Decalobanthus
{{Short description|Genus of flowering plants}}
{{Automatic taxobox
| image = Merremia peltata flowers and fruits 1.jpg
| image_caption = Decalobanthus peltatus in Sulawesi, Indonesia
| taxon = Decalobanthus
| authority = Ooststr.
}}
Decalobanthus is a genus of flowering plants in the family Convolvulaceae.{{cite web |title=Decalobanthus Ooststr. {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:11845-1 |website=Plants of the World Online |access-date=4 November 2024}} Its native range is Tanzania, the Western Indian Ocean, tropical and subtropical Asia to the Pacific.
{{As of|2024|November}}, Plants of the World Online accepted these species:
- Decalobanthus bimbim {{small|(Gagnep.) A.R.Simões & Staples}}
- Decalobanthus boisianus {{small|(Gagnep.) A.R.Simões & Staples}}
- Decalobanthus borneensis {{small|(Merr.) A.R.Simões & Staples}}
- Decalobanthus bracteatus {{small|(P.S.Bacon) A.R.Simões & Staples}}
- Decalobanthus calyculatus {{small|(Ooststr.) A.R.Simões & Chatrou}}
- Decalobanthus clemensianus {{small|(Ooststr.) A.R.Simões & Chatrou}}
- Decalobanthus crassinervius {{small|(Ooststr.) A.R.Simões & Chatrou}}
- Decalobanthus discoidespermus {{small|(Donn.Sm.) Staples}}
- Decalobanthus distillatorius {{small|(Blanco) Staples}}
- Decalobanthus eberhardtii {{small|(Gagnep.) A.R.Simões & Staples}}
- Decalobanthus elmeri {{small|(Merr.) A.R.Simões & Staples}}
- Decalobanthus korthalsianus {{small|(Ooststr.) A.R.Simões & Staples}}
- Decalobanthus mammosus {{small|(Lour.) A.R.Simões & Staples}}
- Decalobanthus ooststroomii {{small|Staples}}
- Decalobanthus pacificus {{small|(Ooststr.) A.R.Simões & Staples}}
- Decalobanthus peltatus {{small|(L.) A.R.Simões & Staples}}
- Decalobanthus pulcher {{small|(Ooststr.) A.R.Simões & Staples}}
- Decalobanthus sumatranus {{small|Ooststr.}}