Hypericum cumulicola

Hypericum cumulicola is a rare species of flowering plant in the family Hypericaceae known by the common name highlands scrub hypericum, or highlands scrub St. John's wort. It is endemic to Florida, where it is threatened by habitat loss and degradation. It is a federally listed endangered species of the United States. This is a perennial herb with wiry, sometimes woody, stems growing from a taproot and reaching about 60 centimeters (24 in) in maximum length. The leaves have slightly succulent blades which are linear in shape and measure just a few millimeters long. Flowers occur on the upper branches in a scattered fashion. Each has five yellow petals 3 to 4 millimeters long and many stamens at the center. The flowers open in the morning and are closed by midday. They are visited most often by bees of genus Dialictus. The plant only occurs in Highlands and Polk Counties in Florida. It is one of the many endemics that are native to the Lake Wales Ridge. There are 66 occurrences known, ......read more on Wikipedia.