English plantain, also known as narrowleaf plantain, is a common herbaceous plant that belongs to the Plantaginaceae family. This plant is native to Europe but can now be found in almost all parts of the world. It has various synonyms such as Ribwort Plantain, Common Plantain, Fleawort, Rat's Tails, and Slan-lus. The name 'Ribwort Plantain' comes from the parallel veins on the leaves resembling ribs. The 'Fleawort' name hints at the herb's traditional use as a flea remedy. 'Rat's Tails' comes from the long cylindrical flowers, whereas the Gaelic name 'Slan-lus' translates to "healing herb." Whatever the name, English plantain is a fascinating medicinal plant with numerous health benefits.