Flora of North America species comparison

erect, usually striate, 10–50 cm, obscurely uncinate-puberulent or glabrescent.

decumbent or prostrate, 50–100 cm, patent-villous and uncinate-puberulent.

trifoliolate;

stipules persistent, patent, subulate or narrowly deltate (from broad base), 2–3 mm;

petiole 10–35 mm;

leaflet blades linear to narrowly oblong, apex obtuse, surfaces sparsely uncinate-puberulent;

terminal blade 20–70 × 2–5 mm, length 7+ times width.

usually trifoliolate, rarely unifoliolate;

stipules persistent, reflexed in age, deltate or ovate, 5–12 mm, base obliquely cordate, subamplexicaul;

petiole 10–35 mm;

leaflet blades ovate, ± leathery, apex obtuse or sometimes acute, surfaces prominently reticulate-veined adaxially, uncinate-puberulent on veins or glabrescent abaxially, uncinate-puberulent adaxially;

terminal blade 30–75 × 22–53 mm, length 1.2–2 times width.

usually unbranched;

rachis sparsely patent uncinate-puberulent;

primary bracts usually persistent, subulate, patent, 1.5–4 mm.

ascending to erect, axillary distally and unbranched, sometimes also terminal and branched;

rachis pilose and uncinate-puberulent;

primary bracts caducous, broadly ovate, 5–6 mm.

15–20(–25) mm.

10–20 mm.

calyx 1 mm, sparsely puberulent, tube 0.8–1 mm;

abaxial lobes 1 mm, lateral lobes 1 mm;

corolla pink or pink-purple, 3–3.5 mm.

calyx 3–4 mm, pilose and uncinate-puberulent, tube 1 mm;

abaxial lobes 3 mm, lateral lobes 1.2–1.5 mm, to 2.5 mm in fruit;

corolla white or ochroleucous, 7–8 mm.

margins sometimes slightly involute, sutures equally crenate;

connections central, 1/5 as broad as segments;

segments 2–4, rounded, 3–3.5 × 3 mm, rounded abaxially and adaxially, inconspicuously reticulate, glabrous;

stipe 1–1.5 mm.

sutures deeply crenate abaxially, crenate adaxially, contorted by irregular folding of margins near or at connection between segments;

connections adaxial, 1/5–1/4 as broad as segments;

segments 3–5, suborbiculate to subrhombic, 7–10 × 5–8 mm, symmetrically rounded abaxially, convex adaxially, glabrous, sutures uncinate-pubescent;

stipe 0 mm (or indistinctly stipitate by narrowing proximal segment).