Strophanthus eminii, Emin's strophanthus, grows as a liana up to 10 metres (33 ft) long or as a shrub or small tree up to 7 metres (23 ft) tall, with a stem diameter up to 6 centimetres (2.4 in). Its fragrant flowers feature a pink with white turning red corolla tube, white turning yellow with red spots and streaks inside. Vernacular names for the plant include "spider tresses" and "poison arrow vine". Habitats are deciduous woodland or rocky bushland, from 600 metres (2,000 ft) to 1,650 metres (5,410 ft) altitude. S. eminii is used in local medicinal treatments for snakebites, skin diseases and wounds and also as an anthelmintic. The plant has been used as arrow poison. S. eminii is native to Democratic Republic of Congo, Tanzania and Zambia.