Flora of North America species comparison

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

erect or ascending, often blue tinged, (3–)5–15(–20) cm, densely 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: proximal ovate to triangular, 5–7 × 3–6 mm, distal 8–18 × 8–18 mm, base rounded, margins (proximal) coarsely crenate or (distal) 3–5(–7)-palmatifid, apex obtuse, surfaces sparsely hairy, often glandular.

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, terminal, sometimes also 1 or 2 axillary, 30–120(–150) mm, 6–15(–25)-flowered, axis densely eglandular- and glandular-hairy;

proximal bracts 5-palmatifid, distal 3-fid, 4–18 mm.

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

patent or arcuate-ascending, 4–11(–20) mm, ± equal to subtending bract, length 1–2 times calyx, densely 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 4–6(–11) mm, apex obtuse, glandular-hairy;

corolla deep blue, 5–10 mm diam.;

stamens 0.9–1.7 mm;

style (0.5–)0.7–1.5(–2) mm.

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

± inflated basally, compressed distally in cross section, obcordiform, 4–5(–10) × 4.5–6.5(–8) mm, apex emarginate, glandular-hairy.

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

14–22(–35), dark brown or blackish, subglobular, cymbiform, 1–2.2 × 0.7–2 mm, 0.4–0.9 mm thick, ± rugulose to cristate.

= 16 (Eurasia).

= 14 (Eurasia).