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CCDB → Angiosperms → Polemoniaceae → Collomia
| Taxon name | Status | Median (n) |
| Collomia biflora (Ruiz & Pav.) Brand | Accepted | 16 |
| Collomia diversifolia Greene | Accepted | 8 |
| Collomia grandiflora Douglas ex Lindl. | Accepted | 8 |
| Collomia heterophylla Hook. | Accepted | 8 |
| Collomia linearis Nutt. | Accepted | 8 |
| Collomia mazama Coville | Accepted | 8 |
| Collomia tinctoria Kellogg | Accepted | 8 |
| Collomia coccinea Lehm. ex Lindl. | Synonym of Collomia biflora (Ruiz & Pav.) Brand | 16 |
| Collomia debilis var. camporum Payson | Synonym of Collomia debilis (S. Watson) Greene | 8 |
| Collomia debilis var. debilis | Synonym of Collomia debilis (S. Watson) Greene | 8 |
| Collomia debilis var. ipomoea Payson | Synonym of Collomia debilis (S. Watson) Greene | 8 |