Habranthus howardii

This yellow Habranthus was originally described as Zephyranthes howardii from dried specimens but upon close examination, the flowers revealed at least 3 different filament lengths which is indicative of Habranthus. It is a dry climate species with a large bulb and has many characteristics of the Cooperia group of Zephyranthes such as glaucous foliage, slight fragrance, large bulb buried rather deep below ground, reluctance to offset and blooms that open in the afternoon to evening. Could this be a natural, stable hybrid between the yellow H. concolor and the white Z. drummondii (a.k.a. Cooperia pedunculata)?