Legend
Sect. ''Adenosepalum''
'' Adenosepalum'' Spach is divided into four subsections: ''Adenosepalum'', ''Aethiopica'', ''Caprifolia'', and the Huber-Morathii Group. These subsections contain eight, seven, eleven, and five species, respectively, giving the section ''Adenosepalum'' a total of thirty-one species. In addition, ''Adenosepalum'' contains two Nothospecies: ''H.'' × ''joerstadii'' and ''H. pubescens'' × ''tomentosum''. ''H. annulatum'' has three distinct subspecies. ''Adenosepalum'' is made up of primarily perennial herbs, and also includes shrubs and shrublets. Its species grow to be approximately 2.5 meters tall, and are generally deciduous. Species in ''Adenosepalum'' are glabrous or have simple hairs, and almost always have dark black glands on their leaves, sepals, and rarely on their petals and stems. Their leaves are placed opposite and have no ventral glands. Their flowers are stellate or homostylous. They have 5 sepals, 5 stamen fascicles, and 5 petals.Sect. ''Adenotrias''
'' Adenotrias'' (Jaub. & Spach) R. Keller contains three species: ''H. aciferum'', ''H. aegypticum'', and ''H. russeggeri''. Its type species is ''H. russeggeri''. It is not divided into any subsections. ''H. aegypticum'' has three subspecies: ''H. aegypticum aegypticum'' L., ''H. aegypticum maroccanum'' (Pau) N.Robson, and ''H. aegypticum webbii'' (Spach) N.Robson. ''Adenotrias'' contains shrubs and shrublets. Its species can grow to be up to 2 meters tall. Its species are glabrous, but have no dark glands. Their leaves are lined and glandular, and are cortex green. Their flowers are almost tubular, and are heterostylous. They have 5 sepals, 5 petals, and 3 stamen fascicles.Sect. ''Androsaemum''
'' Androsaemum'' (Duhamel) Godron contains four species: ''H. androsaemum'', ''H. foliosum'', ''H. grandifolium'', and ''H. hircinum''. In addition, ''Androsaemum'' contains one Nothospecies: ''H.'' × ''inodorum.'' It is not divided into subsections. Its type species is ''H. androsaemum''. One of its species, ''H. grandifolium'', has five different subspecies. The section's species are often collectively referred to as Tutsan. ''Androsaemum'' contains shrubs that grow to be from 0.3–2 meters tall. Its species are deciduous and glabrous, but have no dark glands. Their leaves are opposite, decussate, free, and are a pale color. Every species has 20 flowers, branching out from 2 separate nodes, which are homostylous. They have 5 sepals, 5 petals, and 5 stamen fascicles.Sect. ''Arthrophyllum''
''Sect. ''Ascyreia''
''Ascyreia'' Choisy contains exactly 50 species and also includes four nothospecies. The section is one of the largest in the genus that is not divided into any subsections. Its type species is ''H. calycinum''. The section is synonymous with ''Norysca'' Spach.. ''Ascyreia'' is made up of mostly shrubs or shrublets, but also contains a few trees. Its species generally grow to be from 4–5 meters tall. Some of the species are evergreen, but most are deciduous. They are glabrous, and lack dark glands. Their leaves are opposite, decussate, and free. The section's species have anywhere from 1-25 flowers, which are stellate and homostylous. They have five sepals, which are free. They also have five petals and five stamen fascicles, which each have 20-100 stamens. Their seeds are cylindric or ellipsoid, and some are laterally winged.Sect. ''Brathys''
''Brathys'' (Mutis ''ex'' L.f.) Choisy is the largest section in ''Hypericum''. It is divided into four subsections: ''Brathys'', ''Phellotes'', ''Spachium'', and ''Styphelioides''. ''Brathys'' contains 38 species and the type species, ''H. juniperinum''. ''Phellotes'' contains 32 species, ''Spachium'' contains 14 species, and ''Styphelioides'' contains just 2 species. In total, the section contains 86 species. ''Brathys'' contains a wide variety of plants, including small trees, shrubs, shrublets, and herbs. The largest species in the section grow to be 6 meters tall, and are evergreen. Its species are glabrous—though a few have simple hairs—and lack any dark glands. Their stems are either 4 or 6-lined, and are compressed when the plant is young, but later become terete. Their leaves are placed opposite, are decussate and sessile, and have dense marginal glands. All the species have either one flower on the uppermost node of the plant or 2-15 flowers branching from the uppermost node and from lower secondary nodes. The flowers are stellate or sometimes obconic, and are homostylous. The species have 5 petals which are persistent. They have 5 stamen fascicles which contain anywhere from 1-50 stamens each, formed in a tight ring, to give the plants a total of anywhere from 5-250 stamens. The plants have 5 ovaries, 5 sepals, and 3-5 styles.Sect. ''Bupleuroides''
