|Section:||H. sect. Ascyreia|
Hypericum forrestii is a species of flowering plant in the family Hypericaceae native to China and Myanmar. It is known as Forrest's tutsan and Forrest's St. John's wort. It was named in honour of George Forrest (1873-1932), who discovered it.
It is a semi-evergreen shrub growing to 1.2 m (4 ft) tall by 1.5 m (5 ft) broad. It has oval leaves which turn red in autumn and bowl-shaped yellow flowers with prominent stamens in late summer.
Forrest's St. John's wort is native to Yunnan and Sichuan provinces in China, and northeastern Myanmar. It has been recorded as a garden escape in locations in the British Isles, and as an invasive species. It may be under-recorded due to confusion with other St. John's wort species such as Hypericum 'Hidcote'.
- "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
- RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
- "Hypericum forrestii". Plants for a future. Retrieved 23 June 2013.
- "Hypericum forrestii (Forrest`s Tutsan)". Online Atlas of the British and Irish flora. Biological Records Centre. Retrieved 23 June 2013.
- "Hypericum forrestii". Invasive Species Compendium. CAB International. Retrieved 23 June 2013.
- "RHS Plant Selector - Hypericum forrestii". Retrieved 23 June 2013.
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