Un guide pratique pour 85 types d'arbres du Nord Etats-Unis et l'Est du Canada.
This app is a handy guide to 85 types of trees of the Northeast USA and Eastern Canada.
There are also sections on poisonous plants, hawks and owls, animal tracks and scat, and Bay of Fundy zeolite minerals.
There is a built-in feature to send home geographically tagged field observations.