''Bupleuroides'' Stef. contains one species, ''H. bupleuroides'', which shares the name of the section. ''H. bupleuroides'' is a perennial herb that grows to be approximately 75 centimeters tall. The species' stems sprout from branching rhizomes, and are glabrous and lack dark glands. The leaves are placed opposite and are terete and are perfoliate. It has anywhere from 4-25 flowers that branch from 1-5 nodes and are stellate and homostylous and have 5 petals. There are either 3 or 4 stamen fascicles with 20-25 stamens each. The species has 5 sepals, 3 ovaries, and 3 styles.Sect. ''Campylopus''
''Campylopus'' Boiss. contains one species, ''H. cerastioides,'' which is also frequently called ''H. campylopus''. This species is widely cultivated for its vibrant flowers. The section is most closely related to ''Olympia'' and ''Oligostema'' which are its sister taxa. ''Hypericum cerastioides'' is a perennial herb that grows to be 6-25 centimeters tall, and normally grows upright but sometimes grows prostrate along the ground. It can have a few or numerous stems from plant to plant, and is normally unbranched or branched only below the inflorescence. The stems are white and pubescent with 5-35 millimeter long internodes that can be either shorter or longer than the leaves. It is 1-5 flowered with flowers 2-5 centimeters in diameter. The petals are golden yellow without a tint of red and number 2 times the number of sepals in the inflorescence, and there are 60-100 stamens.Sect. ''Camplyosporus''
''Campylosporus'' (Spach) R. Keller contains ten species from Africa and the Middle East. Its type species is ''H. lanceolatum''. The section contains primarily shrubs and trees that can be spreading or grow up to twelve meters tall. They are all evergreen and may or may not have dark glands along the branches. Most species have bark which is fissured and scaly. The species have many flowers which are homostylous. They have five sepals, five petals, and five stamen fascicles which each have 20-45 stamens.Sect. ''Concinna''
''Concinna'' N.Robson contains one species, ''H. concinnum'', which is commonly known as Goldwire. ''H. concinnum'' is a perennial herb or infrequently a subshrub that grows up to 45 centimeters tall. Its stems are erect or ascend from taproots and have dark glands, and change from 4-lined to 2-lined as the species grows. The leaves are placed opposite, and are decussate and free, with closed lamina. The species is 17-flowered and the flowers are stellate and homostylous, with five petals each. The species has five stamen fascicles and a total of 40-100 stamens.Sect. ''Coridium''
''Coridium'' Spach contains six species from with distributions across Europe. Its type species is ''H. coris''. The species in the section are low dwarf shrubs or perennial herbs that grow up to 60 centimeters tall. The leaves are glabrous or paperlike, with stems that branch from the taproot and that have dark red and black glands. The leaves are three or four-whorled and have one vein. The species have one to many flowers that come from one to six nodes and are stellate and homostylous. They have five sepals, five petals, and three stamen fascicles with a total of 25-60 stamens.Sect. ''Crossophyllum''
''Crossophyllum'' Spach contains 4 species of perennial herbs. Its type species is ''H. orientale''. The other species in the section are ''H. adenotrichum'', ''H. aucheri'', and ''H. thasium''. Species in ''Crossophyllum'' grow to be around 55 centimeters tall. They are glabrous, and their stems are erect from a rooting base. Their flowers also branch from the base and sometimes from intermediate nodes. The species have anywhere from 1 to 50 flowers which are stellate and homostylous. Their stems are narrow and eglandular and have dark black or amber glands on raised lines. The leaves are placed opposite and are free and decussate. The species have 5 sepals, 5 petals, and 3 or 5 stamen fascicles with 10-20 stamens each.Sect. ''Drosocarpium''
