Related Clues:
- Primitive plant
- Simple aquatic organism
- Birdbath organism
- Plant that can grow on trees
- Jarvis of the Denver Broncos
- Fish tank organism
- Tree trunk growth
- Kelp, for one
- It grows on trees
- "... gathers no ___"
- Rootless water life
- Supermodel who gathers no pounds?
- Pool microorganism
- Tiny pond organism
- Bit of aquarium growth