Related Clues:

• 'A rolling stone gathers no . . . .'
• A rolling stone gathers none
• Tree trunk greenery
• Low-growing greenery
• Matted growth
• A couple of seconds after the doctor finds a growth on the trunk
• See 5
• Moment to ship plant
• Rock climber?
• A model of vegetable growth
• Driver of good-looking model
• Plant forming most of my lawn!
• Plant growing on many lawns
• Plant growing in dense mats
• Type of plant growing in damp places