''Drosocarpium'' Spach contains small perennial herbs that are found around the Mediterranean. ''H. richeri'' has 3 subspecies. The species in the section grow up to 80 centimeters tall and are glabrous (except ''H. rochelii''). Their leaves are placed opposite and are decussate and free. The species have anywhere between one and seventy flowers branching from one to three nodes which are stellate and homostylous. The species has five petals that are persistent after flowering and erect but not twisting, three or four stamen fascicles with a total of thirty to eighty stamens, and three to four styles.Sect. ''Elodeoida''
''Elodeoida'' N.Robson contains tall species of annual and perennial herbs. Its type species is ''H. elodeoides''. The species in the section grow to be up to one meter tall. Their stems are erect or lie flat, sometimes branch out at the base, and are terete. The leaves have dark glands on them and are placed opposite, are decussate, and grow about a centimeter long. The species can have up to fifty flowers, which are homostylous and stellate. They have five petal that remain after flowering and are erect. There are five stamen fascicles are there are a total of nine to sixty stamens with dark anther glands. The seeds are cylindric.Sect. ''Graveolentia''
''Graveolentia'' N.Robson is a diverse section of nine species whose type species is ''H. graveolens''. ''Graveolentia'' is similar to sect. ''Hypericum'' but differs in having mature stem internodes with different characteristics, as well as sepals with linear laminar glands and amber anther glands. Species in the section have one to seventy flowers regularly, but can have up to 124 in some circumstances, and they grow from one to four different nodes. The species have five sepals that are free and persistent and stand erect when the plants are in fruit. They also have five petals that are erect and not twisting and lack apiculus. There are also five stamen fascicles with a total of sixteen to ninety stamens.Sect. ''Heterophylla''
''Heterophylla'' N.Robson contains a single shrublet, ''H. heterophyllum,'' from which the section derives its name. ''H. heterophyllum'' is aSect. ''Hirtella''
''Sect. ''Humifusoideum''
''Humifusoideum'' R. Keller, also called ''Pulogensia'', contains 6 species. Its type species is ''H. peplidifolium''. ''H. beccarii'' has two subspecies: '' H. beccarii beccarii'' and '' H. beccarii steenisii''. Sect. ''Humifusoideum'' containsSect. ''Hypericum''
''Hypericum'', sometimes referred to as the "type section" of the genus, contains perennial herbs and very few subshrubs. It contains the type species of the genus, ''H. perforatum''. Subsect. ''Erecta'', with twenty-three species, is the far less studied subsection of the section, while the details of subsect. ''Hypericum'' have been much more analyzed. Subsect. ''Hypericum'' has eighteen species total, with ten (including the type species) in ser. ''Hypericum'', and eight in ser. ''Senanensia''. The section contains forty-one species in total. The species in sect. ''Hypericum'' grow to be 1.2 meters tall and can grow either erect or prostrate. They are glabrous some have dark glands while others do not. Their stems are 2-lined or 2-winged when young and either remain so or become terete as the plant ages. The leaves are placed opposite or abnormally whorled, are decussate, and are either sessile or pseudopetiolate, as well as being free and persistent. They are up to 70-flowered from one to four nodes, with some lower subsidiary branches. The flowers are stellate and homostylous. The species have 5 persistent sepals, 3 stamen fascicles, and 20-100 total stamens.Sect. ''Inodora''
''Inodora'' Stef. contains one species, a shrub called ''H. xylosteifolium'' or sometimes ''H. inodorum''. ''H. xylosteifolium'' grows to be approximately 1.5 meters, and is a deciduous plant. It typically has anywhere from 1-7 flowers, which are terminal and sometimes have subsidiary branches. The flowers are 1.5–3 cm in diameter and are stellate and rounded. Its anthers are yellow-orange and its stamen are in fascicles in groups of 10-11.Sect. ''Monanthema''
