Hypericum aegypticum is a species of flowering plant of the St. John's wort family (Hypericaceae) which is native to the Eastern Mediterranean. It was described by Carl Linnaeus in the second volume of his Species Plantarum in 1753, who named it after Egypt despite it not being distributed there. The plant is commonly known as shrubby St. John's wort or Egyptian St. John's wort in English. Like other members of section Adenotrias, it is found among limestone rocks in coastal areas. While it has been evaluated as threatened on the island of Malta, the species has no legal protections.
Hypericum collinum is a flowering plant in the family Hypericaceae which is found in Mexico.
Hypericum bupleuroides is a species of perennial flowering plant in the St John's wort family, Hypericaceae. It grows 45–80 centimeters tall, and notably has perfoliate leaves that are fused at the stem. It has pyramid-shaped flower clusters of 1 to 25 flowers with yellow petals in a star-shaped arrangement. The species is found along the Black Sea coast near the Turkish–Georgian border. Hypericum bupleuroides has a small distribution and specific habitat requirements that make it vulnerable to environmental pressures.
Androsaemum, commonly called tutsan, is a section of flowering plants in the family Hypericaceae. It is made up of Hypericum androsaemum, H. foliosum, H. grandifolium, and H. hircinum, as well as the hybrid H. × inodorum. When it was first described, it was considered its own independent genus, but was later placed under Hypericum and demoted to a section. It is also the namesake of an "Androsaemum-group" of related taxa that includes several other sections of Old World species. The Latin name Androsaemum comes from a Greek work to describe plants with red sap, and literally means "blood-man".
Hypericum sect. Adenosepalum is one of 36 sections in the genus Hypericum. Its type species is Hypericum montanum.
Hypericum sechmenii, or Seçmen's St John's wort, is a rare species of flowering plant of the St John's wort family (Hypericaceae) that is found in the Eskişehir Province of central Turkey. It was first described in 2009 by Turkish botanists Atila Ocak and Onur Koyuncu, who named the species in honor of Özcan Seçmen, a fellow botanist. They assigned the species to the genus Hypericum, and Norman Robson later placed H. sechmenii into the section Adenosepalum.
Hypericum formosissimum is a species of flowering plant in the family Hypericaceae, section Adenosepalum, in the Hypericum huber-morathii group.
Hypericum russeggeri is a species of flowering plant in the St John's wort family Hypericaceae. The plant is a small shrub with many branches that spread across the ground, and it has many small flowers with pale yellow petals. It is found only among calcareous rocks along the coast and in the foothills of the Nur Mountains of eastern Turkey and northern Syria. While H. russeggeri has an array of phytochemicals present in its flowering structures and leaves, these are found in lower concentrations than other species of Hypericum. The species was first described in 1842 as Triadenia russeggeri, and it has been placed into various defunct genera including Elodea and Adenotrias. It is now known as Hypericum russeggeri and is one of three species in Hypericum section Adenotrias with H. aegypticum and H. aciferum.
Hypericum heterophyllum is a flowering plant in the Hypericaceae family and is the only species in Hypericum sect. Heterophylla.
Hypericum minutum is a species of flowering plant in the St John's wort family Hypericaceae. It is a small perennial herb that grows in tufts. It has slender and brittle stems, flowers in clusters of one to three, yellow petals with black and amber glands, few stamens, and a seed capsule with narrow grooves. H. minutum is closely related to H. huber-morathii and H. sechmenii and resembles a smaller form of the latter plant. The plant is endemic to Turkey, and is found among limestone rocks in a limited region of southwestern Anatolia. Originally excluded from a comprehensive monograph of Hypericum, the species' placement within the genus is unclear. It has been placed in both section Adenosepalum and section Origanifolium.
Hypericum collenetteae is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in Saudi Arabia.
Hypericum coadunatum is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in the Canary Islands.
Hypericum psilophytum is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in Morocco and Algeria.
Hypericum scruglii is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in Sardinia.
Hypericum somaliense is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in Somalia.
Hypericum tomentosum is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in the western Mediterranean.
Hypericum decaisneanum is a species of flowering plant of the St. John's wort family (Hypericaceae) that is found in the Libya.
Hypericum elodeoides, commonly called the Himalayan St. John's Wort, is a species of flowering plant of the St. John's wort family (Hypericaceae).
Hypericum iwate-littorale is a species of flowering plant in the family Hypericaceae. It is found in temperate coastal regions of the Iwate Prefecture in Honshu, Japan. The conservation status of H. iwate-littorale is unknown, as it is considered data deficient by the Global Red List of Japanese Threatened Plants.
