Crotonopsis elliptica, Croton willdenowii Croton michauxii, commonly known as elliptical rushfoil, and Michaux's croton, is a plant species in the family Euphorbiaceae that is native to the United States.

It is an annual plant.

[1] It is listed as a special concern and believed extirpated in Connecticut.

[2] It is endangered in Indiana and extirpated in Pennsylvania.

This Euphorbiaceae-related article is a stub.