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Strychnos toxifera - Köhler–s Medizinal-Pflanzen-267.jpg
Strychnos toxifera
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Gentianales
Family: Loganiaceae
Genus: Strychnos

about 190

Strychnos is a genus of flowering plants, belonging to family Loganiaceae (sometimes Strychnaceae). The genus includes about 100 accepted species of trees and lianas, and more than 200 that are as yet unresolved.[1] The genus is widely distributed around the world's tropics. The genus is noted for the presence of poisonous indole alkaloids in the roots, stems and leaves of the plant. Among the alkaloids are strychnine and curare.


The genus has a pantropical distribution.


The genus is divided into 12 sections, though it is conceded that the sections do not reflect evolution of the genus, and all sections except Spinosae are polyphyletic:

  • Strychnos (53 species)
  • Rouhamon (21 species)
  • Breviflorae (32 species)
  • Penicillatae (17 species)
  • Aculeatae (1 species)
  • Spinosae (4 species)
  • Brevitubae (18 species)
  • Lanigerae (32 species
  • Phaeotrichae (1 species)
  • Densiflorae (8 species)
  • Dolichantae (9 species)
  • Schyphostrychnos (1 species)

Selected species

See also

External links