''Monanthema'' N.Robson contains 7 species native to eastern Asia. One of its species, ''H. monanthemum'', has two subspecies: '' H. monanthemum filicaule and H. monanthemum monanthemum.'' The section contains small perennial herbs that grow up to 40 centimeters tall. Their stems are erect to prostrate, and are creeping and branching at the base of the plant. They are glabrous and have dark glands on their leaves, seals, and petals. The stems are terete when mature and are normally eglandular, but will very rarely have a few reddish glands. The leaves are opposite, decussate, and sessile or pseudopetiolate. The laminar glands are either pale or black, and can be very dense to almost absent, and are relatively small. The species are normally 1-15 flowered, but in rare cases can have up to 50 flowers. They grow from one or two nodes, with lower subsidiary branches, and are stellate and homostylous. They have five sepals, five petals, five stamen fascicles with 10-45 total stamens, and 2-4 ovaries. The seeds are cylindric and not carinate.Sect. ''Myriandra''
''Myriandra'' (Spach) R. Keller contains shrubs, shrublets, and perennial herbs that grow to be up to 4.5 m.Sect. ''Oligostema''
''Oligostema'' (Boiss.) Stef. consists of perennial and annual herbs up to 75 cm tall.Sect. ''Olympia''
''Olympia'' (Spach) Nymam contains four dwarf shrubs. Its type species is ''H. olympicum''.Sect. ''Origanifolia''
''Origanifolia'' Spach contains 13 species of shrub-like perennial herbs. Its type species is ''H. origanifolium''.Sect. ''Psorophytum''
''Psorophytum'' (Spach) Nyman contains a single species, ''H. balearicum''.Sect. ''Roscyna''
'' Roscyna'' (Spach) R. Keller contains 2 species: its type species, ''H. ascyron'', and ''H. przewalskii''. ''Roscyna'' was once considered to be its own individual genus which contained only the two species. ''H. ascyron'' has two subspecies, '' H. ascyron ascyron'' and '' H. ascyron gebleri''.Sect. ''Sampsonia''
'' Sampsonia'' N.Robson contains two species: its type species, ''H. sampsonii'', and ''H. assamicum''.Sect. ''Santomasia''
''Santomasia'' (N.Robson) N.Robson contains a single species, ''H. steyermarkii''.Sect. ''Taeniocarpium''
''Taeniocarpium'' Jaub. & Spach contains small wiry perennial herbs up to 1.1 meters tall.Sect. ''Takasagoya''
''Takasagoya'' (Y.Kimura) N.Robson contains deciduous shrubs and shrublets that grow up to 1.5 m tall.Sect. ''Triadenioides''
'' Triadenioides'' Jaub. & Spach contains 7 species. Its type species is ''H. pallens.'' ''H. haplophylloides'' has two subspecies: '' H. haplophylloides haplophylloides'' and '' H. haplophylloides devollense''. The species of the section are found in the mountain ranges of Turkey and the Levant, and several are confined to the island of Socotra. ''Triadenioides'' contains shrubs and shrublets that grow up to 60 centimeters tall. They grow prostrate to erect and the lower parts of the plant are deciduous. Those confined to Socotra lack dark glands, but the species in the Levant have red to black glands on the flower and sometimes leaves or stems. The leaves are either opposite or 3-whorled and are free and either sessile or petiolate. The species have between one and thirteen flowers that are stellate and have one style. They have 5 petals each which are spreading or erect. They have 3 stamen fascicles with many stamens and have 5 sepals.Sect. ''Trigynobrathys''
''Trigynobrathys'' (Y. Kimura) N.Robson contains shrubs and subshrubs as well as annual and perennial herbs that are very diverse in size and shape.Sect. ''Tripentas''
''Tripentas'' (Casp.) N.Robson contains one long-stemmed perennial herb, ''H. elodes''. ''Tripentas'' is sometimes separated into its own genus under the synonyms ''Elodes'' (Spach) W. Koch, ''Martia'' Sprengel, ''Perforaria'' Choisy, ''Spachelodes'' Y. Kimura, or ''Tripentas'' Casp.Sect. ''Umbraculoides''
''Umbraculoides'' N.Robson contains a single species, ''H. umbraculoides'', for which the section is named. It is closely related to sect. Ascyreia.Sect. ''Webbia''
''Webbia'' (Spach) R. Keller contains a large deciduous shrub that can grow up to 4 meters tall.Extinct
''Hypericum'' fossils have been found from the Late Eocene to the present day, with the most commonly found part of the plant being the seeds due to their hardiness. However, a small number of leaves and even pollen have also been found as fossils. The oldest fossil recovered was a seed belonging to the species ''H. antiquum'' which was found in Northern Asia. This species is considered to be the common ancestor of the familySee also
* List of Hypericum nothospeciesReferences
External links
{{Hypericum species Navbox +List of Hypericum Species Hypericum