Synonyms: Euploca humilis; Euploca ottonis; Heliotropium fruticosum var. angustilobum; Heliotropium fruticosum var. confertum; Heliotropium fruticosum var. hispidum; Heliotropium fruticosum var. ternatum; Heliotropium fumana; Heliotropium greenmanii; Heliotropium hirtum; Heliotropium hispidum; Heliotropium humile (heterotypic); Heliotropium mexicanum; Heliotropium oaxacanum; Heliotropium ottonianum; Heliotropium ottonii; Heliotropium ottonis; Heliotropium saxatile; Heliotropium ternatum; Heliotropium ternatum var. fumana; Messerschmidia incana; Schleidenia fumana; Tournefortia humilis (homotypic); Tournefortia incana; Tournefortia meyeri; Tournefortia sessilifolia