Hypericum is a genus of flowering plants in the family Hypericaceae. The genus has a nearly worldwide distribution, missing only from tropical lowlands, deserts and polar regions. Many Hypericum species are regarded as invasive species and noxious weeds. All members of the genus may be referred to as St. John's wort, and some are known as goatweed. The white or pink flowered marsh St. John's worts of North American and eastern Asia are now separated into the genus Triadenum.
Hypericum rumeliacum is a species of flowering plant in the family Hypericaceae, native to southeastern Europe.
Hypericum pubescens is a perennial herb in the Hypericaceae family. It is in the section Adenosepalum.
Hypericum cerastioides is a species of perennial flowering plant in the St. John's wort family, Hypericaceae. It is the only species in the section Hypericum sect. Campylopus.
Hypericum lancasteri, known as Lancaster's St. John's wort or as zhan e jin si tao in Chinese, is a species of flowering plant in the St. John's wort family Hypericaceae. The species has been awarded the Royal Horticultural Society's Award of Garden Merit.
Hypericum oblongifolium, known as Pendant St. John's wort, is a species of flowering plant in Hypericumsect. Ascyreia.
Hypericum formosissimum is a species of flowering plant in the family Hypericaceae, section Adenosepalum, in the Hypericum huber-morathii group.
Hypericum przewalskii, commonly called Przewalski's St. John's wort, is a flowering plant in Hypericumsect. Roscyna that is native to China.
Hypericum huber-morathii is a flowering plant in the family Hypericaceae, section Adenosepalum, and the type species of the Hypericum huber-morathii group.
Hypericum rupestre is a species of flowering plant in the genus Hypericum. It is the type species of sect. Arthrophyllum. It was first described by Hippolyte Jaubert and Édouard Spach in 1842 in the journal Ill. Pl. Orient.. The species is found only in a small area in the southern region of Turkey.
Hypericum fissurale, known as cracked St. John's wort, is a flowering plant in the St. Johns's wort family (Hypericaceae) endemic to northeastern Turkey. It is considered critically endangered on the IUCN Red List due to its very limited distribution and declining population. It was first formally named by Jurij Nikolaewitch Woronow in 1912. It is a small perennial herb in the section Hypericum sect. Taeniocarpium, reaching around 22 cm (8.7 in) in height. Like most Hypericum species, it has flowers with five yellow petals and numerous stamens. Hypericum fissurale is closely related to Hypericum armenum.
Hypericum pallens, commonly known as the Pale St. John's wort or Mount Lebanon St. John's wort, is a species of flowering plant in the family Hypericaceae which is found in Turkey, Lebanon, and Syria.
Hypericum ternatum is a species of flowering plant in the family Hypericaceae which is endemic to Turkey.
Hypericum polyphyllum is a species of flowering plant in the family Hypericaceae which is native to Turkey, Lebanon, and Syria.
Hypericum cardiophyllum is a species of flowering plant in the family Hypericaceae which is endemic to Turkey, Lebanon, and Syria.
Hypericum pamphylicum is a species of flowering plant in the family Hypericaceae which is endemic to Turkey.
Hypericum nanum is a species of flowering plant in the family Hypericaceae which is native to Lebanon, Syria, and Israel.
Hypericum pseudohenryi, called the Irish tutsan, is a species of flowering plant in the family Hypericaceae, endemic to China. The species has been awarded the Royal Horticultural Society's Award of Garden Merit. It is invasive in South Africa.
Hypericum minutum is a flowering plant in the genus Hypericum, sect. Adenosepalum.
