Family: Plantaginaceae
High Risk Traits:
- Broad distribution, climate tolerance, and elevation range exceeds 1000 m, demonstrating environmental versatility
- Grows in temperate and tropical climates
- Widely naturalized
- Weed of disturbed sites, agriculture and the natural environment
- Other Plantago species are invasive
- Host for recognized pests and pathogens
- Prolific pollen causes hay fever
- Shade-tolerant
- Tolerates many soil types
- Can form dense stands
- Produces seeds which are dispersed by adhering to people, animals and equipment
- Seeds also dispersed by water and internally by birds and other animals
- Able to reach maturity in 1 year
- Can form a persistence seed bank
- Can tolerate browsing and resprouts after fire
Low Risk Traits:
- Unarmed (no spines, thorns or burrs)
- Provides fodder for livestock
- Mostly self-incompatible
- Not able to hybridize with other Plantago species
- Herbicides provide effective control