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- The giant puffball, lycoperdon giganteum, produces 7,000,000,000,000 spores, each of which could grow into a puffball a foot in diameter and collectively cover an area of 280,000 square mile, greater than the size of Texas. Fortunately, only one of the spores actually becomes a puffball, and all the others die.
- The slippers plant (bulbo stylis) of Haiti looks like a pair of fuzzy slippers.
- The primary purpose of growing rice in flooded paddies is to drown the weeds surrounding the young seedlings. Rice can, in fact, be grown in drained areas.
- The fragrance of flowers is due to the essences of oil which they produce.
- While known as a painter, sculptor, architect, and engineer, Leonard da Vinci was the first to record that the number of rings in the cross section of a tree trunk revealed its age. He also discovered that the width between the rings indicated the annual moisture.
- The bark of a redwood tree is fireproof. Fires that occur in a redwood forest take place inside the trees.
- A plant in central Australia, the candlesticks of the sun, grows a candle-shaped flower once every 7 years.
- The woman's tongue of Zanzibar is a plant with pods full of seeds which rattle continuously.
- The Siberian larch accounts for more than 20% of all the worlds trees.
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