Ulex

Ulex
Gorse in full flower at Dalgarven Mill in Scotland.
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Tribe:	Genisteae
Genus:	Ulex L.
Species
11–58; see text
Synonyms[1]
Genista-spartium Duhamel (1755)

Ulex (commonly known as gorse, furze, or whin) is a genus of flowering plants in the family Fabaceae. The genus comprises about 20 species of thorny evergreen shrubs in the subfamily Faboideae of the pea family Fabaceae. The species are native to parts of western Europe and northwest Africa, with the majority of species in Iberia.

Gorse is closely related to the brooms, and like them, it has green stems, very small leaves and is adapted to dry growing conditions. However, it differs from the brooms in its extreme thorniness, the shoots being modified into branched thorns 1–4 centimetres (1⁄2–1+1⁄2 inches) long, which almost wholly replace the leaves as the plant's functioning photosynthetic organs. The leaves of young plants are trifoliate, but in mature plants, they are reduced to scales or small spines.^[2] All the species have yellow flowers, generally showy, some with a very long flowering season.