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Invasive

Plant Database
Stem with ball cluster of unopened flowers
Biddy-Biddy
Acaena novae-zelandiae
Light green cluster of winged seeds (samaras) of Norway Maple
Norway Maple
Acer platanoides
White flowers with pinkish spots growing in a terminal cluster.
Horse Chestnut
Aesculus hippocastanum
a cluster of reddish brown samaras.
Tree of Heaven
Ailanthus altissima
Garlic Mustard Alliaria petiolata Small plant with green heart shaped leaves
Garlic Mustard
Alliaria petiolata
Tall spire of smaller purple flowers with yellow and white stamen
Indigo Bush
Amorpha fruticosa
close up leaf edges
False Brome
Brachypodium sylvaticum
Cluster of small white and pink flowers
Flowering Rush
Butomus umbellatus
Italian Thistle Carduus pycnocephalus Stalk with long spiky leaves and green spiky unopened flower pod
Italian Thistle
Carduus pycnocephalus
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