Acantha was a minor character in Greek mythology

Greek mythology

Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...

. She was a nymph

Nymph

A nymph in Greek mythology is a female minor nature deity typically associated with a particular location or landform. Different from gods, nymphs are generally regarded as divine spirits who animate nature, and are usually depicted as beautiful, young nubile maidens who love to dance and sing;...

 loved by Apollo

Apollo

Apollo is one of the most important and complex of the Olympian deities in Greek and Roman mythology...

, the sun god. In one version of the story, Acantha refused Apollo's advances and scratched his face when he tried to rape her. Apollo then turned her into an acanthus

Acanthus (genus)

Acanthus is a genus of about 30 species of flowering plants in the family Acanthaceae, native to tropical and warm temperate regions, with the highest species diversity in the Mediterranean Basin and Asia. Common names include Acanthus and Bear's breeches...

plant. Another version features Acantha as a mortal man who returned Apollo's advances. The matter of Acantha's identity is further confused by the fact that the acanthus plant is not a tree, but a shrub or bush, and therefore is unlikely to have had a nymph associated with it. This may simply indicate that it was perceived to be a tree at the time the myth was created.