Fish Poison Tree. This curious plant grows in sand or sand-mix with lots of water and sun. The stem will reach for up to 60Ft, and the flowers are white. What seems to be a caudex is just the large nut which will disappear by time. The young leaves are a beautiful bronze with pinkish veins. Old leaves turn yellowish. The flowers are delightful puff balls of white stamens tipped with pink. They open at night and attract large moths and nectar-feeding bats with their heavy scent.