Alexandre Louis Simon Lejeune

Belgian botanist (1779 - 1858).

Alexandre Louis Simon Lejeune (23 December 1779 in Verviers – 28 December 1858 in Verviers) was a medical doctor and botanist. In 1801 he entered the school of medicine in Paris, but was subsequently forced to abandon his studies due to military conscription. After finishing his military duties in late 1804, he relocated to Ensival as a physician. Three years later, he settled permanently in his hometown of Verviers. With Richard Courtois (1806–1835), he was co-author of "Compendium florae belgicae". He was a mentor to Marie-Anne Libert, who he introduced to Augustin Pyramis de Candolle. Liber

Abbreviations: Lej.
Occupations: physician, botanist, botanical collector
Citizenships: Belgium
Languages: German
Dates: 1779-12-23T00:00:00Z – 1858-12-28T00:00:00Z
Birth place: Verviers
Direct attributions: 20 plants, 0 fungi
Authorship mentions: 27 plants, 0 fungi

20 plants attributed, 7 plants contributed to27 plants:

Luzula multiflora (Heath Wood-rush) (Ehrh.) Lej. 1811
perennial and medicinal plant species in the juncaceae family
Luzula multiflora, the common woodrush or heath wood-rush, is a species of flowering plant in the rush family. It is native to Europe, eastern Asia, northern Africa, northern North America, including Canada, and in northern regions of the United States. The native status of common woodrush is under some debate. While Flora of North America list it as introduced, the more common opinion is it is a circumpolar species native in North America and in parts of Europe and Asia. The taxonomy of the wood rush complex involving several Luzula spp. has a history of instability. In the past, common
Alisma gramineum (Ribbon-leaved Water Plantain) Lej. 1811
perennial and medicinal plant species in the alismataceae family
Alisma gramineum is a small aquatic plant in the water-plantain family. It has several common names including narrowleaf water-plantain, ribbonleaf water-plantain or ribbon-leaved water-plantain, and grass-leaved water-plantain. It grows in mud or submerged in shallow fresh or brackish water in marshy areas.
Arctium nemorosum (Wood Burdock) Lej. 1833
plant species in the asteraceae family
Wood burdock (Arctium nemorosum) is a species of flowering plant belonging to the family Asteraceae. Its native range is Europe to Caucasus. It was first described in 1833.
Pulmonaria montana (Mountain Lungwort) Lej. 1811
perennial plant species in the boraginaceae family
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Luzula congesta (Heath Woodrush) (Thuill.) Lej. 1811
perennial plant species in the juncaceae family
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Rubus montanus Lib. ex Lej. 1813
plant species in the rosaceae family
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Rubus arduennensis Lib. ex Lej. 1813
plant species in the rosaceae family
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Rubus viscosus Weihe ex Lej. & Courtois 1831
plant species in the rosaceae family
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Rubus axillaris Weihe ex Lej. & Courtois 1831
plant species in the rosaceae family
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Rubus libertianus Weihe ex Lej. & Courtois 1831
plant species in the rosaceae family
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Rubus cinerascens Weihe ex Lej. & Courtois 1831
plant species in the rosaceae family
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Rubus serpens Weihe ex Lej. & Courtois 1831
plant species in the rosaceae family
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Verbascum lychnitis var. pulverulentum Lej. 1825
plant variety in the scrophulariaceae family
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Verbascum × ambiguum Lej. 1825
plant hybrid species in the scrophulariaceae family
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Scirpus limburgensis Lej.
plant species in the cyperaceae family
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Rubus weihei Lej. & Courtois 1831
plant species in the rosaceae family
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Rubus bracteosus Weihe ex Lej. & Courtois 1831
plant species in the rosaceae family
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Rosa × malmundariensis Lej. 1811
perennial plant hybrid species in the rosaceae family
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Mentha oblongifolia Lej. 1841
plant species in the lamiaceae family
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Digitalis purpurascens Lej. 1813
plant species in the plantaginaceae family
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Stellaria neglecta (Greater Chickweed) (Lej.) Weihe 1825
annual and medicinal plant species in the caryophyllaceae family
Stellaria neglecta, greater chickweed, is an annual to short-lived herbaceous perennial flowering plant in the family Caryophyllaceae. It is native to Europe and Asia, where it grows in hedges and woodland margins on neutral to slightly acid, damp soils, and is widespread but rarely abundant. It has been introduced to North America, where it has been spreading in recent decades.
Bromus bromoideus (Michelaria Bromoïdea) (Lej.) Crép. 1867
extinct in the wild and annual plant species in the poaceae family
Bromus bromoideus, the brome of the Ardennes, is a species of grass in the genus Bromus. Genetic studies suggest that it rather should be regarded as a variant of Bromus secalinus. It was found in the calcareous meadows of the provinces of Liège and Luxembourg in Belgium, notably around the towns of Rochefort, Beauraing and Comblain-au-Pont, where it was first discovered in 1821. It was thought to be extinct since the 1930s until preserved seeds were rediscovered in collections of the Belgian National Botanic Garden by the English botanist David Aplin and as a result of the publicity, seeds
Noccaea caerulescens ssp. calaminaris (Lej.) Holub 1998
plant subspecies in the brassicaceae family
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Mentha × villosa cordifolia (Opiz ex Lej. & Courtois) P.D.Sell 2009
plant hybrid variety in the lamiaceae family
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Fallopia convolvulus var. subalatum (Lej. & Court.) D.H.Kent 1981
plant variety in the polygonaceae family
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Arctium minus ssp. nemorosum (Lej.) Syme 1866
plant subspecies in the asteraceae family
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Arctium lappa ssp. nemorosum (Greater × Northern Burdock) (Lej.) P.D.Sell 2006
plant subspecies in the asteraceae family
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