Leaves of buckhorn plantain, Plantago lanceolata (left), and broadleaf plantain, Plantago major.

Illustration of leaf of buckhorn plantain (left) and broadleaf plantain (right). Buckhorn plantain leaf is narrow, 3 to 12 inches long with parallel veins. The blade merges smoothly into the petiole. Broadleaf plantain leaf is oval, 2 to 7 inches long, with several veins that parallel the leaf margins. The leaf veins meet at the base to form a broad petiole. Credit: Christine Dewees
Credit: Christine Dewees