Roger Marcus Polhill

British botanist (1937 - ).

Abbreviations: Polhill
Occupations: botanist
Citizenships: United Kingdom
Languages: English
Dates: 1937-01-01T00:00:00Z
Birth place: Nairobi
Direct attributions: 379 plants, 0 fungi
Authorship mentions: 381 plants, 0 fungi

379 plants attributed, 2 plants contributed to381 plants:

Mirbelieae Polhill & Crisp 1982
plant tribe in the fabaceae family
The Mirbelioids are an informal subdivision of the plant family Fabaceae that includes the former tribes Bossiaeeae and Mirbelieae. They are consistently recovered as a monophyletic clade in molecular phylogenies. The Mirbelioids arose 48.4 ± 1.3 million years ago (in the early Eocene). Members of this clade are mostly ericoid (sclerophyllous) shrubs with yellow and red ('egg and bacon') flowers found in Australia, Tasmania, and Papua-New Guinea. The name of this clade is informal and is not assumed to have any particular taxonomic rank like the names authorized by the ICBN or the ICPN.
Aganope thyrsiflora (Benth.) Polhill 1971
plant species in the fabaceae family
Aganope thyrsiflora is a liana which shows the characters of a shrub when small. It is found in most of the tropical Asian countries.
Plicosepalus acaciae (Zucc.) Wiens & Polhill 1985
plant species in the loranthaceae family
Plicosepalus acaciae (syn. Loranthus acaciae), the acacia strap flower, is a species of hemiparasitic flowering plant in the family Loranthaceae. It is native to northeastern Africa, the Levant, and the Arabian Peninsula. As its common and scientific names suggest, it parasitizes acacias; Vachellia tortilis subsp. raddiana (formerly Acacia raddiana) and V. t. subsp. tortilis (formerly A. tortilis). It seeds are dispersed by the white-spectacled bulbul (Pycnonotus xanthopygos).
Dalbergia eremicola Polhill 1969
plant species in the fabaceae family
Dalbergia eremicola is a species of legume in the family Fabaceae. It is found in Kenya and Somalia.
Agelanthus pungu (De Wild.) Polhill & Wiens 1992
plant species in the loranthaceae family
The blue-leaved mistletoe (Agelanthus pungu) is a species of perennial, parasitic plant in the family Loranthaceae, which is native to the southeastern Afrotropics.
Agelanthus natalitius (Natal Mistletoe) (Meisn.) Polhill & Wiens 1992
plant species in the loranthaceae family
Agelanthus natalitius is a species of hemiparasitic plant in the family Loranthaceae, which is native to Eswatini, Mozambique, Botswana, and Zimbabwe and to the Cape Provinces, KwaZulu-Natal, and Northern Provinces in South Africa.
Tapinanthus letouzeyi (Balle) Polhill & Wiens 1992
vulnerable plant species in the loranthaceae family
Tapinanthus letouzeyi is a species of plant in the family Loranthaceae. It is endemic to Cameroon. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Pearsonia cajanifolia (Harv.) Polhill 1974
perennial plant species in the fabaceae family
Pearsonia cajanifolia is a South African shrublet belonging to the family of Fabaceae, and one of 13 species in the genus, usually herbs or shrublets with woody rootstocks and all occurring in Africa south of the equator with the exception of 1 species found on Madagascar. P. cajanifolia is commonly found in submontane grassland, at altitudes 1350–2100 m, in the South African provinces of Free State, Gauteng, Limpopo, Mpumalanga, and North West, also in Zimbabwe and Malawi.
Crotalaria mentiens Polhill 1982
endangered and annual plant species in the fabaceae family
Crotalaria mentiens is a species of plant in the family Fabaceae. It is found only in Cameroon. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry lowland grassland. It is threatened by habitat loss.
Agelanthus validus Polhill & Wiens 1998
endangered plant species in the loranthaceae family
Agelanthus validus is a species of hemiparasitic plant in the family Loranthaceae, which is found in the Usambara Mountains, Tanzania
Agelanthus uhehensis (Engl.) Polhill & Wiens 1992
endangered plant species in the loranthaceae family
Agelanthus uhehensis is a species of hemiparasitic plant in the family Loranthaceae, which is native to Tanzania.
Agelanthus rondensis (Engl.) Polhill & Wiens 1992
