spongilla icon. linear logo of seaweed. black simple of coral, water plant or wooden driftwood. contour

alga art background black branchy cartoon clipart contour coral design drawing driftwood emblem flat graphic icon illustration isolated label line linear logo natural nature ocean outline pictogram plant porous print ramified ramiform sea seaware seaweed sign simple spongilla spongy spriggy sticker symbol template twiggy vector water white wooden