Pterostylis × aenigma

Familia: Orchidaceae
Subfamilia: Orchidoideae
Tribus: Cranichideae
Subtribus: Pterostylidinae
Genus: Pterostylis
Nothospecies:

Pterostylis × aenigma D.L.Jones & M.A.Clem., Muelleria 8: 73 (1993)

• Formula hybridae: Pterostylis cucullata R.Br. (1810) × Pterostylis foliata Hook.f. (1853)

• Jones, D.L. & Clements, M.A. 1993. Muelleria 8: 73.
• Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. (eds.) 2003. Genera Orchidacearum Volume 3: Orchidoideae (Part two); page 157 ff., Oxford: Oxford University Press. ISBN 0-19-850711-9
  
• Govaerts, R. et al. 2017. Pterostylis × aenigma in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2017 May 2. Reference page. 
• Emonocot.org 2017. Pterostylis × aenigma in The Orders and Families of Monocotyledons. Published online. Accessed: 2017 May 2.
• Tropicos.org 2017. Pterostylis aenigma. Missouri Botanical Garden. Published online. Accessed: 2 May 2017. Reference page.
• International Plant Names Index. 2017. Pterostylis aenigma. Published online. Accessed: 2 May 2017. Reference page.
• The Plant List 2013. Pterostylis × aenigma in The Plant List Version 1.1. Published online. Accessed: 2017 May 2.

• National recovery plan for the Enigmatic greenhood (Pterostylis aenigma)
• Action statement: Enigmatic greenhood (Pterostylis aenigma)