slender ruddyhood Pterostylis actites (D.L.Jones & C.J.French) D.L.Jones & C.J.French - coastal short-eared snail orchid Pterostylis acuminata R.Br. – sharp greenhood, pointed greenhood Pterostylis × aenigma D.L.Jones & M.A.Clem. – enigmatic greenhood Pterostylis aestiva D.L.Jones – long-tongued summer greenhood Pterostylis agathicola D.L.Jones, Molloy & M.A.Clem. – kauri greenhood (N.Z.) Pterostylis agrestis (D.L.Jones) G.N.Backh. Pterostylis alata (Labill.) Rchb.f. – striped greenhood Pterostylis allantoidea R.S.Rogers – shy greenhood Pterostylis alobula (Hatch) L.B.Moore - winter greenhood (N.Z.) Pterostylis alpina R.S.Rogers – mountain greenhood Pterostylis alveata Garnet – coastal greenhood Pterostylis amabilis (D.L.Jones & L.M.Copel.) D.L.Jones Pterostylis ampliata (D.L.Jones) D.L.Jones – large autumn greenhood Pterostylis anaclasta (D.L.Jones) Janes & Duretto Pterostylis anatona D.L.Jones – Eungella greenhood Pterostylis aneba D.L.Jones Pterostylis angulata (D.L.Jones & C.J.French) D.L.Jones & C.J.French – Helena River snail orchid, limestone snail orchid Pterostylis angusta A.S.George – narrow-hooded shell orchid, narrow shell orchid Pterostylis antennifera (D.L.Jones) D.L.Jones Pterostylis aphylla Lindl. – leafless greenhood Pterostylis aquilonia D.L.Jones & B.Gray – northern cobra greenhood Pterostylis arbuscula (D.L.Jones & C.J.French) D.L.Jones & C.J.French Pterostylis arenicola M.A.Clem. & J.Stewart – sandhill rustyhood Pterostylis areolata Petrie (N.Z.) Pterostylis aspera D.L.Jones & M.A.Clem. – rough shell orchid Pterostylis atrans D.L.Jones – dark-tip greenhood, blunt-tongue greenhood Pterostylis atriola D.L.Jones – Snug greenhood Pterostylis atrosanguinea D.L.Jones & C.J.French Pterostylis auriculata Colenso (N.Z.) Pterostylis australis Hook.f. – southern greenhood (N.Z.) Pterostylis banksii A.Cunn. (N.Z.) Pterostylis baptistii Fitzg. – king greenhood Pterostylis barbata Lindl. – western bearded greenhood, bird orchid Pterostylis barringtonensis (D.L.Jones) G.N.Backh. – Barrington leafy greenhood Pterostylis basaltica D.L.Jones & M.A.Clem. – basalt rustyhood, basalt greenhood Pterostylis bicolor M.A.Clem. & D.L.Jones – black-tip greenhood Pterostylis bicornis D.L.Jones & M.A.Clem. – horned greenhood Pterostylis biseta Blackmore & Clemesha – bristled rustyhood Pterostylis boormanii Rupp – sikh's whiskers, baggy britches, or Boorroans green-hood Pterostylis borealis (D.L.Jones) D.L.Jones Pterostylis bracteatus (D.L.Jones & R.J.Bates) J.M.H.Shaw Pterostylis brevichila D.L.Jones & C.J.French – dwarf shell orchid Pterostylis brevisepala (D.L.Jones & C.J.French) D.L.Jones & C.J.French Pterostylis brinsleyi (D.L.Jones) J.M.H.Shaw Pterostylis brumalis L.B.Moore – kauri greenhood (N.Z.) Pterostylis brunneola D.L.Jones & C.J.French – giant snail orchid Pterostylis bryophila D.L.Jones – Hindmarsh Valley greenhood Pterostylis bureaviana Schltr. (New Caledonia) Pterostylis calceolus M.A.Clem. – Bungonia rustyhood Pterostylis caligna M.T.Mathieson Pterostylis cardiostigma D.Cooper (N.Z.) Pterostylis caulescens L.O.Williams (New Guinea) Pterostylis cernua D.L.Jones, Molloy & M.A.Clem. – Westland greenhood (N.Z.) Pterostylis chaetophora M.A.Clem. & D.L.Jones – Taree rustyhood, tall rusthood or ruddy hood Pterostylis cheraphila D.L.Jones & M.A.Clem. – floodplain rustyhood Pterostylis