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FOC | Family List | FOC Vol. 17 | Lamiaceae | Dracocephalum

10. Dracocephalum peregrinum Linnaeus, Cent. Pl. 2: 20. 1756.

刺齿枝子花 ci chi zhi zi hua

Dracocephalum politovii Gandoger.

Stems erect, 15-25 cm, minutely retrorse hairy, branched basally. Petiole of cauline leaves 2-3 mm; leaf blade ovate-lanceolate to lanceolate, 1.5-2.2 cm × 3.5-5.5 mm, ± leathery when dry, sparsely minute hairy, base cuneate, margin ciliolate, short spinescent-denticulate with spines 0.4-0.8 mm, apex acute, short spinescent. Verticillasters 4-6-flowered, in 4-7 upper nodes; bracts elliptic-ovate, 3-6 mm, margin 1- or 2-spinescent-denticulate, with spines ca. to 1 mm. Calyx purple, 1-1.3 cm, minutely hairy, ciliolate, conspicuously 2-lipped to ca. 1/2 its length; upper lip teeth divisions 1/4 its length, teeth subequal, triangular-ovate, apex with spines slightly shorter than teeth; lower lip teeth divisions more than 1/2 its length, teeth lanceolate, apex needlelike-acuminate. Corolla blue-purple, 2.2-2.8 cm, sparsely pubescent. Fl. Jun-Aug.

Rocky crevices on alpine grasslands. ? Gansu, Xinjiang (Toli Xian) [Kazakhstan, Mongolia, Russia].


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