Chromolaena bigelovii
Chromolaena bigelovii called Bigelow's false thoroughwort, or Bigelow's thoroughwort, is a North American species of flowering shrub in the family Asteraceae. It is native to northeastern Mexico and the US State of Texas.
Chromolaena bigelovii is a shrub up to 150 cm tall. Flower heads are produced in groups of 3, but sometimes they grow one at a time. The heads contain blue or white disc florets but no ray florets.