Asteraceae : Artemisia ludoviciana

Artemisia ludoviciana is an aromatic, rhizomatous perennial herb that grows from 30-100 cm tall, covered in white hairs. The alternate, linear to lanceolate leaves are 3-11 cm long and up to 1.5 cm wide and are also covered in woolly gray or white hairs. The margins of the leaves are entire to irregularly lobed. The inflorescences are terminal narrow panicles of many nodding flower heads. Each small head is about 0.5 cm wide, surrounded by hairy involucral bracts 2.5-4 mm long. The receptacle is naked with numerous small yellow florets, the outer ones pistilate and the central florets are perfect. The fruit is a minute achene. Flowers bloom from July to October in most counties in South Dakota.