L., Sp. Pl.: 292. 1753. Type: Crinum americanum L.
Bulbous herbs, perennial. Leaves radical, basal or basally packed forming a distinct aerial stem, ligulate or ensiform, often large. Inflorescences umbellate; spathes large and broad. Flowers pedicellate or sessile. Perianth actinomorphic or slightly zygomorphic, salverform or subsalverform; lobes oblong, lanceolate, or linear, straight or curved upward. Stamens inserted at throat of perianth tube; filament suberect to declinate, filiform; anther versatile, linear. Ovary 3-locular; ovules 2 to many per locule. Style slightly decumbent, slender; stigma capitate, small. Fruit a capsule, subglobose, dehiscing irregularly. Seeds orbicular or angular, large.
About 100 species distributed in tropical and subtropical regions, five indigenous species to Thailand.