Mexico, Central America
Hybrid origin, North America, Europe, Africa, Asia
A. houstonianum f. isochroum, A. houstonianum f. luteum, A. houstonianum var. muticescens
White lily, orange lily, Lily of the valley
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24
21,22