https://www.minnesotawildflowers.info/flower/rugels-plantain
https://creativecommons.org/licenses/by-nc-nd/3.0/us/
plantago-root-compare-2
Comparison of petioles and roots of native Plantago rugelii
(American, broad-leaved, or blackseed plantain) and
introduced Plantago major (common plantain).
Photo © Peter Dziuk CC BY-NC-ND 3.0 US
