Other areas of the ears which can be pierced are the tragus, anti-tragus, conch, rook, snug, daith and helix.
The earliest known descriptions of the foxglove are those given by Leonhard Fuchs and Tragus about the middle of the 16th century, but its virtues were doubtless known to herbalists at a much remoter period.
Weeds are very numerous (about 125); and some, notably the sand-bur (Solanum rostratum) cockle-bur, and tumble-weeds among indigenous, and the Russian thistle (Salsola tragus) and purslane among non-indigenous species, are agricultural pests.