Herbs perennial, 10--20 cm tall, aromatic when dry. Stems ascending to erect from creeping base, young parts minutely brownish glandular. Leaves alternate, ± crowded toward apex of stem; upper leaves often 2--3 X as large as lower leaves; petiole 4--10 mm; leaf blade broadly ovate to subrhomboid, 2.5--5 X 1--2.5 cm, glabrous, base short attenuate to subrounded or truncate, margin obscurely undulate, apex acute; veins 4 or 5 pairs; veinlets prominent abaxially. Pedicel 1.4--4 cm. Flowers solitary, in axils of upper leaves. Calyx lobes triangular-lanceolate to subulate, ca. 2.5 mm, sparsely glandular on margin. Corolla yellow, ca. 1.2 cm in diam., deeply parted; lobes narrowly oblong, 2--3 mm wide, apex obtuse. Filaments connate basally into a ca. 0.5 mm high ring, free parts ca. 1 mm; anthers ca. 2.5 mm, basifixed, opening by apical pores. Style 4--5 mm. Capsule globose, 4--5 mm in diam, indehiscent. Fl. May.
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