What is a plant of the genus Lithospermum (L. arvense), anciently used, because of its stony pericarp, in the cure of gravel. The German gromwell is the Stellera. [Written also gromill.] called?

gromwell — A plant of the genus Lithospermum (L. arvense), anciently used, because of its stony pericarp, in the cure of gravel. The German gromwell is the Stellera. [Written also gromill.]. (Webster's 1913.)

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