Hypericum edisonianum
From Wikipedia, the free encyclopedia
| Hypericum edisonianum | |
|---|---|
 | |
| Growing on margins of cutthroat seep in a matrix of white sand scrub habitat | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Hypericaceae |
| Genus: | Hypericum |
| Section: | H. sect. Myriandra |
| Subsection: | H. subsect. Ascyrum |
| Species: | H. edisonianum |
| Binomial name | |
| Hypericum edisonianum | |
| Synonyms[3] | |
| |
Hypericum edisonianum, known as Arcadian St. John's wort, Edison's St. John's wort, and Edison ascyrum,[4] is a species of flowering plant in the St. John's wort family, Hypericaceae. It is endemic to Florida.[5]
Arcadian St. John's wort is a small, thicket-forming shrub, growing up to 1.5 meters (4.9 ft) tall.[5][6] 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 15–26 millimeters (5⁄8–1 in) long and 5–11 millimeters (1⁄4–3⁄8 in) 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.[6] 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.[5]