Frankenia capitata is a species of flowering plant in the family Frankeniaceae (order Caryophyllales), native to southern Macaronesia. It was first described by the botanists Philip Barker Webb and Sabin Berthelot in 1837 in Histoire Naturelle des Iles Canaries.
Taxonomy and Classification
The species belongs to the genus Frankenia (commonly known as sea heath), which is the sole genus in the family Frankeniaceae. Frankenia comprises approximately 70–80 species of shrubs, subshrubs, and herbaceous plants adapted to saline and dry environments. F. capitata is classified within the order Caryophyllales.
Description
Frankenia capitata is a subshrub. Like other members of the genus, it is salt-tolerant (halophytic) and possesses small, opposite leaves with salt-excreting glands. Its flowers are small and borne in inflorescences, with overlapping petals narrowed at the base.
Distribution and Habitat
The species is native to Macaronesia, specifically the Canary Islands, Madeira, and the Selvagens (Salvage Islands). It grows primarily in subtropical biomes, typically in coastal and saline environments.
Synonyms
- Frankenia laevis var. capitata (Webb & Berthel.) Pit.
- Frankenia laevis var. hebecaulon Lowe
Note on Classification
Some sources, including the Wikipedia article for this species, have listed Frankenia capitata under the family Fabaceae. This appears to be an error; the genus Frankenia is consistently placed within the family Frankeniaceae by authoritative taxonomic sources such as Plants of the World Online (Kew) and the Angiosperm Phylogeny Group (APG IV system).
