Erigeron philadelphicus (Philadelphia fleabane) is a plant in the daisy family, Asteraceae. Also known as skevish, skervish, Philadelphia daisy, frost-root, poor robin's plantain, and in the British Isles just as robin's-plantain.
Erigeron philadelphicus is a herbaceous plant with alternate, simple leaves, on hairy stems. The flowers are pink-rayed, yellow centered, borne in spring. The number of closely packed petals ranges from 50 to 100 per flower. The blooms are less than one inch in diameter. The stem is hairy with rough hairs. The middle to lower leaves are heart shaped, and the plant is about 0.5–2.5 ft (15–76 cm) tall. Its active growth period is from spring to summer (April to July). This plant can be found throughout North America along roadsides, in fields, in thickets, and in open woods.