Antirhea

Antirhea is a genus of flowering plants in the family Rubiaceae.^[1]

Antirhea
Antirhea borbonica
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Rubiaceae
Subfamily:	Cinchonoideae
Tribe:	Guettardeae
Genus:	Antirhea Comm. ex A.Juss.
Type species
Antirhea borbonica J.F.Gmel.
Synonyms
Antirhoea DC. Antirrhoea Comm. ex A.Juss. Guettardella Champ. ex Benth.

Species

As of March 2023^[update], Plants of the World Online accepted the following species:^[1]

• Antirhea bifida (Lam.) I.M.Johnst.
• Antirhea bifurcata (Desr.) Benth. & Hook.f.
• Antirhea borbonica J.F.Gmel.
• Antirhea madagascariensis Chaw

Many species are now placed in the genus Stenostomum, including:

• Antirhea aromatica → Stenostomum aromaticum
• Antirhea jamaicensis → Stenostomum jamaicense
• Antirhea portoricensis → Stenostomum portoricense
• Antirhea radiata → Stenostomum radiatum
• Antirhea sintenisii → Stenostomum sintenisii
• Antirhea tomentosa → Stenostomum tomentosum

Distribution

Species of Antirhea are native to Indian Ocean islands off Africa: Madagascar, Mauritius, Réunion, and Rodrigues.^[1]