All Species in Richardia
- Largeflower Mexican Clover (Richardia grandiflora)
- Prairie Mexican Clover (Richardia tricocca)
- Richardia arenicola (Richardia arenicola)
- Richardia boliviensis (Richardia boliviensis)
- Richardia ciliata (Richardia ciliata)
- Richardia coldenioides (Richardia coldenioides)
- Richardia cruciata (Richardia cruciata)
- Richardia gandarae (Richardia gandarae)
- Richardia lomensis (Richardia lomensis)
- Richardia muricata (Richardia muricata)
- Richardia pectidifolia (Richardia pectidifolia)
- Richardia pedicellata (Richardia pedicellata)
- Richardia scabra var. chacoensis (Richardia scabra var. chacoensis)
- Richardia scabra var. scabra (Richardia scabra var. scabra)
- Richardia schumannii (Richardia schumannii)
- Richardia stellaris (Richardia stellaris)
- Richardia tricocca subsp. tetracocca (Richardia tricocca subsp. tetracocca)
- Richardia tricocca subsp. tricocca (Richardia tricocca subsp. tricocca)
- Rough Mexican Clover (Richardia scabra)
- South American Mexican Clover (Richardia humistrata)
- Tropical Mexican Clover (Richardia brasiliensis)