Species having 'simplex' as epithet name:
- Aglaonema simplex
- Aglaonema simplex Syn. for: Aglaonema simplex
- Alyssum simplex
- Caladium simplex Syn. for: Aglaonema simplex
- Clerodendrum chinense var. simplex
- Commelina simplex Syn. for: Murdannia simplex
- Euphorbia simplex Syn. for: Euphorbia segetalis
- Murdannia simplex