Senecio jacobaea

Family Asteraceae

Species Profile

Species classification Invasive [WoNS shortlist (pre-2012); NSW's Noxious Weeds]
Common namesCommon Ragwort, Ragwort, St James Wort, Stinking Willie
SynonymsInformation unavailable
LongevityBiennial, Perennial
Growth formHerb
Seed dispersal morphologyWing/Achene/Pappus, Adhesive (burrs, sticky, awns, hairs etc), Hydrochorous (buoyant seed)
Maximum height (m)1.8
Capable of vegetative reproductionYes
Native rangeAfrica, Asia, Europe
Exotic range (Australia)NSW, SA, TAS, VIC, WA
Exotic range (other)Oceania
Habitat types (exotic)Agricultural land, Coastal vegetation/sand dunes, Disturbed areas (including trails), Forest, Grasslands, Heathlands, Pastures, Riparian systems, Roadsides, Wetlands, Wet sclerophyll forest, Woodlands
Soil type (exotic)Medium infertile / moderate poor
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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