- Dedicated Hypericum website: Hypericum MySpecies (Synonyms, habitat, distribution, child taxa, description)
- Public domain plant photos: National History Museum Data Portal
- Plants of the World Online (Synonyms, Distribution)
- eFloras
- The Plant List (Taxon name information)
- Royal Horticultural Society (Descriptions, distribution, growing conditions)
- GRIN (Uses, distribution, sections)
- Online databse of the Alpine Garden Society
- Tropicos
United States
- Wisonsin: Online Virtual Flora of Wisconsin
Europe
- Flora Europaea
- Euro+Med (Distribution, Common names, Synonyms)
- Conservation Status: EUNIS
China
- Flora of China: 1. HYPERICUM Linnaeus, Sp. Pl. 2: 783. 1753.
Africa
- H. athoum: Ontario Rock Garden
- Hypericum sections Myrianda, Webbia, Arthrophyllum, Triadenoides, Heterophylla, Adenotrias, Humifusoideum, and Adenosepalum: Studies in the genus Hypericum L.
- Hypericum of the south-east United States: Identification, Distribution, and Habitat...
- Chromosome numbers of some Hypericum species: CHROMOSOME NUMBERS IN THE GENUS HYPERICUM
- Phylogenetics of Hypericum: Molecular phylogenetics and morphological evolution of St. John’s wort (Hypericum; Hypericaceae)
- Chemotaxonomy of the genus Hypericum: Taxonomy and Chemotaxonomy of the Genus Hypericum
- Clades of Hypericum and Fossil History: Reconstructing deep-time palaeoclimate legacies in the clusioid Malpighiales unveils their role in the evolution and extinction of the boreotropical flora
- Phytochemicals in leaves: Occurrence and Distribution of Phytochemicals in the Leaves of 17 In vitroCultured Hypericum spp. Adapted to Outdoor Conditions (sections Hypericum, Adenosepalum, Ascyreia, and Psorophytum)
- Effects on Microorganisms: The effects of Hypericum (Hypericaceae) species on microorganisms: a Review (Miscellaneous species)
Triadenum species | |||
|---|---|---|---|
 |  | ||
- Dedicated Hypericum website: Hypericum MySpecies (Synonyms, habitat, distribution, child taxa, description)
- Public domain plant photos: National History Museum Data Portal
- Plants of the World Online (Synonyms, Distribution)
- eFloras
- The Plant List (Taxon name information)
- Royal Horticultural Society (Descriptions, distribution, growing conditions)
- GRIN (Uses, distribution, sections)
- Online databse of the Alpine Garden Society
- Tropicos
United States
- Wisonsin: Online Virtual Flora of Wisconsin
Europe
- Flora Europaea
- Euro+Med (Distribution, Common names, Synonyms)
- Conservation Status: EUNIS
China
- Flora of China: 1. HYPERICUM Linnaeus, Sp. Pl. 2: 783. 1753.
Africa
- H. athoum: Ontario Rock Garden
- Hypericum sections Myrianda, Webbia, Arthrophyllum, Triadenoides, Heterophylla, Adenotrias, Humifusoideum, and Adenosepalum: Studies in the genus Hypericum L.
- Hypericum of the south-east United States: Identification, Distribution, and Habitat...
- Chromosome numbers of some Hypericum species: CHROMOSOME NUMBERS IN THE GENUS HYPERICUM
- Phylogenetics of Hypericum: Molecular phylogenetics and morphological evolution of St. John’s wort (Hypericum; Hypericaceae)
- Chemotaxonomy of the genus Hypericum: Taxonomy and Chemotaxonomy of the Genus Hypericum
- Clades of Hypericum and Fossil History: Reconstructing deep-time palaeoclimate legacies in the clusioid Malpighiales unveils their role in the evolution and extinction of the boreotropical flora
- Phytochemicals in leaves: Occurrence and Distribution of Phytochemicals in the Leaves of 17 In vitroCultured Hypericum spp. Adapted to Outdoor Conditions (sections Hypericum, Adenosepalum, Ascyreia, and Psorophytum)
- Effects on Microorganisms: The effects of Hypericum (Hypericaceae) species on microorganisms: a Review (Miscellaneous species)
Triadenum species | |||
|---|---|---|---|
| | ||