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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]
The subfamily Dryadoideae consists of four genera in the family Rosaceae, [1] all of which contain representative species with root nodules that host the nitrogen-fixing bacterium Frankia. [2] They are subshrubs, shrubs, or small trees with a base chromosome number of 9, whose fruits are either an achene or an aggregate of achenes. [1]
Fire blight, also written fireblight, is a contagious disease affecting apples, pears, and some other members of the family Rosaceae. It is a serious concern to apple and pear producers. Under optimal conditions, it can destroy an entire orchard in a single growing season.
Bacteria (prokaryotes, together with Archaea) share many common features. These commonalities include the lack of a nuclear membrane, unicellularity, division by binary-fission and generally small size. The various species can be differentiated through the comparison of several characteristics, allowing their identification and classification.
Within the order Rosales is the family Rosaceae, which includes numerous species that are cultivated for their fruit, making this one of the most economically important families of plants. Fruit produced by members of this family include apples, pears, plums, peaches, cherries, almonds, strawberries, blackberries and raspberries.
Spirochaete bacteria are diverse in their pathogenic capacity and the ecological niches that they inhabit, as well as molecular characteristics including guanine-cytosine content and genome size. [ 11 ] [ 12 ]
There are approximatively 100–160 genera and 3,500–4,000 species in the family Rosaceae. Plants of the World Online currently accepts 108 genera. [1
Subfamilies, genera and species in the rose family Rosaceae. Subcategories. This category has the following 5 subcategories, out of 5 total. ... Rosaceae stubs (3 C ...