Hypericum perforatum

Family Hypericaceae

Species Profile

Species classification Invasive [WoNS shortlist (pre-2012); NSW's Noxious Weeds]
Common namesCommon St. John's Wort, Goat Weed, Klamath Weed, Perforate St. John's Wort, St. John's Wort
SynonymsInformation unavailable
Growth formHerb
Seed dispersal morphologyAdhesive (burrs, sticky, awns, hairs etc)
Maximum height (m)1.2
Capable of vegetative reproductionYes
Native rangeNorth Africa, Asia, Europe
Exotic range (Australia)ACT, NSW, NT, QLD, SA, VIC, WA
Exotic range (other)North America, Oceania, southern Africa
Habitat types (exotic)Agricultural land, Bushland, Disturbed areas (including trails), Forest, Grasslands, Pastures, Riparian systems, Roadsides, Woodlands
Soil type (exotic)Most soil types
Decade of introduction1850

National Climate Change Impact

Invasive Class 3

The area of suitable habitat and the habitat suitability of observations, for this species, are projected to decrease or remain the same under RCP 8.5 2065 compared to current climate suitability.

Maps of Habitat Suitability & Recorded Occurrences

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Current suitable habitat

2035 suitable habitat
(RCP 8.5)

2065 suitable habitat
(RCP 8.5)

Recorded occurrences

Recorded occurrences


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