Lemon balm | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Lamiaceae |
Genus: | Melissa |
Species: | M. officinalis |
Binomial name | |
Melissa officinalis | |
Lemon balm (Melissa officinalis) [note 1] is a perennial herbaceous plant in the mint family and native to south-central Europe, the Mediterranean Basin, Iran, and Central Asia, but now naturalised elsewhere.
It grows to a maximum height of 1 m (3 ft 3 in). The leaves have a mild lemon scent. During summer, small white flowers full of nectar appear. It is not to be confused with bee balm (genus Monarda ), although the white flowers attract bees, hence the genus Melissa (Greek for "honey bee").
The leaves are used as an herb, in teas and also as a flavouring. The plant is used to attract bees for honey production. It is grown as an ornamental plant and for its oil (to use in perfumery). Lemon balm has been cultivated at least since the 16th century.
Lemon balm (Melissa officinalis) is a perennial herbaceous plant in the mint family Lamiaceae, [2] and native to south-central Europe, the Mediterranean Basin, Iran, and Central Asia, but now naturalized in the Americas and elsewhere. [6] The second name, officinalis (Latin, 'of the shop'), originates from the use of the herb by apothecaries, who sold herbal remedies directly to their customers. [7]
Lemon balm plants grow bushy and upright to a maximum height of 100 cm (39 in). The heart-shaped leaves are 2–8 centimetres (0.79–3.15 in) long, and have a rough, veined surface. They are soft and hairy with scalloped edges, and have a mild lemon scent. During summer, small white or pale pink flowers appear. The plants live for ten years; the crop plant is replaced after five years to allow the ground to rejuvenate. [8]
The use of lemon balm can be dated to over 2000 years ago through the Greeks and the Romans. It is mentioned by the Greek polymath Theophrastus in his Historia Plantarum , written in c.300 BC, [9] as "bee-leaf" (μελισσόφυλλον). [10] Lemon balm was formally introduced into Europe in the 7th century, from which its use and domestication spread. [9] Its use in the Middle Ages is noted by herbalists, writers, philosophers, and scientists.
Lemon balm was a favourite plant of the Tudors, who scattered the leaves across their floors. [11] It was in the herbal garden of the English botanist John Gerard in the 1590s, [12] [ page needed ] who considered it especially good for feeding and attracting honeybees. [13] Especially cultivated for honey production, according to the authors Janet Dampney and Elizabeth Pomeroy, "bees were thought never to leave a garden in which it was grown". [11] It was introduced to North America by the first colonists from Europe; it was cultivated in the Gardens of Monticello, designed by the American statesman Thomas Jefferson. [14]
The English botanist Nicholas Culpeper considered lemon balm to be ruled by the planet Jupiter in Cancer, and suggested it to be used for "weak stomachs", to cause the heart to become "merry", to help digestion, to open "obstructions of the brain", and to expel "melancholy vapors" from the heart and arteries. [15]
In traditional Austrian medicine, M. officinalis leaves have been prescribed as a herbal tea, or as an external application in the form of an essential oil. [16] [ page needed ]
Lemon balm is the main ingredient of carmelite water, which is sold in German pharmacies. [17]
The plant is grown and sold as an ornamental plant, and for attracting bees. The essential oil is used as a perfume ingredient. [18] It is used in toothpaste. [19]
Lemon balm is used as a flavouring [18] in ice cream and herbal teas, often in combination with other herbs such as spearmint. The leaves are not dried when used for tea. It is a common addition to peppermint tea, mostly because of its complementing flavor.[ citation needed ] Lemon balm is also used with fruit dishes or candies. It can be used in fish dishes and is the main ingredient in lemon balm pesto. [20] : 15–16 Its flavour comes from geraniol (3–40%), neral (3–35%), geranial (4–85%) (both isomers of citral), (E)-caryophyllene (0–14%), and citronellal (1–44%). [21] It is also one of the ingredients in Spreewald gherkins. [22]
Melissa officinalis is native to Europe, central Asia and Iran, but is now naturalized around the world. [4] [20] It grows easily from seed, preferring rich, moist soil. [23]
Lemon balm seeds require light and a minimum temperature of 20 °C (68 °F) to germinate. The plant grows in clumps and spreads vegetatively (a new plant can grow from a fragment of the parent plant), as well as by seed. In mild temperate zones, the plant stems die off at the start of the winter, but shoot up again in spring. Lemon balm grows vigorously. [24]
As of 1992 [update] , Hungary, Egypt, and Italy are the major producing countries of lemon balm. [5] The leaves are harvested by hand in June and August in the northern hemisphere, on a day when the weather is dry, to prevent the crop from turning black if damp. [8]
The cultivars of M. officinalis include:
Ireland is a major producer of lemon balm essential oil, which has a pale yellow colour and a lemon scent. [5] The essential oil is commonly co-distilled with lemon oil, citronella oil or other essential oils. [26] Yields are low; 0.014% for fresh leaves and 0.112% for dried leaves. [5]
Lemon balm contains eugenol, tannins, and terpenes. [27]
Component | minimum % | maximum % |
---|---|---|
Methyl Heptenone | 2.2 | 8.6 |
Citronellal | 1.0 | 8.4 |
Linalool | 0.5 | 2.7 |
Neral | 19.6 | 36.1 |
Geranial | 25.3 | 47.5 |
Geranyl acetate | 1.2 | 6.2 |
Carophyllene | 1.9 | 9.7 |
Carophyllene oxide | 0.5 | 9.0 |
Lavandula is a genus of 47 known species of perennial flowering plants in the mints family, Lamiaceae. It is native to the Old World, primarily found across the drier, warmer regions of mainland Eurasia, with an affinity for maritime breezes.
