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Non-native Plant
Ottelia alismoides
Non-native Plant
Osmoxylon mariannense
Non-native Plant
Ornithogalum umbellatum
Non-native Plant
Oryza rufipogon
Non-native Plant
Orobanche ramosa
Non-native Plant
Oryza punctata
Non-native Plant
Orobanche minor
Non-native Plant
Oryza longistaminata
Non-native Plant
Orobanche hederae
Non-native Plant
Orobanche crenata
Non-native Plant
Orobanche cernua
Non-native Plant
Orobanche aegyptiaca
Non-native Plant
Opuntia aurantiaca
Non-native Plant
Onopordum illyricum
Non-native Plant
Onopordum acaulon
Non-native Plant
Oldenlandia lancifolia
