Substitutions For Thickening: Per 2 teaspoons arrowroot powder needed substitute:
Some of the arrowroot you purchase may actually be made from tapioca root. You can purchase arrowroot powder in many well-stocked grocery stores or purchase it online at Amazon.com
The true arrowroot plant is the Bermuda Arrowroot and is native to Central America. It is classified as Maranta arundinacea.