Dracocephalum ruyschiana

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Standard Cyclopedia of Horticulture

Dracocephalum Ruyschiana, Linn. (Ruyschiana spicata, Mill.). Perennial, 2 ft.: sts. slightly pubescent: lvs. linear- lanceolate, glabrous: bracts ovate-lanceolate, entire: whorls in somewhat interrupted spikes; fls. 1 in. long, purplish blue or purple; anthers villous. Siberia. Var. japonicum, Hort., has white fls. shaded with blue, and is a distinct improvement. G.C. II. 12:167.—According to Vilmorin, this species has been sold as D. altaiense (see D. grandiflorum). CH The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.

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References

• Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963

External links

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