There are at least 73 members of the Scrophulariales order, Scrophulariales, found in Montana. Some of these species are exotics (not native to Montana) and some species have been designated as Species of Concern.
Bladderwort
Family: Lentibulariaceae
Pinguicula macroceras, California butterwort
Utricularia intermedia, flat-leaved bladderwort
Utricularia macrorhiza, greater bladderwort
Utricularia minor, lesser bladderwort
Bloomrape
Family: Orobanchaceae
Figwort
Family: Scrophulariaceae
Olive
Family: Oleaceae
Fraxinus pennsylvanica, green ash
Further reading
Schiemann, Donald Anthony (2005). Wildflowers of Montana. Missoula, MT: Mountain Press Publishing. ISBN 978-0-87842-504-4.