Shrubs, evergreen, 2–6 m. Stems erect or ascending, not rooting at nodes; branchlets grayish green to brown, not thorn-tipped, usually round, sometimes ± angled, in cross section, flexible, lanate to woolly, glabrescent. Leaves: petiole 1–8 mm; blade flat to slightly cupped, oblong or ± elliptic, 12–50 × 6–20 mm, base obtuse to rounded, margins entire or obscurely glandular-denticulate, narrowly revolute, glands 21–36, apex obtuse, abaxial surface green, cobwebby, soon glabrescent, adaxial surface dark green, shiny, villosulous, glabrescent; usually 3-veined from base, rarely pinnately veined. Inflorescences axillary or terminal, paniclelike, 5–15 cm. Flowers: sepals, petals, and nectary deep blue. Capsules 2.5–4 mm wide, lobed; valves smooth, not or weakly crested. 2n = 24.
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