O'Kane & Al-Shehbaz (S.Watson) 2002 - O'kane SL, Al-Shehbaz IA (2002) Paysonia, a New Genus Segregated from Lesquerella (Brassicaceae). Novon 12(3): 379. doi: 10.2307/3393083.
There is no corrections for Paysonia lasiocarpa subsp. heterochroma yet.