Flora of North America species comparison

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

ascending, (5–)15–45(–80) cm, glabrous, sometimes sparsely eglandular-hairy distally.

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.

petiole 0 mm;

blade narrowly lanceolate or linear, rarely elliptic, (10–)30–50(–80) × (2–)3–7(–14) mm, 6–10 times as long as wide, base cuneate, margins remote- and fine-dentate, apex acute, abaxial surface glabrous, adaxial glabrous or sparsely eglandular-hairy.

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.

1–5(–10), axillary, 40–90(–150) mm, (2–)5–20-flowered, axis glabrous, sometimes sparsely eglandular-hairy;

bracts lanceolate, 1.5–3 mm.

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

patent or ± curled, (6–)10–15(–17) mm, longer than subtending bracts, glabrous.

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 (1–)2–3 mm, apex obtuse to acute, glabrate;

corolla pale lilac, pale sky blue, or whitish, with pink or dark blue narrow stripes, 2.5–7 mm diam.;

stamens 4–5 mm;

style (1–)2–4 mm.

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

compressed in cross section, ovoid or reniform, 2.5–5 × (3–)4–6 mm, apex emarginate by 1/3 length, glabrous.

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

5–20, pale brownish, globular or ovoid, flat, 1.2–1.9 × 1–1.5 mm, 0.2 mm thick, smooth.

= 16 (Eurasia).

= 18.