Chara polyacantha
- kingdom: Plantae
- phylum: Charophyta
- class: Charophyceae
- order: Charales
- family: Characeae
- genus: Chara
- species: Chara polyacantha
Langenbogen- Wansleben
Saxony-Anhalt
Germany
Ruidera
Castille-La Mancha
Spain
Oxie
Skåne
Sweden