The Texas blueweed (Helianthus ciliaris) belongs to Asteraceae (the Aster family). It is a perennial herb that is native to the south-central and southwestern United States and northern Mexico. This herb grows in grasslands, cultivated fields, dry lakes and roadsides, and a height of 40-70 cm. It spreads with creeping roots, or rhizomes, which can form extensive patches. The leaves are blue-green or gray-green, oblong, and generally opposite. The yellow flower heads bloom from June to October. The outer ray flowers are yellow and less than 12 mm long. The inner disk flowers are reddish to purple brown.