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Nepeta stewartiana

Description from Flora of China

Dracocephalum stewartianum (Diels) Dunn.

Plants perennial. Stems 0.5-1.5 m, glabrescent. Petiole 0.5-2 cm, 2-3 mm in upper leaves; leaf blade oblong to lanceolate, 6-10 × 2-2.5 cm, adaxially olive green, abaxially whitish pubescent, mixed with yellow glands, base rounded to broadly cuneate, margin crenulate-serrate, apex acute to ± obtuse. Verticillasters ± sessile apically; peduncle ca. 5 mm; bracts linear-lanceolate, shorter than calyx, densely puberulent, glandular. Calyx 1-1.4 cm, dilated in fruit, densely glandular puberulent, throat very oblique; adaxial teeth joined for ca. 2/3 their length, lanceolate triangular, 1.5-1.8 mm, apex acute; teeth of lower lip narrow lanceolate, ca. 5 mm, apex acuminate. Corolla purple or blue, 2-2.5 cm, sparsely pubescent; tube slightly incurved, ca. 2 × as long as calyx, gradually dilated into broad throat; upper lip deeply divided into 2 obtuse lobes; middle lobe of lower lip elliptic, ca. 5 × 10 mm, base bearded inside, apex sinuate; lateral lobes semicircular, ca. 4 mm wide. Posterior stamens slightly shorter than upper lip of corolla. Nutlets brown, oblong, somewhat flattened, ca. 2.6 × 1.3 mm, adaxially ribbed, glabrous. Fl. Aug-Oct, fr. Sep-Nov.

* Grassy slopes, forests; 2700-3300 m. Sichuan, Xizang, Yunnan.


 

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