Flora of North America species comparison

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

prostrate to erect, unbranched, (3–)5–15(–20) cm, viscid-hairy.

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 elliptic-ovate, 20–45 × 15–30 mm, 1–3 times as long as wide, base cuneate, margins ± crenate-serrate, apex acute to rounded, abaxial surface with articulate hairs or glabrous, adaxial hirsute, or surfaces sparsely ciliate only.

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, axillary, 50–150 mm, 3–8-flowered, axis viscid-hairy;

bracts oblong, 3–5 mm.

erect, (0.4–)1–3 mm, shorter than subtending bract, length 1/3–1/2 times calyx, eglandular- and glandular-hairy.

suberect, 8–10 mm, longer than subtending bract, viscid-hairy.

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 lobes 4 mm, apex obtuse, hairy;

corolla bright blue to violet-blue, 8–9 mm diam.;

stamens 7 mm;

style 7–9 mm.

compressed in cross section, obcordiform, 2.5–3.5 × 3.5–5 mm, apex emarginate, eglandular-hairy.

compressed in cross section, obovoid, 9–11 × 7–8 mm, apex emarginate, sparsely hairy.

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

unknown.

= 16 (Eurasia).

= ca. 48–50 (Russia).