Henrickson (I.M.Johnst.) 1985 - Henrickson J, Flyr LD (1985) SYSTEMATICS OF LEUCOPHYLLUM AND EREMOGETON (SCROPHULARIACEAE). Sida, Contributions To Botany 11(2): 107-172. Retrieved from http://www.jstor.org/stable/23909310
There is no corrections for Leucophyllum laevigatum var. griseum yet.