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Rosa banksiae Rosa persica. There are currently four subgenera in Rosa, although there have been some disputes over the years. [3] The four subgenera are: Hulthemia (formerly Simplicifoliae, meaning "with single leaves") containing one or two species from Southwest Asia, R. persica and R. berberifolia (syn. R. persica var. berberifolia) which are the only species without compound leaves or ...
Rosaceae (/ r oʊ ˈ z eɪ s iː. iː,-s i. aɪ,-s i. eɪ /), [5] [6] the rose family, is a family of flowering plants that includes 4,828 known species in 91 genera. [7] [8] [9] The name is derived from the type genus Rosa. The family includes herbs, shrubs, and trees. Most species are deciduous, but some are evergreen. [10]
The firm originally sold a variety of plants, seeds, bulbs and trees, including azaleas, rhododendrons and peach and apricot trees. With the rise in popularity of roses in the mid 1800s, Benjamin R. Cant (1827-1900) initiated a rose breeding program in 1875. By 1880, Cant had become a very successful rose exhibitor in England. [1] [2]
In 2002 Plantlife conducted a "County Flowers" public survey to assign flowers to each of the counties of the United Kingdom and the Isle of Man. [1] The results of this campaign designated a single plant species to a "county or metropolitan area" in the UK and Isle of Man. [2] Some English counties already had flowers traditionally associated with them before 2002, [3] and which were ...
The plant is present in extensive areas of pasture and tussock grasslands in the Otago and Canterbury regions, where the seeds are spread by cattle, possums and birds that eat the hips. Growth from seed is aided by the reduction in competing pasture by rabbits. [15] It is listed as a Category 1 Declared Weed in South Africa. These plants may no ...
The dog rose is a deciduous shrub normally ranging in height from 1–5 metres (3 + 1 ⁄ 2 – 16 + 1 ⁄ 2 ft), though it can scramble higher into the crowns of taller trees. Its multiple arching stems, [2] are covered with small, sharp, hooked prickles, which aid it in climbing.
Roses are also used as food plants by the larvae of some Lepidoptera (butterfly and moth) species; see list of Lepidoptera that feed on roses. Spraying with insecticide of roses is often recommended but if this is done care is needed to minimize the loss of beneficial insects; systemic insecticides have the advantage of only affecting insects ...
Rosa multiflora is grown as an ornamental plant and also used as a rootstock for grafted ornamental rose cultivars. In eastern North America , Rosa multiflora is considered an invasive species . It was originally introduced from Asia as a soil conservation measure, as a natural hedge to border grazing land, and to attract wildlife.