Melilotus

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Melilotus
Bombus lapidarius - Melilotus officinalis - Tallinn.jpg
Melilotus officinalis
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Trifolieae
Genus: Melilotus
Mill. [1]
Type species
Melilotus officinalis
(L.) Lam.
Species

See text

Synonyms

BrachylobusDulac (1867) [2]
MelilothusHomem. (1819) [2]
MelilotiMedik. (1787) [2]
MeliotusSteud. (1841) [2]
SertulaO. Ktze. (1891) [2]

Contents

Melilotus albus Apis mellifera - Melilotus albus - Keila.jpg
Melilotus albus

Melilotus, known as melilot, sweet clover, and kumoniga (from the Cumans), [3] is a genus in the family Fabaceae (the same family that also includes the Trifolium clovers). Members are known as common grassland plants and as weeds of cultivated ground. Originally from Europe and Asia, it is now found worldwide.

This legume is commonly named for its sweet smell, which is due to the presence of coumarin in its tissues. Coumarin, though responsible for the sweet smell of hay and newly mowed grass, has a bitter taste, and, as such, possibly acts as a means for the plant to discourage consumption by animals. [4] Fungi (including Penicillium, Aspergillus, Fusarium, and Mucor [5] ) can convert coumarin into dicoumarol, a toxic anticoagulant. Consequently, dicoumarol may be found in decaying sweet-clover, and was the cause of the so-called sweet-clover disease, recognized in cattle in the 1920s. [6] A few varieties of sweet clover have been developed with low coumarin content and are safer for forage and silage. [7]

The name sweet clover varies orthographically (sweet-clover, sweetclover).

Uses

Melilotus species are eaten by the larvae of some Lepidoptera species, such as those of the genus Coleophora , including C. frischella and C. trifolii .

Melilotus, often used as a green manure, can be turned into the soil to increase its nitrogen and organic matter content. It is especially valuable in heavy soils because of its deep rooting. However, it may fail if the soil is too acidic. It should be turned into the soil when 8 to 10 inches tall. Unscarified seed is best sown in spring when the ground is not too dry; scarified seed is better sown in late fall or even in the snow, so it will germinate before competing weeds the following spring. [8]

Melilotus siculus (messina) is notable for its high combined tolerance to salinity and water logging. As of 2019, the "Neptune" variety has the highest tolerance and persistence under salinity among all pasture legumes, according to the Australian Department of Primary Industries and Regional Development. The salt-tolerant symbioant Ensifer medicae SRDI554 is recommended. [9]

Others

Blue melilot (Trigonella caerulea) is not a member of the genus, despite the name.

Species

The genus Melilotus currently has nineteen recognized species: [10]

Related Research Articles

<span class="mw-page-title-main">Clover</span> Genus of legumes

Clover, also called trefoil, are plants of the genus Trifolium, consisting of about 300 species of flowering plants in the legume family Fabaceae originating in Europe. The genus has a cosmopolitan distribution with highest diversity in the temperate Northern Hemisphere, but many species also occur in South America and Africa, including at high altitudes on mountains in the tropics. They are small annual, biennial, or short-lived perennial herbaceous plants, typically growing up to 30 centimetres (12 in) tall. The leaves are trifoliate, with stipules adnate to the leaf-stalk, and heads or dense spikes of small red, purple, white, or yellow flowers; the small, few-seeded pods are enclosed in the calyx. Other closely related genera often called clovers include Melilotus and Medicago.

<i>Onobrychis viciifolia</i> Species of flowering plant in the bean family Fabaceae

Onobrychis viciifolia, also known as O. sativa or common sainfoin has been an important forage legume in temperate regions until the 1950s. During the Green Revolution it was replaced by high yielding alfalfa and clover species. Due to its anthelmintic properties the common sainfoin is a natural alternative to drugs to control nematode parasitism in the guts of small ruminants. This is the main reason why O. viciifolia came back to the scientific agenda during the last years.

<span class="mw-page-title-main">Rotational grazing</span> System of grazing moving animals between paddocks around the year

In agriculture, rotational grazing, as opposed to continuous grazing, describes many systems of pasturing, whereby livestock are moved to portions of the pasture, called paddocks, while the other portions rest. Each paddock must provide all the needs of the livestock, such as food, water and sometimes shade and shelter. The approach often produces lower outputs than more intensive animal farming operations, but requires lower inputs, and therefore sometimes produces higher net farm income per animal.

