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Soursob (Oxalis pes-caprae) (Nox)

Invasive Assessment | Impact Assessment | Potential Distribution | Present Distribution

Scientific name:Oxalis pes-caprae L.

Common Name:

Soursob, Sourgrass


Noxious weed. The Agriculture Victoria website has information about the noxious weed classification of this species.


Subhumid and semi-arid warm-temperate to subtropical regions, principally on heavier, fertile, well-drained soils and preferably in frost-free areas (Parsons and Cuthbertson 1992). It is a weed of gardens, orchards, cereal crops and pastures (Parsons and Cuthbertson 1992). Soursob invades dry coastal vegetation, heathland and heathy woodland, lowland grassland and grassy woodland, dry sclerophyll forest and woodland, riparian vegetation and rock outcrop vegetation (Carr
et al 1992).

Photo: Oxalis
Soursob plant
Photo: Angela Fadersen
Photo: Oxalis Flower
Soursob flower
Photo: Angela Fadersen
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