Family: Oxalidaceae
High Risk Traits:
- Broad climate suitability, and elevation range exceeds 1000 m, demonstrating environmental versatility
- Naturalized outside native range, but not reported in the Hawaiian Islands to date
- A weed of lawns, gardens, greenhouses and crops
- Other Oxalis species are invasive
- Contains oxalate that can be toxic to animals if consumed in large quantities
- Host of crop pests and pathogens
- Shade tolerant
- Tolerates many soil types
- Reproduces by seeds and vegetatively by rhizomes
- Hybridizes with other Oxalis species
- Autogamous and self-compatible
- Reaches maturity rapidly (<1 year)
- Seeds dispersed ballistically, as a contaminant, internally by animals, and likely through external attachment to machines, equipment and animals
- Prolific seed production
- Forms a persistent seed bank
- Tolerates mowing
Low Risk Traits:
- A temperate climate weed; would likely only impact tropical island ecosystems at higher elevations
- Unarmed (no spines, thorns, or burrs)
- Browsed by deer and other animals (palatable despite potential toxicity)
- Herbicides may provide effective control