Sunflowers can be used to clean up radioactive waste.
The trunk of the African baobab tree is sometimes as wide as the tree it is high. The tree is pollinated by bats, and the blossoms open only in moonlight.
The rings of a tree are always farther apart on the tree's southern side. Woodsmen often read tree rings to find the compass points.
The poinsettia flower is named after a nineteenth-century ambassador to Mexico, Joel R. Poinsett, who first brought the poinsettia plant to America.
The onion is a lily, botanically.
The General Sherman Tree in Sequoia National Park, California, is the largest tree in the world. It weighs more than 6000 tons.
The flower of the calla lily (Amorphophallus titanum) is 8 feet high and 12 feet wide. It is grown in Sumatra.
The bark of the redwood tree is fireproof. Fires in redwood forests take place inside the trees.
Seedless oranges were not grown in the United States until 1871. The first ones came from Brazil and were planted in California.
Poison oak is not oak; poison ivy is not ivy. Both are members of the cashew family (Anacardiaceae).