.

= 22.