Euthamia occidentalis is a flowering plant, known by the common names western flat topped goldenrod, western goldentop and western goldenrod, in the family Asteraceae.

Euthamia occidentalis is a scrubby perennial plant with many green stems which age into a dull brownish-green, and green small leaves.

It has plentiful yellowish clusters of flowers.

[2] It is a common plant of western North America, from British Columbia and Alberta, the Western United States (from the Pacific as far east as Montana, Nebraska, New Mexico), and Baja California.

[3][4] It is most likely to be found near water, such as wetlands, ditches, and marshes.