Cat's-ear belongs to a group of mainly yellow-flowered daisies in the Tribe Lactuceae. The plants in this tribe are characterised by having a basal rosette of leaves, milky sap in their stems and their flowerheads consist entirely of ray florets (i.e. no ??eye?? to the daisy). Cat's-ear is very similar to others such as the Hawkbits and Smooth Cat??s-ear. From the former it differs in having branched and scaly stems and from the latter in its hairy leaves. Once referred to as Jack-go-to-bed-at-noon as, like all daises, they close around 4pm and open around 8am. Can be quite pronounced in a meadow situation.