Hypericum edisonianum
Hypericum edisonianum, known as Arcadian St. John's wort, Edison's St. John's wort, and Edison ascyrum, is a species of flowering plant in the St. John's wort family, Hypericaceae. It is endemic to Florida.
Description
Arcadian St. John's wort is a small, thicket-forming shrub, growing up to tall. The stems are reddish-brown, marked with lines when young and with bark peeling in strips as it ages. The leathery leaves are sessile and elliptic, growing long and across, paler underneath and waxy above. The leaves quickly fall off, leaving behind gland-like auricles. Flowers are produced in a pseudo-dichotomous arrangement. Each yellow flower has 4 sepals: 2 large and 2 small. The flowers each have 4 bright yellow petals and numerous stamens. The capsules have 3-4 lobes.Hypericum edisonianum is distinguished from the similar H. crux-andreae by its smaller, thicker leaves, its pseudo-dichotomous branching, and a pair of gland-like auricles that remain after leaves fall off the stem.