- Synthyris alpina
- Synthyris borealis
- Synthyris bullii
- Synthyris canbyi
- Synthyris cordata
- Synthyris cymopteroides
- Synthyris dissecta
- Synthyris flavescens
- Synthyris gymnocarpa
- Synthyris hendersoni
| - Synthyris houghtoniana
- Synthyris laciniata
- Synthyris lanuginosa
- Synthyris major
- Synthyris missurica
- Synthyris paysoni
- Synthyris pinnatifida
- Synthyris plantaginea
- Synthyris platycarpa
- Synthyris ranunculina
| - Synthyris refexa
- Synthyris reflexa
- Synthyris reniformis
- Synthyris ritteriana
- Synthyris rotundifolia
- Synthyris rubra
- Synthyris schizantha
- Synthyris stellata
- Synthyris wyomingensis
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