Gowardia zebrina is a rare species of fruticose lichen in the family Parmeliaceae.
Found in Canada, it was formally described as a new species in 2020 by the lichenologists Trevor Goward and Leena Myllys.
The type specimen was collected by Goward on Mount Cain (Vancouver Island) at an altitude of 1,440 m (4,720 ft).
Here the lichen was found growing on the lower branches of a hemlock tree.
The specific epithet zebrina refers to the diagnostic alternating pale and dark banding pattern of the terminal branches.