Flora of North America species comparison

usually prostrate to ascending, rarely erect, sometimes rooting at proximal nodes;

branchlets reddish to grayish brown, rigid, smooth to slightly ridged, tomentulose, glabrescent.

petiole 1–4 mm;

blade flat, elliptic, ovate, or orbiculate, 8–25(–30) × 3–8(–14) mm, base cuneate to rounded, margins usually entire, rarely serrulate near apex, teeth 3–7, apex obtuse to rounded, abaxial surface pale green or grayish green and glaucous, appressed-villosulous to tomentulose, especially along veins, adaxial surface dark green, dull, appressed-villosulous or glabrous; 3-veined from base (lateral veins sometimes obscure).

not fascicled;

petiole 1–2 mm;

blade flat or cupped, obovate to oblong-obovate, 8–20 × 4–12(–15) mm, base cuneate, margins thick to revolute, usually entire, sometimes denticulate near apex, teeth 3–5, apex acute to rounded, truncate, or retuse, abaxial surface grayish green, tomentulose, adaxial surface green, glabrous.

terminal or axillary, usually umbel-like, sometimes racemelike, 1–3.5 cm.

axillary, 0.8–1.5 cm.

sepals, petals, and nectary white or pinkish.

sepals and petals pale to deep blue, sometimes tinged with lavender;

nectary dark purplish green.

4–6 mm wide, lobed;

valves smooth to rugose, viscid, usually not crested, sometimes weakly crested.

5–8 mm wide, not to weakly lobed;

valves smooth, horns subapical, minute, erect, intermediate ridges absent.