Family: Asteraceae
High Risk Traits:
- Elevation range exceeds 1000 m, demonstrating environmental versatility
- Broad climate suitability
- Naturalized in regions with tropical climates
- Widely naturalized in the Hawaiian Islands and elsewhere
- Weed of lawns, golf courses and waste places
- Agricultural and environmental weed
- Hypochaeris glabra is an invasive weed
- Potentially allelopathic
- Causes stringhalt disease in horses
- Tolerates many soil types
- Reproduces by seeds and vegetatively by offsets from the crown
- Hybridizes with H. glabra
- Possibly self-compatible in certain situations (with low seed set)
- Reaches maturity in <1 year
- Seeds dispersed by wind, as a contaminant, and through external attachment to birds, other animals and possibly equipment
- Prolific seed production
- Able to resprout after fires, but controlled through cultivation
Low Risk Traits:
- Unarmed (no spines, thorns or burrs)
- Palatable to browsing and grazing animals
- Mostly self-incompatible
- Does not form a persistent seed bank
- Certain herbicides provide effective control
- Cultivation provides effective control