There are several words that can be used as synonyms for the phrase "in foliage". These include "lush", "leafy", "foliate", "verdant", and "green". All of these words evoke the idea of abundant plant growth and a thriving ecosystem. They can be used to describe a wide range of natural environments, from dense rainforests to suburban gardens. When used in a descriptive context, words like these can help paint a vivid picture of a specific place or setting. Whether you're writing about a tropical paradise or a verdant meadow, incorporating synonyms for "in foliage" can add depth and nuance to your prose.