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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]
In some plants such as Narcissus, the lower part of the petals or tepals are fused to form a floral cup above the ovary, and from which the petals proper extend. [ 4 ] [ 5 ] [ 6 ] A petal often consists of two parts: the upper broader part, similar to a leaf blade, also called the blade; and the lower narrower part, similar to a leaf petiole ...
Centifolia roses are also known as Cabbage roses, or as Provence roses. They are derived from Rosa × centifolia, a hybrid that appeared in the 17th century in the Netherlands, [14] related to damask roses. They are named for their "one hundred" petals; they are often called "cabbage" roses due to the globular shape of the flowers.
In plant taxonomy, which is the study of the classification and identification of plants, the morphology of plant's flowers are used extensively – and have been for thousands of years. Although the history of plant taxonomy extends back to at least around 300 B.C. with the writings of Theophrastus , [ 124 ] the foundation of the modern ...
Plants with semidouble deep pink flowers have been treated as either a variety, under the name R. gallica var. officinalis, [6] or as a cultivar, R. gallica 'Officinalis'. [7] It is also called the apothecary's rose, the crimson damask rose, or the red rose of Lancaster. [8] It is the county flower of Lancashire.
The species is extensively cultivated as an ornamental plant, and numerous cultivars have been selected, which are known as the China roses. It has also been extensively interbred with Rosa gigantea to produce Rosa × odorata and by further hybridization the tea roses and hybrid tea roses, and is the source of summer-blooming varieties and ...
The specific epithet rosa-sinensis literally means "rose of China", although the plant is not closely related to true roses, nor is it from China. [10] The genus Hibiscus is in the tribe Hibisceae and the subfamily Malvoideae of the family Malvaceae. [11] The origin of the species has long been unknown; it has never been found out of cultivation.
The "double-flowered" characteristic is denoted in the scientific names of the varieties by the abbreviation fl. pl. (flore pleno, meaning "full flowering"). [30] It has been the first abnormality to be documented in flowers and one of the most popular characters in many ornamental species, such as rose bush, camellia and carnation.