Flora of North America species comparison

erect to ascending, 1–30(–40) cm, glandular- or eglandular-hairy.

ascending, unbranched, 5–15 cm, densely glandular-hairy.

in 3–6 pairs per stem;

blade oblong to broadly ovate, (2–)5–14(–35) × (2–)3–10(–18) mm, 2.5 times as long as wide, base truncate, margins crenate-serrate, apex obtuse to rounded, surfaces sparsely eglandular-hairy, rarely also glandular-hairy.

blade oblong-elliptic, (5–)10–15(–35) × 4–8 mm, base cuneate, margins entire, apex short-acuminate, surfaces hairy.

1(–3), terminal, 20–150 mm, (5–)15–40(–60)-flowered, axis densely eglandular- and glandular-hairy;

bracts linear-oblong, (3.5–)4–6(–10) mm.

1, terminal, distalmost leaves often with 1 or 2 axillary flowers, 10–80 mm, (3–)5–15-flowered, axis glandular-hairy;

bracts lanceolate, 3–5 mm.

erect, 0–4 mm, shorter than subtending bract, densely eglandular- and glandular-hairy.

erect, 5–8 mm, equal to ± longer than subtending bract, densely glandular-hairy.

calyx lobes (2–)3.5–5(–6) mm, 0.8–2 mm wide, apex acute, glandular-hairy;

corolla sky blue to intense blue, 2–4 mm diam.;

stamens 0.3–0.5 mm;

style (0.2–)0.4–0.6(–1) mm.

calyx 4(or 5)-lobed, lobes (1–)2–3 mm, apex obtuse, glandular-hairy;

corolla pale blue to purple, rotate, 8–10 mm diam.;

stamens 4–5 mm;

style 7 mm.

compressed in cross section, obcordiform, 2–4 × 2.5–5 mm, apex markedly emarginate, glandular-ciliate, otherwise glabrous.

compressed in cross section, broadly oblong, 5–6 × 3.5 mm, longer than wide, apex emarginate, glandular-hairy.

10–30, yellowish, ovoid, flat, 0.7–1.7 × 0.4–1 mm, 0.2–0.4 mm thick, rugose.

number unknown, brown, ovoid, flat, 1–1.2 × 0.7–1.1 mm, thickness and texture unknown.

= 16.

= 18.