Samphire is a name given to a number of succulent salt-tolerant plants that tend to be associated with water bodies.
- Rock samphire, Crithmum maritimum is a coastal species with white flowers that grows in Ireland, the United Kingdom and the Isle of Man. This is probably the species mentioned by Shakespeare in King Lear.
- Golden samphire, Limbarda crithmoides is a coastal species with yellow flowers that grows across Eurasia.
- Several species in the genus Salicornia, known as "marsh samphire" in Britain.
- Blutaparon vermiculare, Central America, southeastern North America
- Tecticornia, Australia
- Sarcocornia, cosmopolitan.