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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 the stem 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.

Rose (rose hips) from Rosa canina
Flowers produce an aggregate fruit (evolved from one flower with many pistils) called rose hips. Each pistil develops into a single fruit (achene), while a single fruit collection is wrapped in fruit flesh on the outside. Species with wide open flowers are more inviting the arrival of bees or other insects that help pollinate so tend to produce more fruit. Rose breeding yields flowers whose crown leaves seal tightly making it difficult to pollinate. Some roses are red with some exceptions such as Rosa pimpinellifolia that produce dark purple to black fruits.

In some species such as Rosa canina and Rosa rugosa produce very rich rose hips with vitamin C even among the richest natural vitamin C sources. The rose hips are favored by fruit-eating birds that help spread the seeds of roses with impurities removed. Some bird species like the Finch also eat the seeds of roses.

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 thorns straight like needles that might serve to reduce the damage caused by animals, to keep the sand from the wind and protect the roots from erosion. Although it is protected by thorns, deer do not seem afraid and often damage the roses. Some species of roses have undeveloped thorns and are not sharp.

Roses can be infected with several diseases such as rust leaves which is the most serious disease. The cause is a fungus Phragmidium mucronatum which causes leaf loss. Less dangerous diseases such as Mildew Flour are caused by the Sphaerotheca pannosa fungus, whereas the Black Spotted disease is characterized by black spots on the leaves caused by the Diplocarpon rosae fungus. Roses are also a food for larvae of several species of Lepidoptera

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