I determined the plant to be in the Liliaceae family due to the floral parts being in 3's, the inflorescence being solitary, the leaves being parallelly veined, and the showy petals.
Liliaceae -> 1b, 7b, 10a, 11b, 17b, 21b, 22b, 25a -> Calochortus, 14b, 12b, 11b, 10b, 6b, 1b -> C. tolmiei.
Such a treat to have them hanging around the yard!
Group 6: 1b, 5b, 9b, 10b, 12b, 13b, 14b, 15b, 16a, 17b, 19b
Subgroup 6f: 1b, 2b, 6b, 7b, 8b, 9a, 10b, 11b, 12a
Hydrophyllaceae: 1b, 4b, 5a
Hydrophyllum: 1a, 2b, 3b
Iridaceae (stamens 3 and fused to petals, inferior ovary, flowers showy)
1a
Iris
1b 4b 5b 6b 7b 8a
Iris tenax