Related Clues:
- Underwater forest filler
- Aquatic source of iodine
- Algae from half of lake unexplored up in the middle
- Large leathery brown seaweed
- Algae rich in iodine
- Seaweed source of iodine
- Part of a forest that can grow as fast as two feet a day
- Variety of seaweed
- Dashi flavorer
- Seaweed in a forest
- Stuff in underwater forests
- Growth in a wet forest
- Food for a sea urchin
- Flora under the surface
- Makeup of underwater forests