''Ryania'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Salicaceae The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae ''sensu stricto'') includes the willows, poplars. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumsc ...

; it was previously listed in the now defunct family

Flacourtiaceae The Flacourtiaceae is a defunct family of flowering plants whose former members have been scattered to various families, mostly to the Achariaceae and Salicaceae. It was so vaguely defined that hardly anything seemed out of place there and it bec ...

. The genus is significant partly because the

alkaloid Alkaloids are a broad class of natural product, naturally occurring organic compounds that contain at least one nitrogen atom. Some synthetic compounds of similar structure may also be termed alkaloids. Alkaloids are produced by a large varie ...

ryanodine was originally extracted from ''

Ryania speciosa ''Ryania speciosa'' is a species of plant family, plant in the family Salicaceae. The species is significant partly because the alkaloid ryanodine was originally extracted from this South American plant. It is used as a piscicide. Variety (bota ...

''. The

Catalogue of Life The Catalogue of Life (CoL) is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxono ...

includes these species: * '' Ryania angustifolia'' * '' Ryania canescens'' * '' Ryania dentata'' * '' Ryania mansoana'' * '' Ryania pyrifera'' * '' Ryania riedeliana'' * '' Ryania sauricida'' * ''

'' * '' Ryania spruceana''

References

External links

* * {{Authority control Salicaceae Salicaceae genera