Has both toxic and EGF activity. Its EGF activity consists of rounding cells (morphological change) and inducing tyrosine phosphorylation of the EGFR in A431 cells, but with a lower potency that human EGF. Belongs to the EGF domain peptide family. Opinions are divided on whether Anemonia viridis (Forsskal, 1775) and Anemonia sulcata (Pennant, 1777) are separate species.