Aspirin was originally obtained from which tree?
Booth willow Willow bark Willow Osiers Willow trees Willow tree Willowiness Salix Willowy WILLOW Sallow Hooker’s willow Willows Willowily
willow willow bark hooker s willow osiers willowily salix booth willow willow tree willows willow trees sallow willowiness willowy
willow
WikipediaEntity
WILLOW