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Helminthotheca
Helminthotheca echioides
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Cichorioideae
Tribe:	Cichorieae
Subtribe:	Hypochaeridinae
Genus:	Helminthotheca Vaill. ex Zinn
Synonyms
Helminthia Juss. Vigineixia Pomel

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.

Species

• Helminthotheca aculeata - Italy, Algeria, Morocco, Tunisia
• Helminthotheca balansae - Algeria, Morocco
• Helminthotheca comosa - Algeria, Morocco, southern Spain, Gibraltar
• 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
• Helminthotheca glomerata - Algeria, Tunisia, Morocco
• Helminthotheca spinosa - central and southern Portugal, southwestern Spain

References

1. ^ Flann, C (ed) 2009+ Global Compositae Checklist
2. Genus Helminthotheca page in the New York Flora Atlas, 12-20-2012
3. Zinn, Johann Gottfried. 1757. Catalogus Plantarum Horti Gottingensis 430
4. Tropicos, Helminthotheca Zinn
5. Kilian, Gemeinholzer & Lack (2009). Systematics, Evolution, and Biogeography of Compositae. (Funk, Susanna, Stuessy & Beyer, eds.) Ch. 24. Chichorieae, pp. 349-352.
6. Altervista Flora Italiana, genere Helminthotheca includes photos and European distribution maps
7. "Helminthotheca Zinn | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 30 June 2024.
8. "Helminthotheca". worldplants.de. Retrieved 30 June 2024.
9. Interagency Taxonomic Information System (ITIS) report for Helminthotheca echioides (L.) Holub, accessed 12-23-2012

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