sea sargassum alga or brown macroalgae. edible seaweed with leaves and bladders. natural underwater plant. realistic

sargassum seaweed alga macroalgae sea aquatic berrylike bladder botanical botany colored detailed drawing drawn edible food graphic green handdrawn healthy illustration isolated leaf leaves macrocystis marine natural nature ocean organic plant realistic retro sargasum style submarine undersea underwater vector vegetation vintage water white