The Latin name is Rosa, the sub species is the second word, for example Rosa centifolia, Rosa canina, etc.
2006-08-28 06:26:22
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answer #1
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answered by Gavin T 7
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Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Rosales
Family: Rosaceae
Subfamily: Rosoideae
Genus: Rosa L.
2006-08-28 13:30:29
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answer #2
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answered by Lee 4
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The name originates from Latin rosa, borrowed through Oscan from colonial Greek in southern Italy rhodion (Aeolic wrodion), from Aramaic wurrdÄ, from Assyrian wurtinnu, from Old Iranian *warda (cf. Avestan warda, Sogdian ward, Parthian wâr).
The leaves of most species are 5–15 cm long, pinnate, with (3–) 5–9 (–13) leaflets and basal stipules; the leaflets usually have a serrated margin, and often a few small thorns on the underside of the stem. The vast majority of roses are deciduous, but a few (particularly in southeast Asia) are evergreen or nearly so.
The flowers of most species roses have five petals (with the exception of Rosa sericea which often has only four), usually white or pink, in a few species yellow or red. The ovary is inferior, developing below the petals and sepals.
Rosa canina hipsThe aggregate fruit of the rose is a berry-like structure called a rose hip. Rose species that produce open-faced flowers are attractive to pollinating bees and other insects, thus more apt to produce hips. Many of the domestic cultivars are so tightly petalled that they do not provide access for pollination. The hips of most species are red, but a few (e.g. Rosa pimpinellifolia) have dark purple to black hips. Each hip comprises an outer fleshy layer, the hypanthium, which contains 5–160 "seeds" (technically dry single-seeded fruits called achenes) embedded in a matrix of fine, but stiff, hairs. Rose hips of some species, especially the Dog Rose (Rosa canina) and Rugosa Rose (Rosa rugosa), are very rich in vitamin C, among the richest sources of any plant. The hips are eaten by fruit-eating birds such as thrushes and waxwings, which then disperse the seeds in their droppings. Some birds, particularly finches, also eat the seeds.
Most roses have thorns or prickles. The thorns are typically sickle-shaped hooks, which aid the rose in hanging onto other vegetation when growing over it. Some species such as Rosa rugosa and R. pimpinellifolia instead have densely packed straight spines, probably an adaptation to reduce browsing by animals, but also possibly an adaptation to trap wind-blown sand and so reduce erosion and protect their roots (both of these two species grow naturally on coastal sand dunes). Despite the presence of the thorns, roses are frequently browsed by deer. A few species of roses only have vestigial thorns that have no points.
2006-08-28 13:57:05
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answer #3
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answered by Amrouch 2
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