Noël Martin Joseph de Necker

Galeopsis segetum, commonly known as downy hemp-nettle, is a species of flowering plant in the sage family, Lamiaceae. It grows as a weed in arable ground throughout Europe. Although superficially resembling the stinging nettle it is of a different family and does not sting.

Euphorbia seguieriana is a species of flowering plant belonging to the family Euphorbiaceae. Its native range is Europe to China and Pakistan.

Willemetia is a genus of flowering plants in the family Asteraceae. It is native to Europe, Iran and the Caucasus. Species Willemetia stipitata (Jacq.) Dalla Torre - Central Europe (France, Germany, Italy, Serbia, etc.) Willemetia tuberosa Fisch. & C.A.Mey. ex DC. - Iran, Caucasus

Hertia is a genus of flowering plants in the sunflower family, native to Africa and southwestern Asia. Species

Psiguria is a genus of flowering plants belonging to the family Cucurbitaceae. Its native range is Mexico to Tropical America. Species: Psiguria pedata (L.) R.A.Howard Psiguria racemosa C.Jeffrey Psiguria ternata (M.Roem.) C.Jeffrey Psiguria triphylla (Miq.) C.Jeffrey Psiguria umbrosa (Kunth) C.Jeffrey Psiguria warscewiczii (Hook.f.) Wunderlin

Oropogon is a genus of lichen-forming ascomycetes in the large family Parmeliaceae. It is a genus of roughly 40 currently accepted species. It was previously included in the family Alectoriaceae, but this group has since been subsumed into the Parmeliaceae. All members of the genus have a fruticose growth form. The most obvious distinguishing feature character which separates Oropogon from the rest of the family is the large brown, muriform ascospores (i.e. with transverse and longitudinal walls) that occur singly in each ascus.

Aposeris is a genus of flowering plants in the family Asteraceae. There is only one known species, Aposeris foetida, widespread across much of Europe. The name was coined by Necker in 1790, but all names in that publication have been declared rejected. Therefore Cassini's 1827 usage is considered the validation of the name. Cassini did not, however, did not validly republish Necker's species name, so Lessing is credited with the formal recombination

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Dactylorhiza is a genus of flowering plants in the orchid family Orchidaceae. Its species are commonly called marsh orchids or spotted orchids. Dactylorhiza were previously classified under Orchis, which has two round tubers.

Chrozophora is a plant genus of the family Euphorbiaceae first described as a genus in 1824. It comprises monoecious herbs or undershrubs. The genus is widespread across Europe, Africa, and Asia. Chrozophora tinctoria produced the blue-purple colorant "turnsole" used in medieval illuminated manuscripts and as a food colorant. Species Chrozophora brocchiana - Sahara and Sahel regions of Africa; Cape Verde Chrozophora gangetica - India Chrozophora mujunkumi - Uzbekistan Chrozophora oblongifolia - E Africa, Middle East, India, Pakistan Chrozophora plicata - Sub-Saharan Africa, Arabian Peninsula,

Berchemia is a genus of plants in the family Rhamnaceae, named after Dutch botanist Berthout van Berchem. They are climbing plants or small to medium-sized trees that occur mostly in Southeast Asia, with one species in North America.

Psophocarpus is a genus of flowering plants in the legume family, Fabaceae. It includes nine species of climbing herbs or subshrubs native to tropical Africa. Typical habitats include seasonally-dry tropical forest and forest margins, moist wooded grassland and grassland, thicket, swamp, and secondary vegetation. It belongs to subfamily Faboideae.

The docks and sorrels, genus Rumex, are a genus of about 200 species of annual, biennial, and perennial herbs in the buckwheat family, Polygonaceae. Members of this genus are common perennial herbs with a worldwide native distribution in temperate and subtropical climates. Some are nuisance weeds (and are sometimes called dockweed or dock weed), but some are grown for their edible leaves. Rumex species are used as food plants by the larvae of a number of Lepidoptera species, and are the only host plants of the butterflies Lycaena dispar and Lycaena rubidus.

Bellucia is a genus of plants in the family Melastomataceae.

Gagnebina is a genus of flowering plants in the family Fabaceae. It belongs to the mimosoid clade of subfamily Caesalpinioideae. It includes five species native to the islands of the Western Indian Ocean – Aldabra, Comoros, Madagascar, and Mauritius. Gagnebina bakoliae Luckow & Du Puy – Madagascar Gagnebina calcicola (R.Vig.) Renvoize – western Madagascar Gagnebina commersoniana (Baill.) R.Vig. – Madagascar Gagnebina microcephala (Renvoize) Villiers – northeastern Madagascar and Aldabra Gagnebina pterocarpa (Lam.) Baill. – Comoros, northern and northwestern Madagascar, and Mauritius

Lepidophorum is a monotypic genus of flowering plants in the daisy family. Its only known species is Lepidophorum repandum, native to Spain and Portugal.