Related Clues:
- Sample of the natural gases found in seaweed
- Growth on a tree
- -- Hart, American playwright and theatre director (1904-61)
- Eco-graffiti plant
- None of this affects the Rolling Stones
- Sylvan carpet
- Green growth on stones
- Botanical wall art plant
- Growth found on tree trunks and rocks
- Kind of seaweed
- Green shade or something that grows on trees
- Racing driver appears in three seconds
- Plant featured in many a Japanese garden
- It may grow on a rock
- It helps turn a pond green