Taxonomy
''Hypericum formosissimum'' was first described in Zametki Sist. Geogr. Rast. (Notes on Systematics and Geography of Plants) in 1940 byDescription
''Hypericum formosissimum'' is a perennial herb that grows tall. It is glabrous (lacks hairs) and has numerous stems that are straggling and almost grow along the ground. The stems are slender, terete, brittle, and lack glands. The internodes are long, and most grow longer than the leaves. The leaves are and are petiolate (with stems).They have long lamina which are broadly ovate or almost circular and are a bluish-green color. The leaves have 2 lateral pairs of veins that ascend from the lower portion of the midrib and are difficult to see. The glands on the leaves are pale and dense and the intramarginal glands are black and spaced out. The species is 1-5 flowered from terminal nodes without any flowering branches below. The pedicels that hold the flowers are long. The bracts are small and are black and denticulate. The flowers are wide with rounded buds. The petals are a pale yellow and are 8 by 5 millimeters in size. The stamens number around 18–20, with the longest being around long. The seeds are brown and approximately long with linear-foveolate testa. The species flowers from June–July and fruits from July–August.Distribution and habitat
The species is native to Turkey in central Anatolia as well as the Transcaucasus region, especially in Armenia and Azerbaijan. It is found in fissures of limestone rocks at elevations of above sea level.Ecology
''H. formosissimum'' is an endangered species that occupies an area of less than 500 square kilometers. It was included in the Red Data Book of Armenia as a Rare Species (Category 2).Chemistry
Unlike other species in sect. ''Adenosepalum'', ''H. formosissimum'' does not contain hypericin andReferences
{{Taxonbar, from=Q17565782 formosissimum Flora of Asia Plants described in 1940