2011-12-27

Kōwhai raunui




Sophora

Sophora
S. chrysophylla flowers and leaves
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Sophoreae
Genus: Sophora
L.
Type species
Sophora tomentosa
L.
Species

About 60-70 species; see text:

Synonyms

Ammothamnus Bunge
Broussonetia Ortega
Cephalostigmaton (Yakovlev) Yakovlev
Echinosophora Nakai
Edwardsia Salisb.
Goebelia Bunge ex Boiss.
Keyserlingia Bunge ex Boiss.
Vexibia Raf.

Sophora is a genus of about 45 species of small trees and shrubs in the subfamily Faboideae of the pea family, Fabaceae. The species are native to southeast Europe, southern Asia, Australasia, various islands in the Pacific Ocean, western South America, the western United States, the Southern US state of Florida and Puerto Rico. The generic name is derived from sophera, an Arabic name for a pea-flowered tree.

The genus formerly had a broader interpretation including many other species now treated in other genera, notably Styphnolobium (pagoda tree genus), which differs in lacking nitrogen fixing bacteria (rhizobia) on the roots, and Calia (the mescalbeans). Styphnolobium has galactomannans as seed polysaccharide reserve, in contrast Sophora contains arabinogalactans, and Calia amyloid.

The New Zealand Sophora species are known as Kowhai.

The Toromiro (Sophora toromiro) was formerly a common tree in the forests of Easter Island. The tree fell victim to the deforestation that eliminated the island's forests by the 18th century, and later became extinct in the wild. The tree is being reintroduced to the island in a scientific project partly led jointly by the Royal Botanic Gardens, Kew and the Göteborg Botanical Garden, where the only remaining plants of this species with a documented origin were propagated in the 1960s from seeds collected by Thor Heyerdahl.

Mayo or Mayú () is a small tree that inhabits the Chilean Matorral.

Selected species

Formerly placed here

  • (L.) Polhill (as S. heptaphylla L.)
  • (Pall.) Yakovlev (as S. argentea Pall. or S. bifolia Pall.)
  • Baptisia tinctoria (L.) R.Br. (as S. tinctoria L.)
  • (S.Watson) Yakovlev (as S. arizonica S.Watson or S. formosa Kearney & Peebles)
  • Calia secundiflora (Ortega) Yakovlev (as S. secundiflora (Ortega) Lag. ex DC.)
  • Cladrastis kentukea (Dum. Cours.) Rudd (as S. kentukea Dum. Cours.)
  • (Maxim.) Makino (as S. platycarpa Maxim.)
  • (Makino) Makino (as S. shikokiana Makino)
  • (P.J.Bergius) DC. (as S. galioides P.J.Bergius)
  • (Torr. & A.Gray) Walp. (as S. affinis Torr. & A. Gray)
  • (Pall.) Ledeb. (as S. alpina Pall.)

References

  • Heenan P.B, de Lange P.J, Wilton A.D. (2001) "Sophora (Fabaceae) in New Zealand: taxonomy, distribution and biogeography." New Zealand Journal of Botany. 39: 17-53 on line

External links


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