Ryania speciosa is a species of plant in the family Salicaceae.The species is significant partly because the ryanoid insecticides are derived from, and have the same mode of action as the alkaloid ryanodine, which was originally extracted from this South American plant, which is also used as a piscicide.
The Catalogue of Life lists these varieties:
R. s. var. chocoensis
R. s. var. mutisii (extinct)
R. s. var. panamensis
R. s. var. stipularis
R. s. var. subuliflora
R. s. var. tomentella
Tape yon sentòm oswa yon maladi epi li sou remèd fèy ki ta ka ede, tape yon zèb ak wè maladi ak sentòm li itilize kont.
* Tout enfòmasyon baze sou rechèch syantifik pibliye