Jakob Friedrich Ehrhart

German biologist (1742-1795).

Jakob Friedrich Ehrhart (4 November 1742, Holderbank, Aargau – 26 June 1795) was a German botanist, a pupil of Carl Linnaeus at Uppsala University, and later director of the Botanical Garden of Hannover, where he produced several major botanical works between 1780 and 1793. Ehrhart was the first author to use the rank of subspecies in botanical literature, and he published many subspecific names between 1780 and 1789. Ehrhart issued several exsiccatae, the first one Phytophylacium Ehrhartianum, continens plantas, quas in locis earum natalibus collegit et exsiccavit Fridericus Ehrhart (1780-178

Abbreviations: Ehrh.
Occupations: scientific collector, pteridologist, pharmacist, mycologist, bryologist, botanist, botanical collector
Citizenships: Switzerland
Languages: Latin, German
Dates: 1742-11-04T00:00:00Z – 1795-06-26T00:00:00Z
Birth place: Holderbank
Direct attributions: 46 plants, 0 fungi
Authorship mentions: 93 plants, 17 fungi

46 plants attributed, 47 plants contributed to93 plants:

Prunus cerasifera (Cherry-plum) Ehrh. 1785
medicinal and fruit plant species in the rosaceae family
Prunus cerasifera is a species of plum known by the common names cherry plum and myrobalan plum. Native to Eurasia and naturalized elsewhere, P. cerasifera is believed to be one of the parents of the cultivated plum.
Betula pubescens (Downy Birch) Ehrh. 1791
plant species in the betulaceae family
Betula pubescens (syn. Betula alba), commonly known as downy birch and also as moor birch, white birch, European white birch or hairy birch, is a species of deciduous tree, native and abundant throughout northern Europe and northern Asia, growing further north than any other broadleaf tree. It is closely related to, and often confused with, the silver birch (B. pendula), but grows in wetter places with heavier soils and poorer drainage; smaller trees can also be confused with the dwarf birch (B. nana). Six varieties are recognised and it hybridises with the silver and dwarf birches. A number
Prunus serotina ( Black Cherry) Ehrh. 1784
plant species in the rosaceae family
Prunus serotina, commonly called black cherry, wild black cherry, rum cherry, or mountain black cherry, is a deciduous tree or shrub in the rose family Rosaceae. Despite its common names, it is not very closely related to commonly cultivated cherries. It is found in the Americas.
Mentha suaveolens (Apple Mint) Ehrh. 1792
perennial and medicinal plant species in the lamiaceae family
Mentha suaveolens, the apple mint, pineapple mint, woolly mint or round-leafed mint (synonyms M. rotundifolia, Mentha macrostachya, Mentha insularis), is a member of the mint family Lamiaceae. It is native to southern and western Europe including the Mediterranean region. It is a herbaceous, upright perennial plant that is most commonly grown as a culinary herb or for ground cover.
Equisetum telmateia (Great Horsetail) Ehrh. 1783
plant species in the equisetaceae family
Equisetum telmateia, the great horsetail, is a species of Equisetum (horsetail) native to Europe, western Asia and northwest Africa. It was formerly widely treated in a broader sense including a subspecies (subsp. braunii) in western North America, but this is now treated as a separate species, Equisetum braunii.
Fagus grandifolia (American Beech) Ehrh. 1787
plant species in the fagaceae family
Fagus grandifolia, the American beech or North American beech, is a species of tree growing to 16–35 meters (52–115 feet) tall. It is one of two beech species native to North America, the other occurring in Mexico. It flourished over most of the continent prior to the last ice age, but is now limited to the east. The tree is shade tolerant and found in forests in the final stage of succession. The nuts are eaten by animals and humans. The leaves and inner bark can be prepared as well.
Equisetum pratense (Shade Horsetail) Ehrh. 1784
perennial and medicinal plant species in the equisetaceae family
Equisetum pratense, commonly known as meadow horsetail, shade horsetail or shady horsetail, is a widespread horsetail (Equisetophyta) and it is a pteridophyte. Shade horsetail can be commonly found in forests with tall trees or very thick foliage that can provide shade and tends to grow closer and thicker around streams, ponds and rivers. The specific epithet pratense is Latin, meaning pasture or meadow dwelling.
