About Hypericum hypericoides subsp. multicaule (Michx. ex Willd.) N.Robson
Hypericum hypericoides, commonly known as St. Andrew's cross, is a flowering plant species belonging to the St. John's wort family, Hypericaceae. It is native to the Southeastern United States, Mexico, Central America, and the Caribbean. It prefers to grow in dry woodland habitats with acidic soil. It is a small shrub or shrublet that produces yellow flowers with four petals. Mature individuals grow between 3 and 10 decimeters (approximately 1 to 3.3 feet) tall. Its leaves vary in shape between linear, elliptic, and oblanceolate, and reach 8 to 26 millimeters in length. Some classifications recognize two subspecies: Hypericum hypericoides subsp. hypericoides and Hypericum hypericoides subsp. multicaule. Hypericum hypericoides subsp. multicaule (Michx. ex Willd.) N.Robson is most often classified as a separate species called Hypericum stragulum in other taxonomic treatments.