

Summary
Hypericum pseudohenryi, called the Irish tutsan, is a species of flowering plant in the family Hypericaceae, endemic to China. It is an evergreen shrub up to about 0.8 m (2.6 ft) tall with arching stems, growing in a mounded habit. Its cup-shaped yellow flowers, with conspicuous golden stamens, are produced from midsummer to early autumn. The species has been awarded the Royal Horticultural Society's Award of Garden Merit. More on Wikipedia ›
Quoted from Wikipedia, "Hypericum pseudohenryi", CC BY-SA 4.0.
About the genus · Hypericum
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. More on Wikipedia ›
Quoted from Wikipedia, "Hypericum", CC BY-SA 4.0.
Cultivation
Climate across the habitat
Natural habitat
How this section is made
Photographs
Photographs: (c) Tony Rebelo, some rights reserved (CC BY-SA) (2); Pethan, CC BY-SA 3.0, via Wikimedia Commons (2); Averater, CC BY 4.0, via Wikimedia Commons (2).
Related
Other Hypericum 106 in the reference
Hypericum adpressum Creeping St. Johnswort Photo: CC BY, Ryan Sorrells
Hypericum aegypticum Egyptian St John's wort Photo: CC BY, Milan Chytrý
Hypericum aethiopicum African St Johns Wort Photo: CC BY, Dr. Alexey Yakovlev
Hypericum anagalloides Tinker's-penny Photo: CC BY, Alexis Tinker-Tsavalas
Hypericum androsaemum Tutsan Photo: CC BY, Kieran Roy Powell
Hypericum ascyron Great St. John's-wort Photo: CC BY, Oleg Kosterin
Hypericum balearicum Majorca St John's wort Photo: CC BY, Sheelagh Halsey Hypericum beanii St. Johnswort Names & registers
The record
Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →
Where this page came from built 2026-10-22
gbif.species answeredasked 2026-10-22gbif.synonyms answeredasked 2026-10-22gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22wcvp.distribution answeredas of 2026-06-04gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 6 records within 1 km of a botanic garden, herbarium or zoo left out (6 at a botanic garden or arboretum; Wikidata's list)climate nothing to reportasked 2026-10-22only 2 distinct land cells of the climate grid hold an in-range record placed to within 10 km; three are needed for an envelopewikidata answeredasked 2026-10-22wikipedia answeredasked 2026-10-22inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22inat.photos.cultivated not askedgbif.media answeredasked 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rulescommons answeredasked 2026-10-22openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshotEvery source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 20 datasets via GBIF.org; each carries its own licence.


