Lichens are unique organisms created by algae and fungi that grow together using each other to survive. This type of lichen forms a crust-like growth on the tree’s bark. Its red and green colors give the appearance of a Christmas wreath for which it has been named.
Normally found in subtropical or tropical regions growing on the sides of trees, especially oaks and cypress in less dense, more open woods and swamps.
Because most lichens are extremely vulnerable to air pollution, their disappearance gives early warning of harmful conditions. More than 15,000 lichens
can be found in our world.
Where to find Christmas Lichen on the Louisiana State Arboretum Trails:
WAB - Walker Branch Trail 10.0
Refer to our Live Map to locate this species and its interpretative signage on the trail system.