Flora of North America species comparison

decumbent, (5–)10–30 cm, ± eglandular-hairy.

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

blade broadly ovate to suborbiculate, 3(–5)-lobed, central lobe 1/4–1/2 times length of whole leaf, (3–)5–10(–15) × (4–)6–12(–18) mm, ± fleshy, base truncate to subcordate, margins 3(–5)-lobed, apex acute, surfaces sparsely eglandular-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.

1–10, terminal, (50–)100–300 mm, 5–20-flowered, axis sparsely eglandular-hairy;

bracts broadly ovate to suborbiculate, 3(–5)-lobed, (3–)5–10(–15) mm.

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.

patent, deflexed in fruit, (2–)4–8(–10) mm, shorter than subtending bract, length 1–2 times calyx, glabrous abaxially, hairy adaxially.

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

calyx lobes 4–5(–6) mm, apex acute, puberulent on abaxial surface, rarely glabrous, densely ciliate with 35–60 per side;

corolla deep blue with white center, 3–5 mm diam.;

stamens dark blue, length unknown;

style 0.5–0.9(–1.1) mm.

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.

± round in cross section, ovoid, 2.5–3(–3.5) × 4–5 mm, apex ± emarginate, glabrous.

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

(1–)4, dull yellowish brown, ellipsoid, often elongate-cuboidal, deeply urn-shaped (elaiosome inside), 2.2–2.8 × 1.5–2.2 mm, 1–1.4 mm thick, cristate to strongly rugose at margins.

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

= 18 (Eurasia).

= 16 (Eurasia).