There are currently 16 recognized species in Triteleia. One species, Triteleia ixioides, has five well-defined subspecies. Varieties and subspecies have been proposed within several other Triteleia species, but these are no longer widely accepted. Some common species that are now placed in genus Triteleia were formerly placed in genus Brodiaea, and as a consequence the word "brodiaea" has been incorporated into some of their common names.
at elevations of 1,200–3,500 m (3,900–11,500 ft) in the Sierra Nevada from Mono County southwards; possibly also in the San Gabriel Range of Los Angeles County
at elevations of 100–3,000 m (330–9,840 ft) in southern British Columbia, Washington, Oregon, Idaho, Montana, Wyoming, Utah, extreme northern California; isolated population in southwestern Colorado
common below 1,500 m (4,900 ft) across from much of California; from the Tehachapi Mountains north along the western slopes of the Sierra Nevada and southern Cascade ranges, and in the Coast Ranges north from the Santa Lucia Mountains through the Bay Area to the Klamath Range as far as southwestern Oregon
two populations in the Coast Ranges of California, one around Pinnacles National Park and the other around the Sonoma and Napa valleys, north of San Francisco; possibly a third population in the San Gabriel Range of Los Angeles County
described in April 2014 from two populations in the Piute Mountains of the southern Sierra Nevada in Kern County, California, at elevations of 1,560–1,680 m (5,120–5,510 ft)
Triteleia × versicolor – Pinto triplet lily – a sterile hybrid believed to be T. hyacinthina × T. ixioides, recorded only from the type specimen collected in 1935 at Whaler's Knoll in Point Lobos State Park, Monterey County
A 2002 phylogenetic review of related genera found four clades within Triteleia that were all supported with 100 percent jackknife resampling
values:[5]
Pires, J. Chris; Sytsma, Kenneth J. (August 2002). "A Phylogenetic Evaluation of a Biosystematic Framework: Brodiaea and Related Petaloid Monocots (Themidaceeae)". American Journal of Botany. 89 (8): 1342–1359. doi:10.3732/ajb.89.8.1342. PMID21665737.