Invasive & Non-Native Plants in Montana
These non-native plants are among the most commonly recorded spreading in Montana. Many crowd out the plants local wildlife depends on. The good news: there's a native you can plant instead.
Leafy spurge
2,145 sightingsEuphorbia esula · non-native to the U.S.
Plant instead: Horned spurge, Warty spurge, Snow on the mountain (native Euphorbia)
Common mullein
1,175 sightingsVerbascum thapsus · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Yellow salsify
1,154 sightingsTragopogon dubius · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Spotted knapweed
1,116 sightingsCentaurea stoebe · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Canada thistle
866 sightingsCirsium arvense · non-native to the U.S.
Plant instead: Wavyleaf thistle, Meadow thistle, Longstyle thistle (native Cirsium)
Sweetclover
845 sightingsMelilotus officinalis · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Field pennycress
827 sightingsThlaspi arvense · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Gypsyflower
795 sightingsCynoglossum officinale · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Crested wheatgrass
725 sightingsAgropyron cristatum · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Cheatgrass
625 sightingsBromus tectorum · non-native to the U.S.
Plant instead: Smooth brome, California brome, Fringed brome (native Bromus)
Bladder campion
624 sightingsSilene latifolia · non-native to the U.S.
Plant instead: Fire pink, Sticky catchfly, Spalding's silene (native Silene)
Common tansy
600 sightingsTanacetum vulgare · non-native to the U.S.
Plant instead: Lake Huron tansy (native Tanacetum)
Nodding plumeless thistle
595 sightingsCarduus nutans · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Black medick
573 sightingsMedicago lupulina · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.
Oxeye daisy
552 sightingsLeucanthemum vulgare · non-native to the U.S.
Plant instead: a Montana native that fits the same spot.