charophyte
Concise Oxford English Dictionary © 2008 Oxford University Press:
charophyte /ˈkɑːrə(ʊ)ˌfʌɪt, ˈkarə(ʊ)-, ˈtʃarə(ʊ)-/
▶noun Botany a plant of a division (Charophyta ) that includes the stoneworts.
– origin mod. L. Charophyta, from Chara (genus name) + phuta ‘plants’.
'charophyte' also found in these Oxford entries:

