Valmiki Ramayana Kishkindha Kanda Sarga 48 Shloka 8

यत्र where, वृक्षाः trees, वन्ध्यफलाः without fruits, विपुष्पाः without flowers, पर्णवर्जिताः without leaves, यत्र where, सरितः rivers, निस्तोयाः without water, यत्र there, मूलम् root, सुदुर्लभम् very difficult to get.

As they marched forward, they entered a location where there were trees devoid of leaves, flowers and fruits and rivers without water and a place where it was difficult to get roots (for food).