Species having 'gigantea' as epithet name:
- Aclisia gigantea Syn. for: Pollia secundiflora
- Calotropis gigantea
- Cassia gigantea Syn. for: Senna siamea
- Chamaefistula gigantea Syn. for: Senna siamea
- Chionodoxa gigantea Syn. for: Scilla luciliae
- Colocasia gigantea
- Furcraea gigantea Syn. for: Furcraea foetida
- Leucocasia gigantea Syn. for: Colocasia gigantea
- Solidago gigantea