Flora of North America species comparison

creeping, 5–50 cm, eglandular- and glandular-hairy.

erect to ascending, (8–)10–20(–40) cm, glandular- and eglandular-hairy.

blade suborbiculate, 4–13 × 4–14 mm, base cordate, margins crenate-serrate, teeth (2 or)3–5(or 6) per side, apex rounded, surfaces sparsely eglandular- and/or glandular-hairy.

blade lanceolate to ovate, 7–19(–21) × (3–)5–12 mm, 1–2 times as long as wide, base cuneate, margins (proximal) crenate-dentate or (distal) ±palmatifid, lobes 3–7+, apex of central lobe obtuse, lateral ± acute, surfaces glandular- and eglandular-hairy.

1–6, terminal, 50–500 mm, 10–20-flowered, axis sparsely eglandular- and/or glandular-hairy;

bracts suborbiculate, 4–13 mm.

1, terminal, 60–180 mm, 15–50(–120)-flowered, axis eglandular- and glandular-hairy;

proximal bracts similar to leaves, distal ones linear-lanceolate, 3–5 mm.

patent or recurved, (15–)20–30 mm, length 2–5 times subtending bract, eglandular- and glandular-hairy.

erect, 2–4(–5) mm, shorter than subtending bract, length 1/2–1 times calyx, eglandular- and glandular-hairy.

calyx lobes 4–7 mm, 1.5–2.5 mm wide, apex rounded, sparsely glandular-hairy to glabrate;

corolla blue-violet to pale blue and white, 8–14 mm diam.;

stamens 2.1–2.5 mm;

style 3–4 mm.

calyx lobes 3.5–6 mm, apex acute, eglandular- and glandular-hairy;

corolla deep blue, 4–6 mm diam.;

stamens 0.8–1.5 mm;

style 0.8–1.5 mm, stigma violet.

compressed in cross section, subglobular, 3.5–5 × 5.5–6.5 mm, apex emarginate, sinus angle 50–90°, absent or almost smooth, glabrous or glandular-ciliate.

compressed in cross section, narrowly obcordiform, 3.5–4.5 × 4–6 mm, apex emarginate, angle of sinus ca. 90°, ciliate with glandular and eglandular hairs.

(2–)6–14(–18), ochre, ovoid, flat to ± excavate, 1.3–1.7 × 1–1.3 mm, 0.6–0.8 mm thick, rugose to rugulose.

10–28, yellowish, ellipsoid, flat, 0.9–1.6 × 0.7–1.3 mm, 0.2–0.3 mm thick, smooth.

= 14 (Europe).

= 16 (Eurasia).