critically endangered plant species in the loranthaceae family
Agelanthus rondensis is a species of hemiparasitic plant in the family Loranthaceae. It is endemic to Tanzania. This species has been found only on the Rondo plateau of Lindi Region, Tanzania where the threat is from conversion of habitat for agriculture. There is a continuing decline in the extent and quality of habitat. This species has not been seen since its discovery in 1903 in what is a well-surveyed region. Thus, it is possibly extinct. No information is available on habitat or host preference.
Agelanthus nyasicus (Baker & Sprague) Polhill & Wiens 1992
plant species in the loranthaceae family
Agelanthus nyasicus is a species of hemiparasitic plant in the family Loranthaceae, which is native to Botswana, Malawi, Mozambique, Tanzania, Zambia, Zaïre and Zimbabwe.
Agelanthus myrsinifolius (Engl. & K.Krause) Polhill & Wiens 1992
vulnerable plant species in the loranthaceae family
Agelanthus myrsinifolius is a species of hemiparasitic plant in the family Loranthaceae, which is native to Rwanda, Zaire and Burundi.
Agelanthus keilii (Engl. & K.Krause) Polhill & Wiens 1992
endangered plant species in the loranthaceae family
Agelanthus keilii is a species of hemiparasitic plant in the family Loranthaceae, which is native to Rwanda, Tanzania and Burundi.
Agelanthus kayseri (Engl.) Polhill & Wiens 1992
plant species in the loranthaceae family
Agelanthus kayseri is a species of hemiparasitic plant in the family Loranthaceae, which is native to Kenya, Tanzania and Somalia.
Agelanthus igneus (Danser) Polhill & Wiens 1992
endangered plant species in the loranthaceae family
Agelanthus igneus is a species of hemiparasitic plant in the family Loranthaceae, which is native to Mozambique and Tanzania.
Agelanthus atrocoronatus Polhill & Wiens 1998
endangered plant species in the loranthaceae family
Agelanthus atrocoronatus is a species of hemiparasitic plant in the family Loranthaceae. It is endemic to Tanzania. It is known only from the Mufindi Plateau in Tanzania, and was last collected in the 1980s.
Aganope heptaphylla (L.) Polhill 1971
plant species in the fabaceae family
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Tapinanthus quequensis (Kwekwebush) (Weim.) Polhill & Wiens 1992
plant species in the loranthaceae family
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Pearsonia mesopontica Polhill 1974
perennial plant species in the fabaceae family
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Pearsonia grandifolia (Bolus) Polhill 1974
perennial plant species in the fabaceae family
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Pearsonia bracteata (Benth.) Polhill 1974
perennial plant species in the fabaceae family
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Indigofera ammoxylon (DC.) Polhill 1986
plant species in the fabaceae family
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Crotalaria exaltata Polhill 1968
plant species in the fabaceae family
Crotalaria exaltata is a species of flowering plant in the family Fabaceae. It is a shrub or tree native to and found only in Ethiopia.
Cadaba parvula Polhill 1963
critically endangered plant species in the capparaceae family
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Agelanthus pennatulus (Sprague) Polhill & Wiens 1992
vulnerable plant species in the loranthaceae family
Agelanthus pennatulus is a species of hemiparasitic plant in the family Loranthaceae, which is found in Tanzania, and Kenya.
Agelanthus microphyllus Polhill & Wiens 1998
endangered plant species in the loranthaceae family
Agelanthus microphyllus is a species of hemiparasitic plant in the family Loranthaceae, which is native to Ethiopia, Kenya and Tanzania.
Agelanthus longipes (Baker & Sprague) Polhill & Wiens 1992
vulnerable plant species in the loranthaceae family
Agelanthus longipes is a species of hemiparasitic plant in the family Loranthaceae, which is found in the Tanzania, Mozambique and Kenya.
Agelanthus crassifolius (Wiens) Polhill & Wiens 1998
plant species in the loranthaceae family
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