Lilaeopsis schaffneriana
Lilaeopsis schaffneriana is a rare species of flowering plant in the family Apiaceae known by the common names Schaffner's grasswort and cienega false rush.
- Lilaeopsis schaffneriana subsp. schaffneriana is found in Dominican Republic, Ecuador, and Mexico.
- Lilaeopsis schaffneriana subsp. recurva, is a federally listed endangered species of the United States. It is limited to desert wetlands, including a rare type of desert marsh habitat called a cienega. There are 8 populations in Arizona and four more south of the border in Mexico.