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CCDB → Angiosperms → Polemoniaceae → Langloisia
| Taxon name | Status | Median (n) |
| Langloisia schottii (Torr.) Greene | Accepted | 7 |
| Langloisia setosissima subsp. punctata (Coville) Timbrook | Accepted | 7 |
| Langloisia setosissima None | Synonym of Langloisia setosissima (Torr. & A. Gray) Greene | 7 |
| Langloisia setosissima subsp. setosissima | Synonym of Langloisia setosissima (Torr. & A. Gray) Greene | 7 |