Data related to Echinocereus at Wikispecies Media related to Echinocereus at Wikimedia Commons Echinocereus on CactiGuide.com Echinocereus Online (in German)
the genus Echinocereus. Nomenclature synonyms are Echinocereuspectinatus var. rigidissimus (Engelm.) Rümpler (1885), Echinocereusdasyacanthus var. rigidissimus
is located within the genus Echinocereus and is taxonomically closest to E. bonkerae Thornber & Bonker, E. dasyacanthus Engelm., E. fasciculatus (Engelm