There are at least 16 members of the spurge genus (Euphorbia) 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.
Euphorbia agraria, urban spurge Euphorbia brachycera, horned spurge Euphorbia cyparissias, cypress spurge Euphorbia esula, leafy spurge Euphorbia geyeri, Geyer's spurge Euphorbia glyptosperma, corrugate-seed broomspurge Euphorbia helioscopia, summer spurge Euphorbia hexagona, six-angle spurge Euphorbia marginata, snow-on-the-mountain Euphorbia missurica, prairie broomspurge Euphorbia oblongata, eggleaf spurge Euphorbia peplus, petty spurge Euphorbia serpens, matted broomspurge Euphorbia serpyllifolia, thyme-leaf broomspurge Euphorbia spathulata, reticulate-seeded spurge Euphorbia supina, spotted spurge
Further reading
See also List of dicotyledons of Montana
Notes