Valmiki Ramayana Ayodhya Kanda Sarga 91 Shloka 50
Original Shlokaततस्सरलतालाश्च तिलका नक्तमालकाः। प्रहृष्टास्तत्र सम्पेतुः कुब्जा भूत्वाऽथ वामनाः।।2.91.50।।
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ततः then, सरलतालाश्च pine and palmyra trees, तिलकाः tilaka trees, नक्तमालकाः naktamala (that bear flowers at night), प्रहृष्टाः out of great joy, कुब्जाः hunchbacked, अथ also, वामनाः dwarfs, भूत्वा तत्र सम्पेतुः taking the form moved about there.
Thereafter pine, palmyra, tilaka, and naktamala trees were transformed into hunchbacks and dwarfs and moved about in great delight.