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Giant, stinky 'corpse flower' (titan arum) to bloom this week

Good news for fans of the smelly titan arum or the 'corpse flower' as it is better known. It is set to bloom later this week.

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What's that awful smell? It's the titan arum or the 'corpse flower.' The monstrous corpse flower can grow up to 20 feet tall and smells like rotting meat.

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A rare behemoth flower — dubbed the "corpse flower" for its rotting-meat smell — is set to bloom at Western Illinois University this week. It's one of a small group of these flowers that have bloomed in cultivation since the 1880s.

As of Monday, the mega flower (one of four in the university's greenhouse), was 44.5 inches (113 centimeters) tall, having grown nearly 4 inches (about 5.7 cm) in 24 hours. In the wild, the plant can grow as big as 20 feet (6 meters) tall and 15 feet (4.5 meters) across.

"The Titans in the WIU Botany Greenhouse will only get about half that in size," said Jeff Hillyer, greenhouse gardner at WIU.

IN PICTURES: The Corpse Flower

First corpse discovered

The flower, whose scientific name is Amorphophallustitanum and is also know as Titan Arum, is native to the equatorial rainforests of central Sumatra in western Indonesia.

It was first discovered in 1878 by Italian botanist Odoardo Beccari, who collected the seeds and provided them to England's Royal Botanic Gardens in Kew, which recorded the first bloom of this species in cultivation in 1889. The first bloom of this species in the United States occurred at the New York Botanical Gardens in June 1937.

The seeds for the Western Illinois University plant were collected in 1993 by James Symon in Sumatra while filming for Sir David Attenborough's BBC documentary "The Private Life of Plants." The plants that WIU has grown from those seeds are among the first generation of plants cultivated in the United States. (That means they are essentially from the 1930s.)

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"When one of these plants bloomed at the University of Wisconsin-Madison, more than 30,000 people viewed its splendor. It's extremely exciting that Western's greenhouse is housing the first generation of this flower grown in the U.S.," Hillyer said. "It is pretty cool to have it in all three conditions: dormant, vegetative growth and flowering, at the same time for all to see. This is a wonderful opportunity for our students to work with a rare species."

Putrid plant basics

For most of its life, the corpse flower grows vegetatively, only producing a single, umbrella-like leaf, Hillyer explained.

The bloom (or inflorescence) of the flower is actually composed of thousands of flowers. The flower's nickname comes from the odor of the bloom, which smells like rotting meat.

In its native environment, the Titan Arum is pollinated by carrion beetles and flesh flies, which are attracted to the horrendous odor. The flower is a member of the Araceae family that includes plants such as Jack-in-the-Pulpit, Calla Lilly and Philodendron.

Though corpse flowers are heavyweights, they don't reach the size of another hefty type of flower, called rafflesias, whose petal-to-petal girth can reach 3 feet (just under a meter) and that can weigh 15 pounds (6.8 kilograms).

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