Ulva taeniata

directions_boat This is an invasive or introduced species.

This bright green "sea lettuce" is native to the US Pacific coast, but is now commonly found in SA, usually on rocky platforms in moderate to rough conditions. Compared to the better known Ulva lactuca, its thin blades are narrower, around 2-5 cm wide. The blades branch towards the base of the plant and are usually ruffled or twisted.