Herbs perennial. Rootstocks 2.5-4(-18) mm in diam. Stems erect to ascending, 8-24 cm tall, ± densely retrorse pubescent, sometimes spreading glandular pubescent, much branched. Petiole 0-2 mm; leaf blade lanceolate to linear, 1.5-3.2 cm × 2.5-8 mm, adaxially sparsely appressed pubescent or subglabrous, abaxially ± pubescent, densely yellow glandular, base truncate to broadly cuneate, margin entire and densely ciliolate, apex obtuse. Racemes terminal, 4-7 cm, most parts glandular pilose/pubescent; lower bracts similar to stem leaves, upper ones elliptic to elliptic-ovate, 4-5 mm. Pedicel ca. 3 mm. Calyx ca. 3 mm, to 6 mm in fruit; scutellum 1-1.5 mm, ca. 4 mm in fruit. Corolla yellow-white or white, 2.2-2.5 cm, ± densely glandular pubescent outside, pilose on saccate part inside, conspicuously bent near base, throat to 7 mm wide; middle lobe of lower lip subcircular, ca. 1.3 cm in diam.; lateral lobes ovate, ca. 3 mm wide. Nutlets black, ovoid, tuberculate, adaxially umbonate near base. Fl. May-Aug, fr. Jul-Aug.