Ernst Jacobus van Jaarsveld

South african botanist.

Ernst Jacobus van Jaarsveld (born February 19, 1953) is a South African botanist. He served as a horticulturist and curator at the Kirstenbosch Botanical Gardens from 1976 until his retirement in 2015. As an author and co-author, he has described over 80 new plant species and is a member of the International Organization for Succulent Plant Study. Several plant species have been named in his honor, including Plectranthus ernstii in 1982, Anginon jaarsveldii, and Eriosperum ernstii.

Abbreviations: van Jaarsv.
Occupations: botanist, botanical collector
Citizenships: South Africa
Languages: English
Dates: 1953-01-01T00:00:00Z
Birth place: Johannesburg
Direct attributions: 207 plants, 0 fungi
Authorship mentions: 228 plants, 0 fungi

207 plants attributed, 21 plants contributed to228 plants:

Gasteria brachyphylla (Short Oxtongue) (Salm-Dyck) van Jaarsv. 1992
perennial plant species in the asphodelaceae family
Gasteria brachyphylla, the Klein Karoo gasteria, is succulent plant native to the Western Cape, South Africa.
Gasteria vlokii (Swartberg Oxtongue) van Jaarsv. 1987
perennial plant species in the asphodelaceae family
Gasteria vlokii, the Swartberg gasteria, is a succulent plant native to only a few widely separated spots in the Swartberg mountains of the southern Cape, South Africa.
Gasteria glomerata (Clustering-ball Oxtongue) van Jaarsv. 1991
perennial plant species in the asphodelaceae family
Gasteria glomerata, the Kouga gasteria, is a small succulent plant native to the Eastern Cape, South Africa.
Aloe meyeri (Rosyntjie Aloe) van Jaarsv. 1981
plant species in the asphodelaceae family
Aloe meyeri is a succulent plant species from South Africa. The species was first formally described by Ernst Jacobus van Jaarsveld in 1981.
Aloe kouebokkeveldensis van Jaarsv. & A.B.Low 2004
perennial plant species in the asphodelaceae family
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Salvia thermarum (Hot Sage) van Jaarsv. 1999
plant species in the lamiaceae family
Salvia thermarum (Goudini sage) is a perennial native to South Africa, discovered in 1998 by Ernst van Jaarsveld of Cape Town's Kirstenbosch National Botanical Garden. The common name is based on the location of the plant's discovery, near Goudini Spa, approximately 120 km from Cape Town—the specific epithet, thermarum, refers to the thermal baths where it was found. It is only found native in the Cape Provinces. Salvia thermarum is an erect plant that grows up to 1 m (3.3 ft) high from a stoloniferous base. The dark green stems have glandular hairs when young, getting smooth with age. The
Portulacaria armiana (Whip Porkbush) van Jaarsv. 1984
plant species in the didiereaceae family
Portulacaria armiana, also known as the whipstick-porkbush, is a species of succulent plant native to southwestern Namibia.
Gasteria tukhelensis (Tugela Oxtongue) van Jaarsv. 2005
perennial plant species in the asphodelaceae family
Gasteria tukhelensis, or Tugela gasteria, is a species of succulent plant native to the Tugela River valley in KwaZulu-Natal Province, South Africa.
Gasteria glauca (Pale Oxtongue) van Jaarsv. 1998
perennial plant species in the asphodelaceae family
Gasteria glauca, the Kouga gasteria, is a succulent plant of the family Asphodelaceae native to the cliffs and rocky hillsides above the Kouga River, in the Eastern Cape, South Africa. It is most closely related to the species G. ellaphieae, G. vlokii and G. nitida. The flowers of all four species are also nearly identical, displaying the signature “gastric”, stomach-shaped blossoms that earn the genus the name of Gasteria. The blossoms are a favorite among pollinators, such as bees, lepidopterans, hoverflies, hummingbirds and sunbirds. This species has thick and fleshy bluish—hence the term
Gasteria ellaphieae (Ellaphie’s Oxtongue) van Jaarsv. 1991
perennial plant species in the asphodelaceae family
