This member of the Amaryllidaceae family was described by Pierfelice Ravenna in 1969. It is found on the eastern slopes of the Tungurahua Volcano, Ecuador. It grows in a well drained soil with some water and lots of sun. The bulbs can grow to four centimetres in diameter, the leaves 35 centimetres long. The flowers are pink and green.
The genera name from Greek phaidros; 'bright' and anassa; 'queen'. The specie name is named after Volcán Tungurahua, Ecuador. The leaves by Egon Krogsgaard, Powo.science.kew.org.