Salix n. : A genus of trees or shrubs including the willow, osier, and the like, growing usually in wet grounds.

Salix n. : A tree or shrub of any kind of willow.

Example:
how do i get rid of greenflies on my Salix tree?

Taxonomy
patients, Salix Pharmaceuticals, APRISO, OsmoPrep, placebo, treatment, product, Prescribing Information, MoviPrep, Gastroenterology, XIFAXAN, nausea, sodium phosphate, 18 years, contraindicated, colonoscopy, adults, years of age.

Defination from the web:
Salix is a specialty pharmaceutical company developing, licensing and marketing innovative products to healthcare professionals to prevent or treat digestive disorders