This member of the Rubiaceae family was given this name by Camilla Rose Huxley and Matthew H. P. Jebb in 2019. It is found in the Kebar Valley, Western New Guineas; Indonesia, growing as an epiphyte with lots of water and some sun. The caudex can grow to 30 centimetres in diameter, the entire plant to 100 centimetres in height. The flowers are white. The genera name after Greek hydnon meaning 'tuber' and phyton meaning 'plant', after the swollen branches. The species is named after one of the botanical collectors who found it; Dr Aaron Davis from KEW. Another of Rosemary Wise's great drawings.

