Related Clues:
- Gale for the Greens?
- Plant for a lag as primitive as this
- It's got one cell for the water gala
- The growth of the gala
- The sort of gala one might have in 13 across
- Seaweed, e.g
- Mussel morsel
- Aquatic eukaryote
- Unwanted swimming pool bit
- Unwanted aquarium collection
- Sea lettuce, e.g
- Seaweed included in botanical garden
- Seafood's special gastronomic ingredient
- Seaweed plant
- Primitive non-flowering, mainly aquatic, plant