- Drymonia coccinea, Alloplectus circinatus;Besleria coccinea;Alloplectus patrisii;Alloplectus coccineus;Columnea coccinea;Crantzia patrisii
- Onnia circinata, Inonotus circinatus
- Ranunculus longirostris, Fan-leaved Water-crowfoot;Ranunculus circinatus;Ranunculus aquatilis auct, non L;Longbeak buttercup;Longbeak Buttercup;Batrachium circinatum (Sibth) Rchb;Batrachium longirostre (Godr) FW Schultz;Ranunculus amphibius James;Ranunculus circinatus auct non Sibth;Ranunculus subrigidus W Drew;Ranunculus usneoides Greene
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