Helminthotheca (commonly called ox-tongue) is a genus in the Cichorieae tribe of the sunflower family. Helminthotheca is closely related to the genus Picris, both within the Hypochaeridinae subtribe.Species Helminthotheca aculeata - Italy, Algeria, Tunisia Helminthotheca balansae - Algeria, Morocco Helminthotheca comosa - Algeria, Morocco, Spain, Portugal, Gibraltar Helminthotheca echioides (syn.