gromwell
noun
grom·well ˈgräm-ˌwel 
-wəl
: any of a genus (Lithospermum) of plants of the borage family having smooth glossy hard white nutlets
Example Sentences
Recent Examples on the Web Healthy swaths of silvery rabbitbrush, mountain gromwell, penstemons, Rocky Mountain beeplant and Apache plume add color and sink stabilizing roots into the fragile soils. 
Mare Czinar, The Arizona Republic, 21 Aug. 2020
Mare Czinar, The Arizona Republic, 21 Aug. 2020 Word History
Etymology
Middle English gromil, from Anglo-French grumel, gromel
First Known Use
14th century, in the meaning defined above