Brazos rain-lily

It is a geophytic perennial herb that typically grows between 18 and 35 cm (7.1 and 13.8 in) tall. The leaf blades are dull green, and are up to 5 mm wide. The spathe is 3 to 5.7 cm (1.2 to 2.2 in). The flowers are erect; the salverform perianth is 7.3 to 16 cm (2.9 to 6.3 in) long, and is white, sometimes tinged or veined with pink. The perianth tube is 7 to 13 cm (2.8 to 5.1 in), and is primarily white, sometimes with pale green proximally. The tepals are rarely reflexed. The stamens are fasciculate, and appear equal. The filaments are 0.2 to 0.5 mm, and are subulate. The anthers are 4 to 9 mm. The style is longer than the perianth tube. The stigma is capitate, and is among or very near the anthers. The pedicel is usually absent, but is rarely 0.1 cm.

It is found in the United States (Texas, Oklahoma, Mississippi, Louisiana, Kansas, Arkansas, Alabama, New Mexico), Mexico, and southern Brazil from elevations of 0 to 2400 meters from sea level.