Nepeta sibirica L.

Source of an essential oil. Cultivated as an ornamental.

Herbs perennial. Stems numerous, ca. 40 cm, puberulent, glandular. Petiole 3-7 mm, 1.5-1.7 cm in basal leaves; leaf blade triangular-oblong to triangular-lanceolate, 3.4-9 × 1.2-2.2 cm, adaxially sparsely puberulent, abaxially densely yellow glandular, veins pubescent, base shallowly cordate, margin denticulate, apex acute. Verticillasters lax, on apical part of stem, 9-15 cm; peduncle 5-8 mm; bracts linear, 2.5-3 mm, pubescent, ciliate. Pedicel ca. 1 mm. Calyx 9-10 mm, densely glandular pubescent, throat very oblique; teeth joined for 1/3-1/2 their length, lanceolate-triangular, apex acuminate; teeth of lower lip separated to base, longer, narrower, apex acute. Corolla blue or bluish, 2-2.9 cm, sparsely pubescent; tube nearly straight, narrow, abruptly dilated into throat ca. 6 × 6 mm; lobes of upper lip ca. 1/2 as long as upper lip, elliptic, apex obtuse; middle lobe of lower lip reniform, deeply sinuate, margin coarsely crenate; lateral lobes ovate to ovate-triangular. Nutlets unknown. Fl. Aug-Sep.

Gansu, Nei Mongol, Ningxia, Qinghai [Mongolia, Russia]

Hillsides; 1800-2700 m.

Dracocephalum sibiricum (Linnaeus) Linnaeus; Moldavica elata Moench; M. sibirica (Linnaeus) Moench ex Steudel; Nepeta macrantha Fischer.

Nepeta sibirica, the Siberian catmint, is a species of flowering plant in the mint family Lamiaceae, native to Siberia.

Growing to 1 m (3.3 ft) tall by 1.5 m (4.9 ft) broad, it is an erect aromatic herbaceous perennial with whorls of violet flowers for an extended period in summer. The synonym Dracocephalum sibiricum indicates the shape of the flowers, which resemble a dragon's head.

It prefers a well-drained, moist soil in a sunny southerly or westerly aspect.

The cultivar 'Souvenir d'André Chaudon' has gained the Royal Horticultural Society's Award of Garden Merit.

Nepeta sibirica là một loài thực vật có hoa trong họ Hoa môi. Loài này được L. mô tả khoa học đầu tiên năm 1753.

大花荆芥（学名：Nepeta sibirica）为唇形科荆芥属下的一个种。