Cornus is a genus of about 30–60 species of woody plants in the family Cornaceae, commonly known as dogwoods. Most aredeciduous trees or shrubs, but a few species are nearly herbaceous perennial subshrubs, and a few of the woody species are evergreen. Several species have small heads of inconspicuous flowers surrounded by an involucre of large, typically white petal-like bracts, while others have more open clusters of petal-bearing flowers. The various species of dogwood are native throughout much of temperate andboreal Eurasia and North America, with China and Japan and the southeastern United States particularly rich in native species.

In the Victorian Era, flowers or sprigs of dogwoods were presented to unmarried women by male suitors to signify affection. The returning of the flower conveyed indifference on the part of the woman; however, if she kept it, it became a sign of mutual interest.

The term “dogwood winter”, in colloquial use in the American Southeast, is sometimes used to describe a cold snap in spring, presumably because farmers believed it was not safe to plant their crops until after the dogwoods blossomed. (http://en.wikipedia.org/wiki/Cornus_(genus)