Flora of North America species comparison

creeping to decumbent, 10–50(–60) cm, eglandular-hairy.

decumbent to ascending, (5–)10–30 cm, sparsely subvillous to glabrate.

blade suborbiculate, broadly ovate, or broadly lanceolate, (6–)9–18(–30) × (5–)8–15(–20) mm, base truncate, margins serrate, apex acute, surfaces sparsely eglandular-hairy.

blade suborbiculate, 6–20 × 9–20 mm, base subcordate, truncate, or cuneate, margins 5–9-lobed 1/6–1/3 of width of blade, lateral lobes ± narrower, apex acute, surfaces eglandular-hairy, rarely also glandular-hairy or glabrate.

1–6, terminal, 100–500(–600) mm, 5–30-flowered, axis eglandular-hairy;

bracts suborbiculate or broadly ovate or broadly lanceolate, (6–)9–18(–25) mm.

1–10, terminal, (50–)100–300 mm, 5–20-flowered, axis eglandular-hairy, rarely also glandular-hairy or glabrate;

bracts suborbiculate, 6–20 mm, 5- to 9-lobed for 1/6–1/3 of width of leaf blade, lateral lobes ± narrower.

spreading, deflexed in fruit, (12–)15–27(–38) mm, length 1–2(–3) times subtending bract, densely eglandular-hairy.

patent or recurved, 5–15(–30) mm, equal in flower to ± longer than subtending bract in fruit, eglandular- or glandular-pilose or glabrous.

calyx lobes (4.5–)5.5–8(–9.5) mm, (1.7–)2.4–3.6(–4.2) mm wide, apex acuminate, eglandular-hairy;

corolla intense bright blue, 8–14 mm diam.;

stamens 1.2 mm;

style (1.5–)2–2.8(–3.2) mm.

calyx lobes erect-patent, (3–)4–5 mm, apex obtuse, abaxial surfaces eglandular- or glandular-hairy, rarely glabrous, not ciliate;

corolla white, 6–12 mm diam.;

stamens 1–2 mm;

style 1–2 mm.

compressed in cross section, broadly obcordiform, 4–6 × (5–)6–8.5(–9.5) mm, apex acute, sinus angle (80–)90–120(–150)°, reticulate with prominent veins, ± sparsely to densely eglandular- and/or glandular-hairy or glabrate.

± round in cross section, ovoid to ellipsoid, 2.5–3.5 × 3.5–4.5 mm, apex ± emarginate, eglandular- or glandular-pilose.

(10–)12–18(–20), pale brownish yellow, ellipsoid to globular, cymbiform, (1.3–)1.4–2.3(–2.5) × (0.8–)0.9–1.6(–1.9) mm, 0.5–1 mm thick, cristate-rugose.

1–4, brownish orange, subglobular, urn-shaped (elaiosome inside), (2–)2.5–3.1 × (1.7–)2–2.5(–2.8) mm, 1.1–1.7 mm thick, cristate.

= 28.

= 36, 54 (Eurasia).