Related Clues:

• Jarvis of the Denver Broncos
• Tree trunk growth
• It grows on trees
• "... gathers no ___"
• Symbiotic plant
• Supermodel who gathers no pounds?
• ''... gathers no ___''
• Bryologist’s topic
• Moor growth
• Symbiotic growth
• Fungus
• Velvety forest growth
• Fuzzy green stuff
• Rolling stone's lack?
• Fungus + alga