This member of the Oxalidaceae family was given this name by Reinhard Gustav Paul Knuth in 1919. It is found from southern Mexico through Guatemala to Honduras, growing in a well drained soil with some to lots of water and some sun. The corm can grow to five centimetres in diameter, the entire plant from fifteen to 30 centimetres in height. The flowers are pink.
The genera name means 'sharp, pungent', as to leaf taste. The species name after the British/American naturalist and ethnologist Edward William Nelson,1855–1934. Wild plants by Neptalí Ramírez Marcial, Inaturalist.ca. An exposed plant by Xerantheum, Flickr.com.

