Flora of North America species comparison

creeping to ascending, 5–40 cm, scattered eglandular hairs only, often also with glandular hairs, sometimes glabrate.

decumbent or ascending, 5–50 cm, glabrous.

blade oblong-lanceolate to ovate, 8–25 × 5–13 mm, 1.5–2.5 times as long as wide, base cuneate, margins subentire or serrulate-crenate, apex rounded to short-acuminate, surfaces glabrate.

petiole 2–6(–10) mm;

blade ovate to lanceolate, widest proximal to middle, (5–)30–50(–100) × (3–)7–20(–30) mm, 2–4 times as long as wide, base truncate, rounded or almost cordate, abruptly turning into petioles, margins entire or serrate, apex obtuse-orbicular or acute, surfaces glabrous.

1, terminal, 50–100 mm, 10–30(–60)-flowered, axis eglandular- and glandular-hairy;

bracts oblong, 4–7 mm.

1–8, axillary, 30–100 mm, (3–)10–30-flowered, axis glabrous;

bracts lanceolate, 3–6 mm.

erect, 2–5 mm, 4–6 mm in fruit, shorter than subtending bract in flower, eglandular- and, sometimes, glandular-hairy.

patent, 3–10(–12) mm, equal to ± longer than subtending bract, glabrous.

calyx lobes 2–3 mm, apex acute, ciliate;

corolla white, blue, or pink, with purple or dark blue veins (except on abaxial lobe), rotate, 5–8 mm diam.;

stamens 2.5–3 mm;

style 2–4 mm.

calyx lobes 2–5(–6) mm, apex acute, glabrous;

corolla pink or sky blue, 4–10 mm diam.;

stamens 2–4 mm;

style (1.7–)2.5–3.5(–4) mm.

compressed in cross section, obcordiform, 2.5–3.5 × 4–5.5 mm, wider than long, apex acutely emarginate, glandular-ciliate, otherwise glabrate.

slightly compressed in cross section, globular, 2–4 × 3–5 mm, apex not or ± emarginate, glabrous.

50–72, brown, ellipsoid, flat, 0.6–1.1 × 0.4–1 mm, 0.2 mm thick, smooth.

20–30, brownish, ellipsoid to ovoid, indistinct-compressed or planoconvex, 0.5–0.7 × 0.3–0.6 mm, thickness varies due to compression in capsule, indistinctly wrinkled or ± rugose.

= 14.

= 36.