Dracocephalum rupestre Hance
EOL Text
Hebei, Liaoning, Nei Mongol, Qinghai, Shanxi
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Rhizomes to 1 cm in diam. Stems purplish, numerous, ascending, 15-42 cm, unbranched, sparsely retrorse pubescent. Basal leaves numerous, mostly persistent after anthesis; petiole 3-15 cm, white patent-villous; leaf blade triangular-ovate, 1.4-5.5 × 1.2-4.5 cm; mid cauline leaves petiole 2-6 cm, blade 2.2-3.5 cm, sparsely villous, base cordate, margin crenate-serrate, apex obtuse. Verticillasters in terminal capitula or rarely spikes to 9 cm; floral leaves reduced, subsessile or with sheathlike petiole 4-8 mm; bracts lanceolate to obovate, 0.7-1.6 cm, margin sparsely pubescent, ciliate, 2-6-spinescent-serrulate with spines to 2 mm. Calyx purplish, 2-2.4 cm, pubescent, ciliate, 2-lipped to 2/5 its length; upper lip with teeth divisions to lip base, middle tooth obovate-elliptic, ca. 2 × as wide as lateral teeth, apex short acute-acuminate; lateral teeth lanceolate, apex acute-acuminate; lower lip teeth narrowly lanceolate. Corolla purple-blue, 3.8-4 cm, pubescent, middle lobe of lower lip smaller. Fl. Jul-Sep.
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* Alpine meadows, grassy slopes, sunny areas in sparse forests; 700-3100 m.
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Dracocephalum rupestre is a plant species in the genus Dracocephalum, endemic to China.[2][3] The specific epithet, "rupestre", is derived from Latin, and pertains to the plant growing among rocks.[citation needed]
Description[edit]
Dracocephalum rupestre is a rhizomatous herb having numerous purplish, upwards-rising and unbranching stems (15–42 cm) scantily covered in backward-pointing hairs. Triangular-ovate, sparsely villous leaves (1.4–5.5 × 1.2–4.5 cm) are numerous. Inflorescences are verticillastrate with bluish-purple petalled flowers.[4] Flowering period is from July–September.[4]
Habitat and distribution[edit]
The habitats of Dracocephalum rupestre are mountain meadows and slopes, or areas of thinning forest where more sun reaches the surface, at elevations between 700 and 3100 meters.[4] They are native to China; occurring in Hebei, Inner Mongolia, Liaoning, Qinghai, and Shanxi provinces.[4][5]
Uses[edit]
People in Hebei and Shanxi have used Dracocephalum rupestre as a tea substitute, and in gardens for their showy flowers.[4]
References[edit]
- ^ Dracocephalum rupestre was originally described and published in Journal of Botany, British and Foreign 7(79): 166. 1869. "Name - Dracocephalum rupestre Hance". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved November 16, 2012.
- ^ Kew World Checklist of Selected Plant Families
- ^ Flora of China Vol. 17 Page 132 毛建草 mao jian cao Dracocephalum rupestre Hance, J. Bot. 7: 166. 1869.
- ^ a b c d e "Dracocephalum rupestre Hance in Lamiaceae, Dracocephalum". Flora of China (eFloras) 17: 132. Retrieved November 16, 2012.
- ^ "Name - Dracocephalum rupestre distribution". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden. Retrieved November 16, 2012.
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Used in Hebei and Shanxi as a substitute for tea. Also used as an ornamental herb for its large, purple-blue flowers.
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