Related Clues:
- Oddly veined salad plant
- Leaves tip — fiver's inside
- Beet with edible white leaf stalks
- Plant that grows underwater
- Sea weed
- Certain algae
- Cold-water seaweed
- Edible marine plant
- Pacific Ocean growth
- Last piece I have should be bit of salad?
- Close kin to the sugar beet
- Vegetable, cold and tough
- Algae in an undersea 'forest'
- Reportedly blackened vegetable
- Kale alternative