Plantago coronopus, a plant with leaves branched somewhat such as the horn of a buck.
The plant Lobelia coronopifolia.
A plant with leaves branched significantly like a buck's horn (Plantago Coronopus); also, Lobelia coronopifolia.
A name fond of a few flowers because of their forked leaves, once the Plantago Coronopus (also known as buck's-horn plantain), the Senebiera Coronopus, together with South African Lobelia coronopifolia.
How would you define buck's-horn?