|🌵 Author(s)||Lumír Král||🌵 Published in||Ostník 35(346):  (2006)|
Listed as a synonym of or infrageneric taxon in Pachycereus, likely due to a misinterpretation. Idria columnaria (= Fouquieria columnaris, Fouquieriaceae) and Pachycereus pringlei are two conspicuous species that often occur together. The Fouquieriaceae genus Idria Kellogg (Proc. Calif. Acad. Sci. 2: 34. 1863) was presumably named after New Idria, California.