|Paspalum conjugatum Bergius|
This perennial, stoloniferous grass rapidly invades wet habitats from sea level to 2,000 m. It forms a dense ground cover even on acidic, low-nutrient soils. Neal (1965) noted that "some native forests have become extinct due to this pest." The small seeds are probably distributed by man and animals on clothing and fur. This species is generally susceptible to fire, an unlikely event in the rain forest. No serious effort has been made to evaluate this pest of native ecosystems and ranchlands for biological control.
It is found in wet habitats on all islands.