The first reports of his Eurasian parasite in North America were during 1840-1890 from Ky. (Gm). There are also records from Ca., Tex., N.C. and Va. (Musselman 1985, Musselman & Bolin 2008; PL). It became most problematic on hemp, but also occurs on tobacco and occasionally other plants, especially Brassicaceae and Solanaceae. It has apparently declined in Ky. since the end of the hemp industry, but it survived locally on tobacco grown for seed, e.g., during the 1970s on the farm of J. Van Shipp in WOOD. The distantly related alien, O. minor J.E. Smith, is known from w. Va. and s. W.Va., especially on Trifolium, Nicotiana and Lycopersicon (K, SE, W). Orobanche sensu stricto differs from Phelipanche in its calyx, divided to base into two lobes, these each usually 2-lobed (versus usually with 4 equal lobes about half as long as tube); also its stems are unbramched (versus usually branched unless depauperate).