Flora of North America species comparison

erect or ascending, (2.5–)4–25(–35) cm, glabrous or densely glandular-hairy.

decumbent or ascending, 5–50 cm, glabrous.

blade oblanceolate proximally, narrowly oblong distally, 5–28(–35) × 2–6(–10) mm, 3–10 times as long as wide, base cuneate, margins entire or dentate distally, apex acute, surfaces glabrous or densely glandular-hairy.

petiole 2–6(–10) mm;

blade ovate to lanceolate, widest proximal to middle, (5–)30–50(–100) × (3–)7–20(–30) mm, 2–4 times as long as wide, base truncate, rounded or almost cordate, abruptly turning into petioles, margins entire or serrate, apex obtuse-orbicular or acute, surfaces glabrous.

1, terminal, sometimes 1 or 2 axillary, 20–200 mm, (2–)5–40-flowered, axis glabrous or densely glandular-hairy;

bracts spatulate to linear-lanceolate, 3–22 mm.

1–8, axillary, 30–100 mm, (3–)10–30-flowered, axis glabrous;

bracts lanceolate, 3–6 mm.

erect, 0.2–1(–2) mm, much shorter than subtending bract, glabrous or densely glandular-hairy.

patent, 3–10(–12) mm, equal to ± longer than subtending bract, glabrous.

calyx lobes (2–)3–6 mm, 0.9–2 mm wide, apex obtuse to acute, glabrous or densely glandular-hairy;

corolla white or pale pink, 2–5 mm diam.;

stamens 1 mm;

style 0.1–0.5 mm.

calyx lobes 2–5(–6) mm, apex acute, glabrous;

corolla pink or sky blue, 4–10 mm diam.;

stamens 2–4 mm;

style (1.7–)2.5–3.5(–4) mm.

strongly compressed in cross section, obcordiform, 2.5–5 × 2.5–6 mm, apex ± emarginate, glabrous.

slightly compressed in cross section, globular, 2–4 × 3–5 mm, apex not or ± emarginate, glabrous.

12–140, yellow or pale brown, oblong, flat, 0.6–1.6 × 0.4–0.9 mm, 0.1–0.2 mm thick, smooth.

20–30, brownish, ellipsoid to ovoid, indistinct-compressed or planoconvex, 0.5–0.7 × 0.3–0.6 mm, thickness varies due to compression in capsule, indistinctly wrinkled or ± rugose.

= 52.

= 36.