Marcus Koch

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Vinogradovia is a genus of flowering plants belonging to the family Apiaceae. Its native range is Turkey. Species: Vinogradovia conferta (Hub.-Mor. & Lamond) Bani, D.A.German & M.A.Koch

Tomostima reptans (synonym Draba reptans), common names Carolina draba, Carolina whitlow-grass, Creeping whitlow-grass, and Whitlow-grass, is an annual plant in the family Brassicaceae that is native to temperate North America. It is native to most of the contiguous United States, except for Florida, Mississippi, Kentucky, Virginia, Maryland, Delaware, and northern New England; to Ontario, Manitoba, Saskatchewan, Alberta, and British Columbia in Canada; and to northwestern Mexico.

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Scapiarabis is a genus of flowering plants in the family Brassicaceae. It includes four species native to Central Asia, Xinjiang, the western Himalayas, Afghanistan, and Pakistan.

Noccaea fendleri subsp. californica is a rare subspecies of flowering plant in the family Brassicaceae known by the common name Kneeland Prairie penny-cress. It is endemic to California, where it is known from only one stretch of grassland in Humboldt County. It is threatened by development. It is a federally listed endangered species of the United States. The taxonomy of this species is uncertain. Authors call it Thlaspi californicum, Thlaspi montanum var. californicum, Noccaea californica, and Noccaea fendleri ssp. californica, and there are other synonyms. This plant is a perennial herb

Zahora ait-atta is a species of flowering plant belonging to the family Brassicaceae. It is the sole species in genus Zahora. It is endemic to Morocco.

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Tomostima cuneifolia (synonym Draba cuneifolia) is a species of flowering plant in the family Brassicaceae known as the wedgeleaf draba or wedgeleaf whitlow-grass. This annual plant is native to the southern United States and northern Mexico where it grows in open, rocky fields and other disturbed areas. The plant forms a basal cluster of leaves, which are thick, widely toothed, and coated in stiff hairs. It bolts one or more erect stems which may approach 40 centimeters in maximum height. Each hairy stem bears an inflorescence of up to 75 small white flowers that continue at intervals down

Sinoarabis is a genus of flowering plants in the family Brassicaceae. It includes a single species, Sinoarabis setosifolia, a perennial endemic to Tibet.

Pseudodraba is a genus of flowering plants in the family Brassicaceae. It includes a single species, Pseudodraba hystrix, a subshrub native to Afghanistan and western Pakistan. The species was first described as Draba hystrix by Joseph Dalton Hooker and Thomas Thomson in 1861. In 2011 Ihsan Ali Al-Shehbaz, Dmitry A. German, and Marcus A. Koch placed the species in the new monotypic genus Pseudodraba as Pseudodraba hystrix.

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Hurkaea is a genus of flowering plants in the family Brassicaceae. It includes two species endemic to Morocco. Hurkaea conringioides (Ball) Al-Shehbaz, M.Koch, R.Karl & D.A.German Hurkaea josiae (Jahand. & Maire) Al-Shehbaz, M.Koch, R.Karl & D.A.German

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Zahora ait-atta is a species of flowering plant belonging to the family Brassicaceae. It is the sole species in genus Zahora. It is endemic to Morocco.

Sinoarabis is a genus of flowering plants in the family Brassicaceae. It includes a single species, Sinoarabis setosifolia, a perennial endemic to Tibet.

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Pseudodraba is a genus of flowering plants in the family Brassicaceae. It includes a single species, Pseudodraba hystrix, a subshrub native to Afghanistan and western Pakistan. The species was first described as Draba hystrix by Joseph Dalton Hooker and Thomas Thomson in 1861. In 2011 Ihsan Ali Al-Shehbaz, Dmitry A. German, and Marcus A. Koch placed the species in the new monotypic genus Pseudodraba as Pseudodraba hystrix.

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Acirostrum is a monotypic genus of flowering plants that consists solely of the species Acirostrum alaschanicum. The plant is found in Inner Mongolia, Qinghai, and the central regions of China.

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