Cyclobalanopsis
In coastal Florida's evergreen oak scrub, the Sand Live Oak is a ubiquitous and abundant species; the threatened Florida scrub-jay is found only in Florida scrub. Live oaks, having characteristics of the sand live oak and the southern live oak ("Q. virginiana"), grow further inland. It is believed that these specimens are hybrids of "Q. geminata" and "Q. virginiana". While hybridization does occur between "Q. geminata" and "Q. virginiana," the two species are genetically and morphologically distinct. The Cuban oak, "Q. sagraeana", has been purported to be a hybrid between the sand live oak and "Q. oleoides", but recent evidence suggests that the Cuban oak is a separate species without hybrid origin.