Internet assignment 1 and 2

Witch Hazel (hamamelis virginiana)

deciduous shrub(rarely tree), native eastern north america, hamamelidaceae family, used stems/bark/leaves, active agent astrugent polyphenolic hamamelitannins

historic use of witch hazel

boiling stems of shrub treat swelling/inflammation/tumours, bark/leaves treat external inflammations

hamamelitannins

astringent polyphenolic, from witch hazel, cytotoxic activity against colon cancer cells

modern uses of witch hazel

skincare, skin irritations, inflammation, tropical ointment treat hemorrhoids

Psyllium (Plantago ovata)

annual herb, native Mediterranean region, source of psyllium, seeds used, laxative

psyllium seeds

dietary fiber, used production mucilage, treat constipation and mild diarrhea, lower blood cholesterol, may lower blood glucose (type 2 diabetes)