| Cistanthe monandra | Common Pussypaws | Montiaceae | C. monandra (Nutt.) Hershk. | 2 | 0 |
| Claytonia megarhiza | Alpine Spring Beauty | Montiaceae | | 3 | 0 |
| Claytonia parviflora ssp. parviflora | Indian Lettuce | Montiaceae | Claytonia parviflora ssp. parviflora is subspecies of C. parviflora | 4 | 0 |
| Claytonia perfoliata ssp. perfoliata | Miner’s lettuce | Montiaceae | C. perfoliata subsp. parviflora is subspecies of C. perfoliata | 4 | 2 |
| Claytonia rosea | Rosy Springbeauty | Montiaceae | C. lanceolata var. rosea (Rydb.) R.J.Davis | 3 | 0 |
| Claytonia rubra | Redstem Springbeauty | Montiaceae | Homotypic Synonyms: C. perfoliata var. rubra (Howell) Poelln. Limnia rubra (Howell) A.Heller. Montia rubra Howell. | 3 | 0 |
| Claytonia umbellata | Great Basin Spring Beauty | Montiaceae | | 2 | 0 |
| Lewisia brachycalyx | Southwestern bitterroot | Montiaceae | Oreobroma brachycalyx (Engelm. ex A.Gray) Howell | 5 | 2 |
| Lewisia columbiana | Columbian Bitterroot, Columbian lewisia, Wallowa lewisia | Montiaceae | | 2 | 0 |
| Lewisia pygmaea | Dwarf Bitterroot or Pigmy Bitterroot | Montiaceae | Calandrinia grayi Britton. Calandrinia pygmaea (A.Gray) A.Gray. Claytonia grayi F.Muell. Claytonia parva Kuntze. Oreobroma grayi (Britton) Rydb. Oreobroma pygmaeum (A.Gray) Howell. Talinum pygmaeum A.Gray. | 4 | 0 |
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