Marine algae that is referred to as a sea vegetable. It comes in many varieties and is typically salty and rich in flavor.
Seaweeds can be found in salt or brackish waters all over the world.
Seaweed contains vitamin E, vitamin C, and carotene. It is also an important source of iodine.
“The Health Benefits of Seaweed” by Jo Lewin https://www.bbcgoodfood.com/howto/guide/health-benefits-seaweed
New Oxford Book of Food Plants by John Vaughan et al. (2009)