Onopordum acanthium

Family Asteraceae

Species Profile

Species classification Invasive [WoNS shortlist (pre-2012); NSW's Noxious Weeds]
Common namesHeraldic Thistle, Onopordum Thistle, Scotch Cotton Thistle, Scotch Thistle, Woolly Thistle
SynonymsInformation unavailable
LongevityAnnual, Biennial
Growth formHerb
Seed dispersal morphologyWing/Achene/Pappus
Maximum height (m)2
Capable of vegetative reproductionYes
Native rangeAsia, Europe
Exotic range (Australia)ACT, NSW, SA, TAS, VIC, Lord Howe Island
Exotic range (other)North America
Habitat types (exotic)Agricultural land, Pastures
Soil type (exotic)Fertile, Gravel/stony, Well drained
Decade of introduction1840

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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