Helminthotheca (commonly called ox-tongue) is a genus in the tribe Cichorieae of the family Asteraceae. Helminthotheca is closely related to the genus Picris, both within the Hypochaeridinae subtribe.

1. Species

2. Helminthotheca aculeata - Italy, Algeria, Morocco, Tunisia

3. Helminthotheca balansae - Algeria, Morocco

4. Helminthotheca comosa - Algeria, Morocco, southern Spain, Gibraltar

5. Helminthotheca echioides (syn. Picris echioides) - widespread across much of Europe and the Mediterranean from Ireland + Canary Islands to Poland + Iran; naturalized in Australia, North and South America

6. Helminthotheca glomerata - Algeria, Tunisia, Morocco

7. Helminthotheca spinosa - central and southern Portugal, southwestern Spain

References