RMW3BXP4–Gutweed / sea lettuce / grass kelp (Ulva intestinalis / Enteromorpha intestinalis) green alga washed on rocky beach RMDDX5R1–Bladder wrack and sea lettuce, exposed by the out going tide RFWHXAFM–Green algae (ulva intestinalis) covering boulder RFFF2X67–Leaf of Sea lettuce on white background RFW3GKHC–Stranded green seaweed Sea Lettuce / Ulva lactuca washed ashore on beach and deposited at drift line. Washed up metaphor, stranded concept green algae RM2FA5E04–Sea Lettuce Ulva lactuca RMF5FHXP–Ulva kelp or sea lettuce, Ulva lactuca, Poor Knights Islands Nature Reserve, Bay of Islands, New Zealand RMCRR4KX–Sea Lettuce Ulva lactuca RFH33Y8D–Shore crab, Carcinus maenas, walking on sea lettuce, Ulva lactuca, on saltwater tidal flats at low tide of Waddensea, Netherland RM2DF6AEW–Seaweed in rocky coastline: sea lettuce (Ulva lactuca), Corallina elongata and Rissoella verruculosa. Costa Brava, Girona, Catalonia, Spain. RFJRNHMY–Floating sea lettuce in rippling shallow water of sand flat at low tide on Waddensea, Netherlands RF2B5BDDY–Ulva intestinalis seaweed on rocks on a beach. Also known as gutweed, sea lettuce, or grass kelp. RFMK72F1–Sea lettuce – Lechuga de Mar Edible green algae in the family Ulvacceae. Binomial name: Ulva lactuta.