Nelsonianthus is a genus of flowering plants belonging to the family Asteraceae.

[1] It is native to southern Mexico and Guatemala.

[1] The genus name of Nelsonianthus is in honour of Edward William Nelson (1855–1934), an American naturalist and ethnologist.

[2] It was first described and published in Phytologia Vol.27 on page 54 in 1973.

[1] According to Kew:[1]