Related Clues:

• Aquatic eukaryote
• Unwanted swimming pool bit
• Growth on rock walls
• It grows on rocks and bare ground
• Matted growth
• A couple of seconds after the doctor finds a growth on the trunk
• Unwanted aquarium collection
• Sea lettuce, e.g
• See 5
• Companion introduced to the right kind of plant
• Moment to ship plant
• Rock climber?
• A model of vegetable growth
• Driver of good-looking model
• Seaweed included in botanical garden