<span class="mw-page-title-main">Forage</span> Plant material eaten by grazing livestock

Forage is a plant material eaten by grazing livestock. Historically, the term forage has meant only plants eaten by the animals directly as pasture, crop residue, or immature cereal crops, but it is also used more loosely to include similar plants cut for fodder and carried to the animals, especially as hay or silage.

<i>Trifolium repens</i> Flowering plant, bean family Fabaceae

Trifolium repens, the white clover, is a herbaceous perennial plant in the bean family Fabaceae. It is native to Europe, including the British Isles, and central Asia and is one of the most widely cultivated types of clover. It has been widely introduced worldwide as a forage crop, and is now also common in most grassy areas of North America, Australia and New Zealand. The species includes varieties often classed as small, intermediate and large, according to height, which reflects petiole length. The term 'white clover' is applied to the species in general, 'Dutch clover' is often applied to intermediate varieties, and 'ladino clover' is applied to large varieties.

<span class="mw-page-title-main">Coumarin</span> Aromatic chemical compound

Coumarin or 2H-chromen-2-one is an aromatic organic chemical compound with formula C9H6O2. Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by an unsaturated lactone ring −(CH)=(CH)−(C=O)−O−, forming a second six-membered heterocycle that shares two carbons with the benzene ring. It belongs to the benzopyrone chemical class and considered as a lactone.

<i>Ononis</i> Genus of legumes

Ononis is a large genus of perennial herbs and shrubs from the legume family Fabaceae. The members of this genus are often called restharrows as some species grow as weeds on arable lands whose tough stems would stop the harrow. They are natively distributed in Europe.

<i>Vigna aconitifolia</i> Species of flowering plant

Vigna aconitifolia is a drought-resistant legume, commonly grown in arid and semi-arid regions of India. It is commonly called mat bean, moth bean, matki or dew bean. The pods, sprouts and protein-rich seeds of this crop are commonly consumed in India. Moth bean can be grown on many soil types, and can also act as a pasture legume.

<span class="mw-page-title-main">Living mulch</span> Cover crop grown with a main crop as mulch

In agriculture, a living mulch is a cover crop interplanted or undersown with a main crop, and intended to serve the purposes of a mulch, such as weed suppression and regulation of soil temperature. Living mulches grow for a long time with the main crops, whereas cover crops are incorporated into the soil or killed with herbicides.

<i>Melilotus officinalis</i> Species of flowering plant in the bean family Fabaceae

Melilotus officinalis, known as sweet yellow clover, yellow melilot, ribbed melilot and common melilot, is a species of legume native to Eurasia and introduced in North America, Africa, and Australia.

<i>Melilotus albus</i> Species of flowering plant in the bean family Fabaceae

Melilotus albus, known as honey clover, white melilot (UK), Bokhara clover (Australia), white sweetclover (US), and sweet clover, is a nitrogen-fixing legume in the family Fabaceae. Melilotus albus is considered a valuable honey plant and source of nectar and is often grown for forage. Its characteristic sweet odor, intensified by drying, is derived from coumarin.

<i>Medicago lupulina</i> Species of flowering plant in the bean family Fabaceae

Medicago lupulina, commonly known as black medick, nonesuch, or hop clover, is a plant of dry grassland belonging to the legume or clover family. Plants of the genus Medicago, or bur clovers, are closely related to the true clovers (Trifolium) and sweet clover (Melilotus). Like the true clovers, black medick has three leaflets and a small, yellow flower closely resembling those of lesser trefoil. Black medick belongs to the same genus as alfalfa.

<i>Macroptilium atropurpureum</i> Species of legume

Macroptilium atropurpureum, commonly referred to as purple bush-bean, or siratro is a perennial legume recognized by its climbing, dense, green vines and deep purple flowers. The plant is indigenous to the tropical and subtropical regions of North, Central, and South America, as far north as Texas in the USA and as far south as Peru and Brazil. It has been introduced for use as a food for stock to many tropical regions around the world. It has become an invasive pest plant in a number of areas, including the north-eastern coast of Australia. Rich in protein, M. atropurpureum is commonly used for cattle pastures intercropped with grass, used in hay, or as a ground cover to prevent soil erosion and to improve soil quality.

