The term 'forest-floor plant' refers to a type of plant that grows on the floor of a forest. One example of this type of plant is MOSS, which is a small, soft plant that typically grows in damp and shady areas. MOSS is a four-letter word and is often used as a ground cover in gardens and parks. It is also an important part of many ecosystems, providing food and shelter for animals and helping to retain moisture in the soil.