Helianthocereus crassicaulis Backeb., Kakteenlex.: 185. 1966 Helianthocereus crassicaulis Backeb., Kakteenlex.: 185. 1966is basionym for Lobivia huascha var. crassicaulis (Backeb.) Rausch, Lobivia: 172. 1975Taxon for this nameHelianthocereus crassicaulis Backeb.