Zephyranthes simpsonii, known by a number of common names including redmargin zephyr-lily, Simpson's zephyr-lily and Simpson's rain-lily,[1] is a geophytic perennial herb that grows up to 10 inches tall. It is found from the southeastern United States.
It was first named and described in 1892 by Alvan Wentworth Chapman.[2]
It is a geophytic perennial herb that grows up to 10inches tall. The leaf blades are dull green, and are up to 4 mm wide. The spathe is . The flowers are erect; the funnelform perianth is, and is mostly white proximally, often with pink or purple distally; the perianth tube is, and is green; the tepals slightly diverge, and are rarely reflexed; The stamens diverge, and appear equal; the filaments are filiform, and are ; the anthers are 3 to 8 mm; the style is longer than the perianth tube; the stigma is 3-fid, and is usually among or below the anthers. The pedicel is absent or up to 1.5 cm.
It flowers from February to May.
It is found in the southeastern United States (Florida, Alabama, Georgia, Mississippi, North Carolina, South Carolina).[3]
It grows in peaty-sandy soil, coastal plains and rarely piedmont at elevations of 0 to 100 meters from sea level.[4]