<i>Melilotus indicus</i> Species of flowering plant in the bean family Fabaceae

Melilotus indicus, sometimes incorrectly written Melilotus indica, is a yellow-flowered herb native to northern Africa, Europe and Asia, but naturalized throughout the rest of the world.

<i>Stylosanthes</i> Genus of legumes

Stylosanthes is a genus of flowering plants in the legume family Fabaceae and contains numerous highly important pasture and forage species. It was recently assigned to the informal monophyletic Pterocarpus clade of the Dalbergieae. The common name pencilflower is sometimes used for plants in this genus.

<i>Alysicarpus vaginalis</i> Species of flowering plant in the legume family

Alysicarpus vaginalis is a species of flowering plant in the legume family, Fabaceae. It is native to parts of Africa and Asia, and it has been introduced to other continents, such as Australia and the Americas. It is cultivated as a fodder for livestock, for erosion control, and as a green manure. Common names include alyce clover, buffalo clover, buffalo-bur, one-leaf clover, and white moneywort.

Brachiaria ruziziensis or Congo grass is a forage crop that is grown throughout the humid tropics. With fast growth at the beginning of the wet season due to strong seedling vigour, ease of establishment, good seed production and yield and the ability to suppress weeds it has the ability to become developed into the most important forage crop planted in the tropics. With the aid of genomic tools to research the genotype and gain more information there is the ability to increase breeding programs which are currently rather limited.

Melilotus wolgicus, the Volga sweet-clover or Russian melilot, is native to Russia and Kazakhstan, where it is common in the lower Volga and Don valleys. The species is also naturalized in Manitoba and Saskatchewan, where the climate is similar to that of its native range. The plant has been discussed as a potential forage crop, as it is tolerant to cold and to drought, and reportedly more productive than M. albus.

<i>Neustanthus</i> Species of legume

Neustanthus is a monotypic genus of flowering plants belonging to the pea family Fabaceae and its tribe Phaseoleae. The only species is Neustanthus phaseoloides, called tropical kudzu. This species is a forage crop and cover crop used in the tropics. It is known as puero in Australia and tropical kudzu in most tropical regions.

Ensifer medicae is a species of gram-negative, nitrogen-fixing, rod-shaped bacteria. They can be free-living or symbionts of leguminous plants in root nodules. E.medicae was first isolated from root nodules on plants in the genus Medicago. Some strains of E.medicae, like WSM419, are aerobic. They are chemoorganotrophic mesophiles that prefer temperatures around 28 °C. In addition to their primary genome, these organisms also have three known plasmids, sized 1,570,951 bp, 1,245,408 bp and 219,313 bp.

References

  1. "Melilotus Mill. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2020-06-28.
  2. 1 2 3 4 5 Woodgate, Katherine; Maxted, Nigel; Bennett, Sarita Jane (1996). Bennett, Sarita Jane; Cocks, Philip Stanley (eds.). Genetic resources of Mediterranean pasture and forage legumes. Current Plant Science and Biotechnology in Agriculture. Vol. 33. Norwell, MA: Kluwer Academic Publishers. p. 203. ISBN   978-0-7923-5522-9.
  3. Bulgarian Folk Customs, Mercia MacDermott, pg 27
  4. "Phytochemicals.info:Coumarin" . Retrieved 26 November 2011.
  5. Edwards WC, Burrows GE, Tyr RJ: 1984, Toxic plants of Oklahoma:clovers. Okla Vet Med Assoc 36:30-32.
  6. Behzad Yamini; Robert H. Poppenga; W. Emmett Braselton Jr.; Lawrence J. Judge (1995). "Dicoumarol (moldy sweet clover) toxicosis in a group of Holstein calves". J Vet Diagn Invest. 7 (3): 420–422. doi: 10.1177/104063879500700328 . PMID   7578469.
  7. Christina Curell (July 2, 2013). "Sweet clovers: What is the difference between yellow sweet clover and white sweet clover?". Michigan State University . Retrieved 17 May 2017.
  8. Five Acres and Independence by M.G. Kains. 1973.
  9. "Neptune messina – a new pasture legume for saline soils prone to waterlogging". www.agric.wa.gov.au.
  10. "Species Nomenclature in GRIN". Archived from the original on 14 October 2008. Retrieved 4 August 2010.