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Dracocephalum bipinnatum var. biflorum C.Y. Wu
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Flora of China Editorial Committee. 1994. Flora of China (Verbenaceae through Solanaceae). 17: 1–378. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
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Dracocephalum bipinnatum var. brevilobum C.Y. Wu & W.T. Wang
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Flora of China Editorial Committee. 1994. Flora of China (Verbenaceae through Solanaceae). 17: 1–378. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
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Dracocephalum ruprechtianum Regel
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Flora of China Editorial Committee. 1994. Flora of China (Verbenaceae through Solanaceae). 17: 1–378. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
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Nasir, E. & S. I. Ali (eds). 1980-2005. Fl. Pakistan Univ. of Karachi, Karachi.
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Dracocephalum ruprechtii Regel
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Flora of China Editorial Committee. 1994. Flora of China (Verbenaceae through Solanaceae). 17: 1–378. In C. Y. Wu, P. H. Raven & D. Y. Hong (eds.) Fl. China. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.
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Nasir, E. & S. I. Ali (eds). 1980-2005. Fl. Pakistan Univ. of Karachi, Karachi.
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