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Non-native Plant
Leymus arenarius
Non-native Plant
Leucojum aestivum
Non-native Plant
Iris pseudacorus
Non-native Plant
Inula britannica
Non-native Plant
Imperata cylindrica
Non-native Plant
Imperata brasiliensis
Non-native Plant
Impatiens balfourii
Non-native Plant
Hydrilla verticillata
Non-native Plant
Hyptis mutabilis
Non-native Plant
Hydrocharis morsusranae
Non-native Plant
Holcus lanatus
Non-native Plant
Hieracium aurantiacum
Non-native Plant
Hesperis matronalis
Non-native Plant
Heracleum mantegazzianum
Non-native Plant
Hemerocallis fulva
Non-native Plant
Glyceria maxima
