Family: Poaceae
High Risk Traits:
- Elevation range exceeds 1000 m, demonstrating environmental versatility
- Thrives in tropical climates
- Naturalized on Kauai, Oahu, Molokai, Lanai, Maui and Hawaii (Hawaiian Islands), and elsewhere
- A pasture and environmental weed
- Other Andropogon species are invasive
- Allelopathic
- Creates a fire hazard
- Tolerates many soil types
- Forms dense stands
- Reproduces by seeds
- Self-compatible
- Reaches maturity in 2-3 years
- Seeds dispersed by wind, water, externally in wool and fur as well as in clothing. May also be spread on mud on machinery
- Able to resprout after fire
Low Risk Traits:
- Unarmed (no spines, thorns, or burrs)
- Palatable to grazing animals at early stages of growth (less palatable when mature)
- Shade-intolerant
- Not reported to spread vegetatively
- Herbicides may provide effective control