The Common hawkweed (Hieracium lachenalii) belongs to Asteraceae (the Aster family). It is a perennial herb that is native to most of Europe. It is also naturalized in northwestern and northeastern North America. This herb grows in fields and on roadsides, and it can reach up ot 75 cm in height. The leaves at base of stems are gray-green, broadly elliptical or lance-shaped, strongly toothed, and still present when plants are flowering. The cauline leaves are smaller and lacking a petiole. The pale yellow flowerheads have white hairs around the base, and bloom during all of the summer months. The fruits are dark brown achenes.