Roses are a kind of bush plant of the genus Rosa as well as the name of the flower produced by this plant. Wild roses are composed of over 100 species, mostly grown in the cool cool northern hemisphere. The rose species are generally bushes of thorns or climbing plants that can reach up to 2 to 5 meters tall. Although rarely encountered, the height of rose plants that propagate in other plants can reach 20 meters.
Most species have leaves that are between 5-15 cm long with two or two opposites (pinnate). Leaf compound which each leaf consists of at least 3 or 5 to 9 or 13 leaflets and leaf-shaped limbs (stipula) are oval, pinnate bone, edges of beringgit edges, tapered at the tip of the leaf and spiked on stems close to the ground. Roses are not actually tropical plants, most of the species threshing the leaves and only a few species in Southeast Asia are always green leafy throughout the year.
The flowers consist of 5 pieces of crown leaves with the exception of Rosa sericea which only has 4 pieces of crown leaf. Among the colors that are owned by roses are white, pink, yellow and blue in some species. Ovary is at the bottom of the crown and leaves of the petals
In general, roses have a hook-shaped spine that serves as a handle when climbing other plants. Some species that grow wild in sandy soils in coastal areas such as Rosa rugosa and Rosa pimpinellifolia adapt to straight thorns such as needles that might serve to reduce the damage caused by animal feeding, retaining wind-blown sand and protecting the roots from erosion. Although it is protected by thorns, deer do not seem afraid and often damage the rose plants. Some species of roses have undeveloped thorns and are not sharp.