Hypericum perforatum (St John's Wort)

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St. John's wort (Hypericum perforatum) is regarded as a significant environmental weed in Victoria and as an environmental weed in the ACT, New South Wales, South Australia and Western Australia. It is actively managed by community groups in Victoria, New South Wales and the ACT, and is listed as a priority environmental weed in six Natural Resource Management regions.

Hypericum perforatum is listed in the following regions:

Canberra & Southern Tablelands | Southern Highlands | Albury, Wodonga | South Coast | Hume | Gippsland

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Hypericum perforatum (St John's Wort) at Wonthaggi, VIC - 12 Apr 2022 by Tapirlord

Tapirlord

Hypericum perforatum (St John's Wort) at Wonthaggi, VIC - 12 Apr 2022 by Tapirlord

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Close up of flower showing small black dots

A typical flower cluster

Dense infestation

Species information

Hypericum perforatum Scientific name
St John's Wort Common name
Not Sensitive
Exotic
Major weed or pest
Up to 1671.7m Recorded at altitude
Machine learning
In flower
External link More information

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