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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]
Each flower, measuring about 8 centimetres (3 in) wide, has large petals and many stamens. [5] The fruit appears later in the summer as bright red rose hips. [6] Setigera's range overlaps with several other Rosa species, as well as some invasives. It can be differentiated from Rosa Multiflora by its tendency to have pink flowers.
Macrosiphum rosae, the rose aphid, is a species of sap-sucking aphids in the subfamily Aphidinae. [1] [2] They have a world-wide distribution and infest rosebushes as the main host in spring and early summer, congregating on the tips of shoots and around new buds.
Its fruit is a red rose hip containing hard tan achenes that contain the seeds. The sepals fall away from the hip earlier than in other species of rose, hence the name baldhip rose. The leaves are pinnately compound, alternate, with 5 to 9 leaflets, each of which are 1 to 4 cm. Leaflets are elliptic to ovate to round. [3]
Rosa woodsii is a perennial [4] bushy shrub which grows up to 3 metres (10 feet) tall. The shrubs can form large, dense thickets. The plant reproduces sexually by seed and vegetatively by sprouting from the root crown, layering, and by producing root suckers. [1] The stems are straight, red to grey-brown and studded with prickles. [3]
Rosa nutkana, the Nootka rose, [3] bristly rose, or wild rose is a 0.6–3.0-metre-tall (2–10-foot) perennial shrub in the rose family . [4] [5] [6] The species name nootka comes from the Nootka Sound of Vancouver Island, where the plant was first described. [7] This plant is native to Western North America. [6]
The leaves are pinnate, have 3–5 leaflets, each 2.5–6 cm long and 1–3 cm broad. In the wild species (sometimes listed as Rosa chinensis var. spontanea), the flowers have five pink to red petals. The fruit is a red hip one to two cm in diameter. The strong branches have a smooth purplish-brown bark, and there may be many to no curved ...