Assertion: alder's leaf | /r/HasProperty | the latex of aloe vera
Facets:
Source sentences:
text: The dried, aged bark of R. purshiana has been used continually for many years by both Pacific northwest native peoples and immigrant Euro-Americans as a laxative natural medicine, as one of several anthraquinone-containing herbal medicines including the leaf and fruits of senna, the latex of Aloe vera, and the root of the rhubarb plant.