Species within the Costaceae family:
- Amomum arboreum Syn. for: Hellenia speciosa
- Amomum hirsutum Syn. for: Hellenia speciosa
- Banksea speciosa Syn. for: Hellenia speciosa
- Cardamomum arboreum Syn. for: Hellenia speciosa
- Cheilocostus speciosus Syn. for: Hellenia speciosa
- Costus afer
- Costus albus Syn. for: Costus dubius
- Costus anomocalyx Syn. for: Costus afer
- Costus dubius
- Costus edulis Syn. for: Costus dubius
- Costus littoralis Syn. for: Costus afer
- Costus oblitterans Syn. for: Costus afer
- Costus prodigiosus Syn. for: Costus afer
- Costus pterometra Syn. for: Costus afer
- Costus speciosus Syn. for: Hellenia speciosa
- Costus trachyphyllus Syn. for: Costus dubius
- Costus zechii Syn. for: Costus dubius
- Hellenia speciosa
- Zingiber dubium Syn. for: Costus dubius