Lagophylla is a small genus of flowering plants in the sunflower family. The genus is native to western North America, especially California. These are annual plants with small yellow flowers which open during the night. The leaves are covered with dense hairs, hence the common name, hareleaf as well as the scientific name Lagophylla (from the Greek lagos (λαγός, "hare") and phyllo (φύλλο, "leaf")).