Scrophulariaceae Juss.
Eremophila youngii subsp. "subspecies longicalyx" , [n/a], phrase name
Barlow, B.A. (1971), Cytogeography of the genus Eremophila. Australian Journal of Botany 19(3): 296 [primary reference]
Chinnock, R.J. (2007), Eremophila and allied genera: 451 [misapplied]
misapplied to: Eremophila youngii F.Muell. subsp. youngii legitimate by Barlow, B.A. (1971), Cytogeography of the genus Eremophila. Australian Journal of Botany 19(3): 296