Leitneria floridana

The corktree in the Simaroubaceae family is found only in the southeastern United States (the states of Arkansas, Florida, Georgia, Missouri and Texas). It reaches up to occasionally 8 m tall.

It is an uncommon to rare species and grows in damp habitats, mostly in coastal areas and has extremely light wood with a density less than that of cork; in swamps, trunks are often swollen at the base.

• Leaves are alternate, elliptic-oblong to lanceolate, 5–20 cm long and 3–6 cm broad, green to olive colour, gray-hairy beneath and crowded near the branch tips.
• Plant is dioecious (separate male and female plants), producing catkins similar to poplar; male catkins are brownish and female catkins are reddish, appearing in March before the leaves emerge.
• Fruit is an oblong single-seeded light olive-brown drupe to 1.4 cm in late spring.
• Bark is reddish, with lighter colored lenticels.