Fittingly, Florida's most common native cactus is an Opuntia called prickly pear (O. humifusa). This spiny, generally sprawling plant, up to 3 feet tall, features flattened stems and branches ...

A tall cactus found only in Florida’s Key Largo is the U.S.’s first species to go extinct from sea-level rise. ... It is eradicating the very species that make up the fabric of our natural world.

The cactus (Pilosocereus millspaughii) was discovered in 1992, and the Florida Keys population has never been huge, around 150 stems. ... The cactus can grow to over 20 feet tall, ...