Saturday, June 2, 2007

Rafflesia Biggest Flower In The World

Seeing the biggest flower in the world. We were glad that is a blooming one.




Rafflesia is a genus of parasitic flowering plants. It was discovered in the Indonesian rain forest by an Indonesian guide working for Dr. Joseph Arnold in 1818, and named after Sir Thomas Stamford Raffles, the leader of the expedition. It contains 15-19 species (including four incompletely characterized species as recognized by Meijer 1997), all found in southeastern Asia, on the Malay Peninsula, Borneo, Sumatra and Kalimantan, West Malaysia, and the Philippines. The plant has no stems, leaves or true roots. It is an endoparasite of vines in the genus Tetrastigma (Vitaceae), spreading its root-like haustoria inside the tissue of the vine. The only part of the plant that can be seen outside the host vine is the five-petaled flower. In some species, such as Rafflesia arnoldii, the flower may be over 100 cm in diameter, and weigh up to 10 kg. Even the smallest species, R. manillana, has 20 cm diameter flowers. The flowers look and smell like rotting meat, hence its local names which translate to "corpse flower" or "meat flower" (but see below). The vile smell that the flower gives off attracts insects such as carrion flies, which transport pollen from male to female flowers. Little is known about seed dispersal, however, tree shrews and other forest mammals apparently eat the fruits and disperse the seeds. Rafflesia is an official state flower of Sabah in Malaysia, as well as for the Surat Thani Province, Thailand.


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1 comment:

sharmila said...

nice video, i am a botany student, yet i have only studied abt this flower in my book and this is the first time i see it. its interesting.

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