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 (in the Federal District and the following states: Chihuahua, Coahuila, Durango, Hidalgo, Jalisco, México, Michoacán, Nuevo León, Oaxaca, Puebla, San Luis Potosí, and Tlaxcala). Lilaeopsis schaffneriana subsp. recurva (Huachuca water umbel), is a federally listed endangered species (status G4T2, imperiled) 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....read more on Wikipedia.