Pieter Jansen

Dutch botanist (1882–1955).

Abbreviations: Jansen
Occupations: botanist
Citizenships: Kingdom of the Netherlands
Languages: Dutch
Dates: 1882-01-25T00:00:00Z – 1955-04-02T00:00:00Z
Birth place: Rotterdam
Direct attributions: 27 plants, 0 fungi
Authorship mentions: 33 plants, 0 fungi
Links:IPNIVIAF

27 plants attributed, 6 plants contributed to33 plants:

Puccinellia macquariensis (Cheeseman) Allan & Jansen 1939
perennial plant species in the poaceae family
Puccinellia macquariensis is a species of salt-tolerant, perennial, tufted grass in the family Poaceae. It is endemic to Australia's subantarctic Macquarie Island in the Southern Ocean, though very closely related to P. chathamica of New Zealand's southern offshore islands. It grows to between 4 and 25 cm in height and is common in dense patches on coastal cliffs and stacks. It flowers from November to June.
Oryza longiglumis Jansen 1953
perennial plant species in the poaceae family
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Poa wisselii Jansen 1953
perennial plant species in the poaceae family
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Eriachne burkittii Jansen 1930
annual and perennial plant species in the poaceae family
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Themeda novoguineensis (Reeder) Jansen 1952
perennial plant species in the poaceae family
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Themeda idjensis Jansen
plant species in the poaceae family
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Setaria roemeri Jansen 1953
annual plant species in the poaceae family
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Puccinellia × krusemaniana Jansen & Wacht. 1949
annual plant hybrid species in the poaceae family
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Puccinellia × feekesiana Jansen & Wacht. 1951
perennial plant hybrid species in the poaceae family
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Poa lamii Jansen 1953
perennial plant species in the poaceae family
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Poa borneensis Jansen 1953
perennial plant species in the poaceae family
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Ottochloa grandiflora Jansen 1953
perennial plant species in the poaceae family
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Microstegium steenisii Jansen 1953
annual plant species in the poaceae family
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Iseilema minutiflorum Jansen 1953
annual plant species in the poaceae family
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Iseilema maculatum Jansen 1953
annual plant species in the poaceae family
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Ischaemum celebicum Jansen 1953
perennial plant species in the poaceae family
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Isachne surgens Jansen 1953
perennial plant species in the poaceae family
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Isachne langkawiensis Jansen 1953
perennial plant species in the poaceae family
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Festuca sumatrana Jansen 1953
perennial plant species in the poaceae family
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Festuca parvipaleata Jansen 1953
perennial plant species in the poaceae family
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Dryopteris × deweveri (Jansen) Jansen & Wachter 1934
perennial plant hybrid species in the dryopteridaceae family
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Dichanthium mucronulatum Jansen 1952
perennial plant species in the poaceae family
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Puccinellia capillaris (Lilj.) Jansen 1951
perennial plant species in the poaceae family
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Themeda idjenensis Jansen 1952
perennial plant species in the poaceae family
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Puccinellia novaezealandiae (Petrie) Allan & Jansen 1939
plant species in the poaceae family
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Puccinellia chathamica (Cheeseman) Allan & Jansen 1939
perennial plant species in the poaceae family
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Capillipedium parviflorum var. mutispiculum (Ohwi) Jansen
plant variety in the poaceae family
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Ischaemum nativitatis Jansen ex Renvoize 1985
perennial plant species in the poaceae family
Ischaemum nativitatis, commonly known as the Christmas Island duck-beak, is a tropical grass in the family Poaceae. It is endemic to Christmas Island, an Australian territory in the north-eastern Indian Ocean. The specific epithet comes from the Latin nativitas ("birth") referring to the birth of Christ, or Christmas, after the name of the island.
Rytidosperma mamberamense (Jansen) Connor & Edgar 1979
perennial plant species in the poaceae family
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Rytidosperma bonthainicum (Jansen) Veldkamp 2004
perennial plant species in the poaceae family
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