Gasteria ellaphieae, or Ellaphie's gasteria, is a succulent plant, native to the cliffs above the Kouga dam, in the Eastern Cape, South Africa. It is most closely related to the species Gasteria glauca, and also to Gasteria vlokii and Gasteria nitida. The flowers of all four species are also almost identical. However, it can be distinguished by its short, triangular (usually recurved) leaves, which are densely covered in tiny tubercles. Its inflorescence is often branched.
Crassula cremnophila van Jaarsv. & A.E.van Wyk 1999
plant species in the crassulaceae family
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Crassula badspoortensis van Jaarsv. 2001
plant species in the crassulaceae family
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Cotyledon eliseae van Jaarsv. 1997
plant species in the crassulaceae family
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Aloe komaggasensis (Komaggas Coral Aloe) Kritz. & van Jaarsv. 1985
perennial plant species in the asphodelaceae family
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Tylecodon aurusbergensis G.Will. & van Jaarsv. 1992
plant species in the crassulaceae family
Tylecodon aurusbergensis is a species of plant in the family Crassulaceae. It is endemic to Namibia. Its natural habitat is rocky areas. It is threatened by habitat loss.
Roosia van Jaarsv. 2017
plant genus in the aizoaceae family
Lampranthus is a genus of succulent plants in the family Aizoaceae, which are native to Namibia and the Cape Provinces of South Africa in southern Africa.
Ornithogalum sardienii (Potato Chink) van Jaarsv. 1994
plant species in the asparagaceae family
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Gasteria polita (Polished Oxtongue) van Jaarsv. 2001
perennial plant species in the asphodelaceae family
Gasteria polita, the polished gasteria, is a recently discovered succulent plant restricted to a locality in the Afro-temperate forest of the Western Cape, South Africa.
Gasteria doreeniae (Doreen’s Oxtongue) van Jaarsv. & A.E.van Wyk 2004
plant species in the asphodelaceae family
Gasteria doreeniae is a succulent plant belonging to the genus Gasteria and is part of the fynbos. The species is endemic to the Eastern Cape and occurs at Swartwaterspoort in the Riebeek East area where the only population is. The plant is considered critically rare but has no threats.
Freylinia crispa (Kouga Honey-bells) van Jaarsv. 1991
plant species in the scrophulariaceae family
Freylinia crispa is a flowering plant in the figwort family.
Cotyledon pendens van Jaarsv. 2003
plant species in the crassulaceae family
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Aloe omavandae van Jaarsv. 2004
plant species in the asphodelaceae family
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Aloe kaokoensis van Jaarsv., Swanepoel & A.E.van Wyk 2006
plant species in the asphodelaceae family
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Aloe dabenorisana (Dabenoris Aloe) van Jaarsv. 1982
plant species in the asphodelaceae family
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Aloe challisii (Steenkampsberg Aloe) van Jaarsv. & A.E.van Wyk 2006
perennial plant species in the asphodelaceae family
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Tylecodon ellaphieae van Jaarsv. 1989
plant species in the crassulaceae family
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Tylecodon bruynsii van Jaarsv. & S.A.Hammer 2009
plant species in the crassulaceae family
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Tylecodon bayeri (Ribbed Butterbush) van Jaarsv. 1988
plant species in the crassulaceae family
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Stoeberia utilis (Red Mesemb) (L.Bolus) van Jaarsv. 1994
plant species in the aizoaceae family
Stoeberia utilis, the red mesemb, is a tree that is native to the Northern Cape and the Western Cape as well as Namibia. The tree's FSA number is 103.5. \The plant has two subspecies: Stoeberia utilis subsp. lerouxiae van Jaarsv. Stoeberia utilis subsp. utilis
Stoeberia frutescens (Scythefig) (L.Bolus) van Jaarsv. 1994
plant species in the aizoaceae family
Stoeberia frutescens is a shrub native to the Northern Cape, the Western Cape and Namibia. It primarily grows in drier environments.
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