Honckenya peploides (Sea-sandwort) (L.) Ehrh. 1783
plant species in the caryophyllaceae family
Honckenya peploides, the sea sandwort (UK) or seaside sandplant (Canada), is the only species in the genus Honckenya of the plant family Caryophyllaceae. Other common names include sea chickweed, sea pimpernal, sea-beach sandwort, and sea purslane. The scientific name is often spelled "Honkenya", and is named after the German botanist Gerhard August Honckeny (or Honkeny). This plant has a circumboreal distribution. The plant is a succulent perennial growing at the edge of the sea. It has small greenish white pentamerous flowers with 10 stamens in the male flowers borne in the leaf axils. The
Carex lasiocarpa (Slender Sedge) Ehrh. 1784
perennial plant species in the cyperaceae family
Carex lasiocarpa is a broadly distributed species of wetland sedge sometimes known as woollyfruit sedge or slender sedge. It is considered a species of Least Concern by the IUCN Red List due to its extensive range (much of North America, Europe, and Asia) with many stable populations.
Carex acutiformis (Lesser Pond Sedge) Ehrh. 1789
perennial plant species in the cyperaceae family
Carex acutiformis, the lesser pond-sedge, is a species of plant in the Carex, or sedge family.
Digitalis lanata (Grecian Foxglove) Ehrh. 1792
perennial and medicinal plant species in the plantaginaceae family
Digitalis lanata, vernacularly often called woolly foxglove or Grecian foxglove, is a species of foxglove, a flowering plant in the plantain family Plantaginaceae. It gets its name due to the woolly indumentum of the leaves. D. lanata, like other foxglove species, is toxic in all parts of the plant. Symptoms of digitalis poisoning include nausea, vomiting, severe headache, dilated pupils, problems with eyesight, and convulsions and cardiac arrhythmias at the worst level of toxicity. The plant is also harmful to other animals.
Silene dichotoma (Forked Catchfly) Ehrh. 1792
annual plant species in the caryophyllaceae family
Silene dichotoma is a species of flowering plant in the family Caryophyllaceae known by the common name forked catchfly. It is native to Eurasia and it is known in other parts of the temperate world, such as sections of North America, where it is a weed that grows in disturbed habitat. It is an annual herb growing up to 80 centimeters tall. The lance-shaped leaves are up to 8 centimeters long on the lower stem and are smaller higher up. Each flower is encapsulated in an inflated calyx of sepals lined with ten veins. It is open at the tip, revealing five white to red petals, each with two
Stellaria crassifolia (Fleshy Stitchwort) Ehrh. 1784
plant species in the caryophyllaceae family
Stellaria crassifolia, the fleshy starwort, is a species of flowering plant in the carnation family Caryophyllaceae, found in northern North America, Europe, and Asia. Its common Icelandish name is "Stjörnuarfi" (star-weed).
Silene chlorantha (Yellowgreen Catchfly) (Willd.) Ehrh. 1792
perennial plant species in the caryophyllaceae family
Silene chlorantha is a species of flowering plant belonging to the family Caryophyllaceae. Its native range is Europe to Central Asia.
Brassica elongata (Long-stalk Rape) Ehrh. 1792
annual and perennial plant species in the brassicaceae family
Brassica elongata, the elongated mustard or long-stalked rape, is a species of the mustard plant that is native to parts of Central Europe, Eastern Europe, the Balkan Peninsula, the Caucasus, Morocco and parts of Central Asia. Through plant invasion this species has become naturalized in many other parts of the world. Some of these naturalized regions include South Africa, North Western Europe, Australia and North America. Given the wide range of climate and ecological conditions of these regions, B. elongata has been able to disrupt the ecosystems of their native plant habitats and has been
Geranium divaricatum (Spreading Crane's-bill) Ehrh. 1792
annual and medicinal plant species in the geraniaceae family
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Berkheya (African Thistles) Ehrh. 1784
plant genus in the asteraceae family
