Valmiki Ramayana Kishkindha Kanda Sarga 30 Shloka 51

नदीनाम् of rivers, कूलानि banks, कुसुमप्रभासैः full of fresh bloomimg flowers, मृदुमारुतेन by the gentle wind, व्याधूयमानैः made to move, धौतामलक्षौमपटप्रकाशैः shining like a clean white silken cloth, नवैः fresh, काशैः kasa reeds, उपशोभितानि shine.

'The river banks shining with fresh white flowers of kasa reeds swayed by the gentle breeze silken look like a lady wrapped in white silk.