17; see text Tristagma is a genus of South American plants in the onion subfamily with the Amaryllis family.

[2] It includes 17 species native to Peru, Argentina, and Chile in South America.

[1] 17 species are accepted.

[1][3] Several names have been coined using the name Tristagma but referring to species now considered better suited other genera including Ipheion, Leucocoryne, and Nothoscordum.

[3][1]