Plants perennial. Stems erect, ca. 60 cm, finely striate, retrorse floccose-puberulent. Stem leaves sessile, linear-lanceolate, 2-4 cm × 7-8 mm, puberulent, glandular, base broadly cuneate, margin entire or remotely 1-3-serrate, apex acute to obtuse. Verticillasters axillary, 2-10-flowered, pedunculate; peduncle 2-7 mm; bracts linear, 5-10 × ca. 1 mm, puberulent. Calyx tubular, ca. 1.5 cm; tube ca. 8 mm, incurved, puberulent, conspicuously 15-veined; teeth spiny, posterior teeth triangular, anterior teeth reflexed, lanceolate-triangular. Corolla blue or purple, 2.5-3 cm, pilose; tube 2-2.5 cm, abruptly dilated beyond calyx; upper lip straight, ca. 3 × 8 mm, lobes to 1.5 mm; lower lip reflexed, ca. 5 × 13 mm; middle lobe inversely cordate, base with triangular pulvinate swelling inside, apex emarginate. Nutlets oblong-ovoid, ca. 3 × 2 mm, apex rounded, villous-tufted. Fl. Jul-Sep, fr. Sep-Oct.
Home