Leaves lanceolate, to 1.2 m × 10-15 cm, firm, roughened abaxially by small points, margins white with hard, curved teeth ca. 6 mm. Flowers ca. 4 cm; tepals white, 2.5-2.7 cm; ovary 1.4-1.8 cm. 2n = 60. Flowering mid fall--mid winter. Old homesteads in disturbed areas; 0 m; introduced; Fla.; Mexico; Central America; South America.