Bryant, G. 1996: Rare and Unusual Plants for New Zealand Gardens. David Bateman, Auckland.
Hobbs, J.; Hatch, T. 1994: Bulbs for New Zealand Gardens. Godwit Press, Auckland.
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.
Ogle, C.C.; La Cock, G.D. 2019: Additional records and observations of monocotyledons naturalised or casual in Manawatu Ecological Region, New Zealand, 1980–2019. Perspectives in Biosecurity Research Series 4: 6–32.