Genista
French broom
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Genisteae
Genus: Genista
L. (1753)
Species[1]

144; see text

Synonyms[1]
  • Argelasia Fourr. (1868)
  • Asterocytisus Schur ex Fuss (1866)
  • Avornela Raf. (1838)
  • Chamaespartium Adans. (1763)
  • Chamaesparton Fourr. (1868)
  • Corniola Adans. (1763)
  • Cytisanthus O.Lang (1843)
  • Dendrospartum Spach (1845)
  • Drymospartum C.Presl (1845)
  • Enantiosparton K.Koch (1869)
  • Euteline Raf. (1838)
  • Genistella Ortega (1773)
  • Genistoides Moench (1794)
  • Lissera Adans. ex Fourr. (1868)
  • Listera Adans. (1763)
  • Lugaion Raf. (1838)
  • Phyllobotrys Fourr. (1869)
  • Pterospartum (Spach) K.Koch (1853)
  • Saltzwedelia G.Gaertn., B.Mey. & Scherb. (1800)
  • Scorpius Moench (1794), nom. illeg.
  • Syspone Griseb. (1843)
  • Telinaria C.Presl (1845), nom. superfl.
  • Teline Medik. (1787)
  • Voglera G.Gaertn., B.Mey. & Scherb. (1800)

Genista /ɛˈnɪstə/[2] is a genus of flowering plants in the legume family Fabaceae, native to open habitats such as moorland and pasture in Europe and western Asia. They include species commonly called broom, though the term may also refer to other genera, including Cytisus and Chamaecytisus. Brooms in other genera are sometimes considered synonymous with Genista: Echinospartum, Retama, Spartium, Stauracanthus, and Ulex.

Description

They are mainly deciduous shrubs and trees, often with brush-like foliage, often spiny to deter grazing, and masses of small, pea-like yellow blooms which are sometimes fragrant.[3] Many of the species have flowers that open explosively when alighted on by an insect, the style flying through the upper seam of the keel and striking the underside of the insect, followed by a shower of pollen that coats the insect.[4]

The name of the Plantagenet royal line, which reigned in England from 1154 to 1485, is derived from this genus, being a dialectal variation of planta genista.[5]

Several species are widely cultivated for their often sweet-smelling, abundant blooms early in the season, though many are not fully hardy. The cultivar 'Porlock' has received the Royal Horticultural Society's Award of Garden Merit.[6]

Species

144 species are currently accepted.[1] Genista includes the following species:[7][8][9]

Species names with uncertain taxonomic status

The status of the following species is unresolved:[9]

Hybrids

The following hybrids have been described:[9]

References

  1. ^ a b c Genista L. Plants of the World Online. Retrieved 31 August 2023.
  2. ^ Sunset editors (1995). Sunset Western Garden Book, Revised and Updated Version. Little Rock, Arkansas: Leisure Arts. p. 624. ISBN 978-0376038517. ((cite book)): |author= has generic name (help)
  3. ^ Brickell C. (2008). A–Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley in association with the Royal Horticultural Society. p. 1136. ISBN 978-1405332965.
  4. ^ Willis JC (1985). A Dictionary of the Flowering Plants and Ferns (8th ed.). Cambridge, England: Cambridge University Press. p. 1294. ISBN 978-0521313957.
  5. ^ Roupell A. (1849). "Plate IV. Liparia spherica". Specimens of the Flora of South Africa by a Lady. London, England: W. Nicol, Shakespeare Press. p. 17. OCLC 228733208.
  6. ^ "Genista 'Porlock'". RHS. Retrieved 9 July 2020.
  7. ^ "ILDIS LegumeWeb entry for Genista". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 11 April 2014.
  8. ^ USDA; ARS; National Genetic Resources Program. "GRIN species records of Genista". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Archived from the original on 24 September 2015. Retrieved 11 April 2014.
  9. ^ a b c "The Plant List entry for Genista". The Plant List. Royal Botanic Gardens, Kew and the Missouri Botanical Garden. 2013. Retrieved 11 April 2014.
  10. ^ Some sources treat Genista sibirica as a synonym of Genista tinctoria.
  11. ^ Some sources treat Genista spachiana as a synonym of Genista stenopetala.
  12. ^ Some sources treat Genista splendens as a synonym of Teline linifolia.