Any plant with the botanical identification officinalis was once used by physicians, as tincture, poultice, infusion, etc. This does not mean such plants are safe to ingest. Digitalis officinalis , foxglove, made into a tea is deadly.

The botanical name for pea vetch, which grows along ditches and in fields, is astragalus, and the Greek root word means both ankle and dice. Roll the bones.