perennial herb, grasslike, ca. 55 cm tall; leaves basal, linear, venation parallel, to ca. 30 cm long by 7 mm wide; inflorescence of elongate racemes, to ca. 25 cm long; flowers with six equal tepals, yellow, with three green longitudinal stripes along center of the tepals, ca. 10 mm long; stamens six, yellow, ca. 7 mm long; pistil one, yellow, ca. 10 mm long; fruit a flat, oval capsule, ca. 6 mm long by 4 mm wide