Ambrosia tenuifolia

Family Asteraceae

Species Profile

Species classification Invasive [NSW's Noxious Weeds]
Common namesBurr Ragweed, Lacy Ambrosia, Lacy Ragweed, Narrow-Leaf Ragweed
SynonymsInformation unavailable
Growth formHerb
Seed dispersal morphologyAdhesive (burrs, sticky, awns, hairs etc)
Maximum height (m)0.75
Capable of vegetative reproductionYes
Native rangeSouth America
Exotic range (Australia)NSW, SA, VIC, WA
Exotic range (other)Africa, Asia, Europe, Indian Ocean Islands
Habitat types (exotic)Agricultural land, Coastal vegetation/sand dunes, Disturbed areas (including trails), Pastures, Roadsides, Wastelands
Soil type (exotic)Sandy
Decade of introduction1930

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


There are no images currently available for this species