What are the characteristics of plants with the name "Wei"?

Roses are deciduous shrubs of Rosaceae. There are 200 kinds of roses, including rose, rose and rose. There are 82 kinds of roses in China, among which R. Multiflora, R. Giganiea and Rosa davurica are often crossed with Chinese rose to cultivate ornamental roses and Chinese rose.

Rosa roxburghii is a creeping shrub with short and slightly curved thorns on its branchlets. Feather compound leaves, 5-9 leaflets, even petiole 5- 10 cm long, stipules dentate, leaflets obovate, oblong, serrated, glabrous at the top and pilose at the bottom. Petiole and axis have scattered glandular hairs. Flowers are bisexual, arranged in panicles in clusters, with flower diameter of 1, 5 ~ 2 cm, 5 sepals, lanceolate, 5 petals, white, broadly obovate, and slightly concave at the apex; Stamens are numerous, and styles are combined into bundles. The fruit is nearly spherical, smooth, 6-8 mm in diameter and reddish brown. The flowering period is May-June, and the fruiting period is 9-65438+1October.

Roses are widely distributed in the northern hemisphere from the cold temperate zone to the subtropical zone. China's North China, the Yangtze River basin, South China mountainous areas are all distributed, and there are wild roses in Shan Ye, streams, forest roadsides and other places.

There are many varieties and varieties of roses, and the names of different places are different. Usually, Rosa is just a general term. Common old varieties are Bai Yutang, with white flowers and double petals; Lotus rose, pink, double; Pink rose (variety. Large pattern, pink to rose, single; Seven Sisters (F.) has thick stems, creeping leaves, deep red flowers, double petals and fragrance. Huang Qiangwei is golden or yellow, and it is loved by horticulture. Now some people divide all kinds of roses into perfume roses, red-branch roses and pale-leaf roses. The former is similar to perfume rose, which has a strong appreciation of flowers. The existing rose colors are white, pink, red, scarlet, yellow and purple. There are large and small flowers, single petals, double petals and fragrant flowers, but they are all overgrown with branches and semi-climbing.