Flora of North America species comparison

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

creeping, decumbent to ascending distally, 10–40(–50) cm, densely eglandular-hairy, rarely glabrate or 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.

blade ovate, ovate-oblong, or obovate, (8–)20–35(–50) × (3–)10–20(–30) mm, 1.5–2 times as long as wide, base attenuate to cuneate or obtuse, margins dentate, denticulate, or serrulate, apex obtuse to rounded, surfaces sparsely to densely eglandular-hairy, rarely glabrate.

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

bracts oblong, 4–7 mm.

1–4(–8), axillary, 40–60 mm, 10–35(–40)-flowered, axis densely to sparsely eglandular-hairy, sometimes also glandular-hairy, rarely glabrate;

bracts linear-lanceolate or narrowly ovate, (1.5–)3–4(–5) mm.

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

erect, (0.5–)1–2(–3) mm, shorter than subtending bract, densely eglandular-hairy, rarely glandular-hairy or glabrate.

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 4(or 5)-lobed, lobes 2–3.5(–4) mm, apex obtuse, glandular- and eglandular-hairy;

corolla pale blue-lilac to pale pink, rarely white with pink veins, 6–8 mm diam.;

stamens 2.8–3.4 mm;

style 2.5–3(–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.

compressed in cross section, triangulate-obdeltoid to obcordiform, 3–5 × 4–5 mm, apex rounded or truncate, rarely emarginate, glandular-hairy, rarely glabrous.

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

9–24, brown to yellow, ellipsoid, ovoid, or obovoid, flat, 0.8–1.6 × (0.3–)0.6–1.2 mm, 0.2–0.3 mm thick, smooth.

= 14.

= 18, 36 (Europe).