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 (Coahuila, Nuevo León, San Luis Potosí) and the US State of Texas.Biota of North America Program 2014 county distribution mapTurner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272
Chromolaena bigelovii is a shrub up to 150 cm (5 feet) 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.Flora of North America, Bigelow’s false thoroughwort, Chromolaena bigelovii (A. Gray) R. M. King & H. RobinsonGray, Asa. 1859. Report on the United States and Mexican Boundary Botany 2(1): 75 in parallel English and Latin, as Eupatorium bigelovii
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