Flora of North America species comparison

erect or prostrate basally, (20–)30–100(–170) cm, usually thick-fleshy, glabrous.

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

petiole 0–2(–8) mm (basal lateral branches usually distinctly petiolate to 8 mm) proximally, 0 mm distally;

blade (of proximal leaves) ovate, elliptic, or oblong, (15–)30–80(–145) × (7–)10–30(–45) mm, 1.5–3 times as long as wide, base obtuse proximally to cordate-amplexicaul in middle and ± cuneate distally, margins ± serrulate or denticulate, apex acute, surfaces glabrous, rarely glandular-hairy.

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

6–25, axillary, 50–100(–150) mm, 5–10 mm diam., (20–)30–40(–60)-flowered, axis glabrous, rarely glandular-hairy;

bracts linear to lanceolate, 2–5 mm, apex acute.

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.

suberect or arcuate-erect to subpatent, curved upwards in fruit, 3–7(–10) mm, longer than subtending bracts, glabrous or hairy.

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

calyx lobes 2–3 mm, apex acute, glabrous, rarely hairy;

corolla lavender to pale blue, rarely pale lilac, (4–)6–8 mm diam.;

stamens 3–3.5 mm;

style 1.5–2.5 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.

slightly compressed in cross section, globular, (2.5–)3–3.5(–4) × 2.5–3.2(–4) mm, apex rounded or ± emarginate, glabrous or sparsely short glandular-hairy.

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

40–77, yellow-brown, ellipsoid to subglobular, planoconvex, (0.3–)0.5–0.7 × 0.3–0.5 mm, 0.2–0.3 mm thick, smooth.

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

= 36.

= 18.