Berkheya is a genus of flowering plants in the family Asteraceae. It is distributed in tropical Africa, especially in southern regions. Of about 75 species, 71 can be found in South Africa. Most species have yellow ray florets, a few have white, and B. purpurea has light purple or mauve florets. Berkheya purpurea is cultivated as an ornamental plant. Some Berkheya are known as weeds. Berkheya coddii is a well-known hyperaccumulator. Concentration of Ni as the leaves of this species may reach 7.6% DW Ni. The genus was named in honor of the Dutch scientist and artist Johannes le Francq van
Prunus × dasycarpa (Black Apricot) Ehrh. 1791
plant hybrid species in the rosaceae family
Prunus × dasycarpa, called purple apricot and black apricot (Chinese: zi xing), is a species of tree. It is in the genus Prunus in the rose family, Rosaceae. The species was named by Jakob Friedrich Ehrhart in 1791. The buds are reddish-orange, and the flower blossoms are white. It is likely a hybrid of P. armeniaca × P. cerasifera (i.e., an apricot–cherry plum cross). There is disagreement about whether this is a human-cultivated cross or a naturally occurring cross from Western Asia.
Moenchia (Upright Chickweed) Ehrh. 1783
plant genus in the caryophyllaceae family
Moenchia is a genus of plants in the family Caryophyllaceae with three species native to the Mediterranean region of southern Europe and naturalised in southern Africa and parts of North America and Australia. They are herbs, with an annual life span. They have slender roots and thin stems that are upright or ascending. Inflorescences are one- to three-flowered and terminally end the stems. The flowers are in spreading cymes or solitary, with bracts paired that are leaf like. Named after the 18th century German botanist Conrad Moench. A common name for the plants in this genus is upright
Erysimum odoratum (Smelly Wallflower) Ehrh. 1792
plant species in the brassicaceae family
Erysimum odoratum is a species of flowering plant belonging to the family Brassicaceae. Its native range is Central Europe to Ukraine.
Erysimum diffusum (Diffuse Wallflower) Ehrh. 1792
medicinal plant species in the brassicaceae family
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Honckenya Ehrh. 1783
plant genus in the caryophyllaceae family
Honckenya peploides, the sea sandwort (UK) or seaside sandplant (Canada), is the only species in the genus Honckenya of the plant family Caryophyllaceae. Other common names include sea chickweed, sea pimpernal, sea-beach sandwort, and sea purslane. The scientific name is often spelled "Honkenya", and is named after the German botanist Gerhard August Honckeny (or Honkeny). This plant has a circumboreal distribution. The plant is a succulent perennial growing at the edge of the sea. It has small greenish white pentamerous flowers with 10 stamens in the male flowers borne in the leaf axils. The
Trifolium diffusum (Diffuse Clover) Ehrh. 1792
annual plant species in the fabaceae family
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Circaea × intermedia (Upland Enchanter's-nightshade) Ehrh. 1789
perennial plant hybrid species in the onagraceae family
Circaea × intermedia is a hybrid of flowering plants in the evening primrose family Onagraceae. The parents of the hybrid are Circaea alpina and Circaea lutetiana.
Achillea ochroleuca Ehrh. 1792
plant species in the asteraceae family
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Carex × microstachya Ehrh. 1784
perennial plant hybrid species in the cyperaceae family
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Carduus hamulosus Ehrh. 1792
plant species in the asteraceae family
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Geum × intermedium (Intermediate Avens) Ehrh. 1791
perennial plant hybrid species in the rosaceae family
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Berkheya fruticosa (Grey African Thistle) (L.) Ehrh. 1788
plant species in the asteraceae family
Berkheya fruticosa (Afrikaans: vaaldissel, "pale pole") is a plant native to the Succulent Karoo of South Africa's Cape Provinces. It is a perennial meso-chamaephyte that grows 15–25 cm high. It has prickly leaves and grows dark yellow aster flowers.
Salix × ambigua (Puzzle Willow) Ehrh. 1791
plant hybrid species in the salicaceae family
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