Rosa gigantea

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Rosa gigantea
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Rosa gigantea.jpg
Plant Info
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Kingdom: Plantae
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Division: Magnoliophyta
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Class: Magnoliopsida
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Order: Rosales
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Family: Rosaceae
Subfamily: Rosoideae
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Genus: Rosa
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Species: R. gigantea
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Binomial name
Rosa gigantea
Collett ex Crép.
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Type Species

Rosa gigantea is a species of rose native to northeast India, northern Myanmar and southwest China (Yunnan) in the foothills of the Himalaya at 1000-1500 m altitude. As its name suggests, it is the largest species of rose, climbing 20 m or more into the crowns of other trees by means of its stout, hooked thorns, and with a trunk up to 50 cm diameter. The leaves are semi-evergreen, 15-25 cm long, pinnate, with usually 7 leaflets, each leaflet 4-8 cm long. The flowers are white, creamy or yellow, the largest of any wild rose, 10-14 cm diameter. The hips are yellow or orange, 2.5-3.5 cm diameter, hard, and often lasting through the winter into the following spring, often still present at the same time as the next years' flowers.

Another rose, described from Manipur in 1888 as R. macrocarpa and R. xanthocarpa by Sir George Watt, an authority on Indian roses, is now generally considered to be the same species as R. gigantea. The distinct characteristics claimed for R. macrocarpa (deeper yellow flowers, larger foliage with 4 to 7 leaflets and large yellow fruits) are not consistent.

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