Botanical prospecting for uranium
Botanical prospecting for uranium is a method of finding uranium deposits either by observation of plant life growing on the surface, or by geochemical analysis of plant material in a process known as geobotanical prospecting. The history of uranium prospecting, especially in the Colorado Plateau of North America, has seen several methods of identifying likely ore body locations.
Source: Wikipedia — Botanical prospecting for uranium (CC BY-SA 4.0)