Sunday, January 15, 2012

Rose on Thailand’s Stamp - 2010

The Communications Authority of Thailand issued  stamp  features  rose flower on February 5, 2010. The issue stamp only one postage stamp which depicts a red rose . A rose is a woody perennial of the genus Rosa, within the family Rosaceae. There are over 100 species. They form a group of erect shrubs, and climbing or trailing plants, with stems that are often armed with sharp prickles.


The flowers of most species have five petals, with the exception of Rosa sericea, which usually has only four. Each petal is divided into two distinct lobes and is usually white or pink, though in a few species yellow or red.Roses are insect-pollinated in nature.
While the sharp objects along a rose stem are commonly called "thorns", they are technically prickles — outgrowths of the epidermis (the outer layer of tissue of the stem).Rose prickles are typically sickle-shaped hooks, which aid the rose in hanging onto other vegetation when growing over it.

Species, cultivars and hybrids are all widely grown for their beauty and fragrance. Rose plants range in size from compact, miniature roses, to climbers that can reach 7 meters in height. Different species hybridize easily, and this has been used in the development of the wide range of garden roses.

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