Hellmut R. Toelken

Australian botanist (1939 - ).

Hellmut R. Toelken (born 1939 in Windhoek, South-West Africa, today Namibia) is a South Australian botanist. He retired in December 2008 from the position of senior biologist at the State Herbarium of South Australia, but remains an honorary research associate. Earlier he was with the Botanical Research Institute, Department of Agricultural Technical Services, Pretoria, S Africa. His interests include the genera Kunzea, Hibbertia, Crassula and Carpobrotus. He is the author of the book A Revision of the Genus Crassula in Southern Africa. The standard author abbreviation Toelken is used to indic

Abbreviations: Toelken
Occupations: botanist, botanical collector
Citizenships: South Africa
Languages: German, English
Dates: 1939-09-01T00:00:00Z
Birth place: Windhoek
Direct attributions: 352 plants, 0 fungi
Authorship mentions: 365 plants, 0 fungi

352 plants attributed, 13 plants contributed to365 plants:

Tylecodon (Butterbushes) Toelken 1978
plant genus in the crassulaceae family
Tylecodon is a genus of succulent plants in the family Crassulaceae, native to southern Africa. Until the late 1970s all these plants were included in the genus Cotyledon, but in 1978 Helmut Toelken of the Botanical Research Institute, Pretoria, split them off into a genus of their own.
Crassula colligata (Aussie Pygmyweed) Toelken 2002
annual plant species in the crassulaceae family
Crassula colligata is a herb in the family Crassulaceae that is native to southern Australia and New Zealand. There are two recognised subspecies: Crassula colligata subsp. colligata. and Crassula colligata subsp. lamprosperma. The annual herb has an erect habit and typically grows to a height of 16 centimetres (6.3 in). In Western Australia, the species is commonly found on cliffs, scarps, in gullies, behind dunes and near salt lakes along the south coast in the Great Southern, Wheatbelt and Goldfields-Esperance regions. Crassula colligata subsp. lamprosperma has an introduced range in
Crassula ammophila Toelken 1975
plant species in the crassulaceae family
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Crassula cymbiformis Toelken 1985
plant species in the crassulaceae family
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Crassula brachystachya (Short Spike Crassula) Toelken 1975
plant species in the crassulaceae family
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Tylecodon wallichii (Pegleg Butterbush) (Harv.) Toelken 1978
plant species in the crassulaceae family
Tylecodon wallichii is a species of succulent plant in the genus Tylecodon belonging to the family Crassulaceae. The species is named in honour of Nathaniel Wallich, early 19th century Danish plant hunter, botanist and physician.
Tylecodon striatus (Groovy Butterbush) (Hutchison) Toelken 1978
plant species in the crassulaceae family
Tylecodon striatus is a species of Tylecodon native to South Africa Cape Provinces
Tylecodon schaeferianus (Dinter) Toelken 1978
plant species in the crassulaceae family
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Tylecodon paniculatus (Buttertree) (L.f.) Toelken 1978
plant species in the crassulaceae family
Tylecodon paniculatus, also known as butter bush, butter tree, butterboom or rooisuikerblom (Afrikaans), is a species of succulent plant in the genus Tylecodon belonging to the family Crassulaceae.
Tylecodon leucothrix (Whitehair Butterbush) (C.A.Sm.) Toelken 1978
plant species in the crassulaceae family
Tylecodon leucothrix is a species of Tylecodon native to Eastern Little Karoo in South Africa. It was first described in Bothalia by Toelken in 1978.
Tylecodon decipiens Toelken 1978
plant species in the crassulaceae family
Tylecodon decipiens is a species of flowering plant in the family Crassulaceae native to South Africa.
Tylecodon buchholzianus (Pork Butterbush) (Schuldt & P.Stephan) Toelken 1978
plant species in the crassulaceae family
Tylecodon buchholzianus is a species of succulent plant in the genus Tylecodon belonging to the family Crassulaceae.
Crassula streyi Toelken 1973
plant species in the crassulaceae family
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Crassula depressa (Eckl. & Zeyh.) Toelken 1977
annual plant species in the crassulaceae family
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Tylecodon viridiflorus (Toelken) Toelken 1978
plant species in the crassulaceae family
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Tylecodon ventricosus (Nanta Butterbush) (Burm.f.) Toelken 1978
plant species in the crassulaceae family
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Tylecodon torulosus Toelken 1978
plant species in the crassulaceae family
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Tylecodon suffultus Bruyns ex Toelken 1978
plant species in the crassulaceae family
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Tylecodon singularis (R.A.Dyer) Toelken 1978
plant species in the crassulaceae family
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Tylecodon rubrovenosus (Dinter) Toelken 1978
plant species in the crassulaceae family
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Tylecodon reticulatus (Oukoe Butterbush) (L.f.) Toelken 1978
plant species in the crassulaceae family
Tylecodon reticulatus is a species of succulent plant in the genus Tylecodon belonging to the family Crassulaceae.
Tylecodon racemosus (Potato Butterbush) (Harv.) Toelken 1978
plant species in the crassulaceae family
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Tylecodon pygmaeus (Pygmy Butterbush) (W.F.Barker) Toelken 1978
plant species in the crassulaceae family
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Tylecodon hirtifolius (W.F.Barker) Toelken 1978
plant species in the crassulaceae family
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Tylecodon grandiflorus (Grand Butterbush) (Burm.f.) Toelken 1978
plant species in the crassulaceae family
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Kunzea glabrescens (Spearwood) Toelken 1996
plant species in the myrtaceae family
Kunzea glabrescens, commonly known as spearwood, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a large shrub with leaves and flowers similar to those of K. ericifolia but has differently shaped bracteoles. It is often common in wet areas around Perth.
Crassula peculiaris (Toelken) Toelken & Wickens 1985
plant species in the crassulaceae family
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Crassula minuta (Minicups) Toelken 1975
annual plant species in the crassulaceae family
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Boscia oleoides (Karoo Shepherdstree) (Burch. ex DC.) Toelken 1969
plant species in the capparaceae family
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Tylecodon occultans (Hairball Butterbush) (Toelken) Toelken 1978
plant species in the crassulaceae family
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