Roses for valentine day
There are over three hundred species and tens of thousands of cultivars. The leaves are borne alternately on the stem. The flowers of most species roses for valentine day five petals, with the exception of Rosa sericea, which usually has only four.
Each petal is divided into two distinct lobes and is usually white or pink, though in a few species yellow or red. The aggregate fruit of the rose is a berry-like structure called a rose hip. Many of the domestic cultivars do not produce hips, as the flowers are so tightly petalled that they do not provide access for pollination. The oldest remains of roses are from the Late Eocene Florissant Formation of Colorado.
Roses were present in Europe by the early Oligocene. Today’s garden roses come from 18th-century China. Among the old Chinese garden roses, the Old Blush group is the most primitive, while newer groups are the most diverse. This section needs additional citations for verification.