Flora of North America species comparison

erect or ascending, (1–)3–15(–20) cm, at least distally glandular- and eglandular-hairy.

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

blade lanceolate to ovate, (4–)6–13 × (2.5–)4–10 mm, 1.3–1.6 times as long as wide, base cuneate, proximal margins coarsely crenate-serrate, distal pinnatifid to subpalmatifid, lobes 3–7, central largest, lateral linear to lanceolate, apex of central lobe obtuse, lateral ± acute, surfaces sparsely glandular-hairy.

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.

1–3, terminal and axillary, 20–80 mm, (5–)15–40(–60)-flowered, axis eglandular- and glandular-hairy;

bracts proximalmost often 3-fid, others linear-lanceolate, 3–5(–8) 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, (0.4–)1–3 mm, shorter than subtending bract, length 1/3–1/2 times calyx, eglandular- and glandular-hairy.

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

calyx lobes (2–)3–5(–7) mm, apex acute, eglandular- and glandular-hairy;

corolla sky to pale blue, 1.5–3 mm diam.;

stamens 0.2–0.6 mm;

style 0.2–0.6 mm, stigma white.

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 × 3.5–5 mm, apex emarginate, eglandular-hairy.

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

8–20(–26), yellowish, ellipsoid, flat, 0.9–1.6 × 0.6–1.3 mm, 0.2 mm thick, smooth to ± rugulose.

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.

= 16 (Eurasia).

= 18, 36 (Europe).