There are at least 8 members of the Creosote Bush, Maple and Sumac order: Sapindales found in Montana. Some of these species are exotics (not native to Montana).Exotic species have been deliberately or accidentally introduced to areas outside of their native geographic range and are able to reproduce and maintain sustainable populations in these areas. These exotic populations may also be referred to as alien, introduced, invasive, non-native, or non-indigenous.
Creosote bush Family: Zygophyllaceae Tribulus terrestris, puncture-vine Zygophyllum fabago, Syrian bean-caper
Maple Family: Aceraceae Acer glabrum, Rocky Mountain maple Acer negundo, box-elder Acer platanoides, Norway maple
Sumac Family: Anacardiaceae Rhus glabra, smooth sumac Rhus trilobata, skunkbush sumac Toxicodendron rydbergii, western poison-ivy
See also List of dicotyledons of Montana
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Further reading