Pierre Delforge

Belgian botanist.

Abbreviations: P.Delforge

Occupations: botanist

Citizenships: Belgium

Dates: 1945-01-01T00:00:00Z

Direct attributions: 53 plants, 0 fungi

Authorship mentions: 67 plants, 0 fungi

Links:IPNI VIAF

53 plants attributed, 14 plants contributed to67 plants:

Himantoglossum robertianum (Giant Orchid) (Loisel.) P.Delforge 1999

plant species in the orchidaceae family

Himantoglossum robertianum is a species of flowering plant in the orchid family (Orchidaceae) native to the Mediterranean Basin.

Gymnadenia austriaca (Black Vanilla Orchid) (Teppner & E.Klein) P.Delforge 1998

plant species in the orchidaceae family

Gymnadenia austriaca is a species of plant in the family Orchidaceae. It is endemic to the Alps and the Pyrenees, where it grows on calcareous alpine grassland from 1,500–2,500 metres (4,900–8,200 ft). It was first described by Teppner and Klein as a subspecies of Nigratella nigra (ssp austriaca) and was subsequently reclassified as G. austriaca as an apomictic member of the G. nigra group within the genus Gymnadenia.

Epipactis exilis P.Delforge 2004

perennial plant species in the orchidaceae family

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Himantoglossum metlesicsianum (Metlesics' Himantoglossum) (W.P.Teschner) P.Delforge 1999

endangered plant species in the orchidaceae family

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Himantoglossum comperianum (Komper's Orchid) (Steven) P.Delforge 1999

plant species in the orchidaceae family

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Orchis sitiaca (Cretan Orchid) (Renz) P.Delforge 1990

endangered plant species in the orchidaceae family

Orchis sitiaca is a species of orchid. It is a tuberous geophyte endemic to Crete, where it is native to the islands' central and eastern mountains. The species is similar to Orchis anatolica, but is typically stronger and taller, growing 10 to 50 cm tall. It typically flowers between April 1 and early May. It grows in meadow-like areas in low shrubland (phrygana), where it can form large colonies, and more seldom in pinewoods, up to 1,400 meters elevation. It grows in full sun or part shade, and prefers weakly acid subsoil, including areas of weathered serpentinite.

Orchis troodi (Renz) P.Delforge 1990

plant species in the orchidaceae family

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Serapias × walravensiana P.Delforge 1997

plant hybrid species in the orchidaceae family

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Orchis × serraniana P.Delforge 1989

plant hybrid species in the orchidaceae family

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Orchis × klopfensteiniae P.Delforge 1985

plant hybrid species in the orchidaceae family

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× Orchidactylorhiza atacina (P.Delforge) P.Delforge 2000

plant hybrid species in the orchidaceae family

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Ophrys × raynaudii P.Delforge 1994

plant hybrid species in the orchidaceae family

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Ophrys × piscinica P.Delforge & C.Delforge 1986

plant hybrid species in the orchidaceae family

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Ophrys × ettlingeriana P.Delforge 1997

plant hybrid species in the orchidaceae family

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Ophrys × cicmiriana P.Delforge 2006

plant hybrid species in the orchidaceae family

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Ophrys × borgersiae P.Delforge 1983

plant hybrid species in the orchidaceae family

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Epipactis × robatschii Gévaudan & P.Delforge 2004

perennial plant hybrid species in the orchidaceae family

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Epipactis × gevaudanii P.Delforge 1997

perennial plant hybrid species in the orchidaceae family

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Epipactis × gerbaudiorum P.Delforge 1997

perennial plant hybrid species in the orchidaceae family

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Epipactis × bruxellensis P.Delforge 1996

perennial plant hybrid species in the orchidaceae family

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× Dactylodenia lawalreei P.Delforge & D.Tyteca 1982

plant hybrid species in the orchidaceae family

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Ophrys × quintartiana P.Delforge 1997

plant hybrid species in the orchidaceae family

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Ophrys vasconica (O.Danesch & E.Danesch) P.Delforge 1991

plant species in the orchidaceae family

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Ophrys heterochila (Renz & Taubenheim) P.Delforge 1991

plant species in the orchidaceae family

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Ophrys × dessartiana P.Delforge 1997

plant hybrid species in the orchidaceae family

Ophrys × dessartiana, synonyms including Ophrys × tumentia, is a hybrid plant species in the family Orchidaceae (orchids). As of September 2025, Plants of the World Online treated the species as "unplaced".

Gymnadenia austriaca var. gallica (E.Breiner & R.Breiner) P.Delforge 1998

plant variety in the orchidaceae family

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Dactylorhiza phoenissa (B.Baumann & H.Baumann) P.Delforge 2015

plant species in the orchidaceae family

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Serapias orientalis var. carica (Carian Tongue Orchid) (H.Baumann & Künkele) P.Delforge 2008

plant variety in the orchidaceae family

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Ophrys × walravensiorum P.Delforge 1994

plant hybrid species in the orchidaceae family

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Ophrys × terschureniana P.Delforge 1989

plant hybrid species in the orchidaceae family

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