Parsley, or garden parsley is a species of flowering plant in the family Apiaceae that is native to Greece, Morocco and the former Yugoslavia. It has been introduced and naturalized in Europe and elsewhere in the world with suitable climates, and is widely cultivated as an herb and a vegetable.
Salvia rosmarinus, commonly known as rosemary, is a shrub with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers. It is native to the Mediterranean region, as well as Portugal and Spain. Until 2017, it was known by the scientific name Rosmarinus officinalis, now a synonym.
Thyme is a culinary herb consisting of the dried aerial parts of some members of the genus Thymus of flowering plants in the mint family Lamiaceae. Thymes are native to Eurasia and north Africa. Thymes have culinary, medicinal, and ornamental uses. The species most commonly cultivated and used for culinary purposes is Thymus vulgaris, native to Southeast Europe.
Patchouli is a species of flowering plant in the family Lamiaceae, commonly called the mint or deadnettle family. The plant grows as a bushy perennial herb, with erect stems reaching up to 75 centimetres (30 in) in height and bearing small, pale, pink-white flowers.
Salvia officinalis, the common sage or sage, is a perennial, evergreen subshrub, with woody stems, grayish leaves, and blue to purplish flowers. It is a member of the mint family Lamiaceae and native to the Mediterranean region, though it has been naturalized in many places throughout the world. It has a long history of medicinal and culinary use, and in modern times it has been used as an ornamental garden plant. The common name "sage" is also used for closely related species and cultivars.
Salvia sclarea, the clary or clary sage, is a biennial or short-lived herbaceous perennial in the genus Salvia. It is native to the northern Mediterranean Basin, along with some areas in north Africa and Central Asia. The plant has a lengthy history as an herb and is currently grown for its essential oil.
Borage, also known as starflower, is an annual herb in the flowering plant family Boraginaceae native to the Mediterranean region. Although the plant contains small amounts of pyrrolizidine alkaloids, some parts are edible and its seeds provide oil.
Aloysia citrodora, lemon verbena, is a species of flowering plant in the verbena family Verbenaceae, native to South America. Other common names include lemon beebrush. It was brought to Europe by the Spanish and the Portuguese in the 17th century and cultivated for its oil.
Monarda is a genus of flowering plants in the mint family, Lamiaceae. The genus is endemic to North America. Common names include bergamot, bee balm, horsemint, and oswego tea, the first being inspired by the fragrance of the leaves, which is reminiscent of bergamot orange. The genus was named for the Spanish botanist Nicolás Monardes, who wrote a book in 1574 describing plants of the New World.
Monarda citriodora is a species of flowering plant in the mint family, Lamiaceae, that is native to the southern United States and northern Mexico. Common names include lemon beebalm, lemon mint and purple horsemint. When crushed, the leaves emit an odor reminiscent of lemons. This odor is sometimes described as more resembling oregano, especially late in the season. Its purple flowers are highly attractive to butterflies, bees and hummingbirds.
Melissa is a genus of perennial herbs in the family Lamiaceae. Its species are native to Europe and Asia but cultivated and naturalized in many other places. The name Melissa is derived from the Greek word μέλισσα (mélissa) meaning "honeybee", owing to the abundance of nectar in the flowers. The stems are square, like most other plants in the mint family. The leaves are borne in opposite pairs on the stems, and are usually ovate or heart-shaped and emit a lemony scent when bruised. Axillary spikes of white or yellowish flowers appear in the summer.
Infusion is the process of extracting chemical compounds or flavors from plant material in a solvent such as water, oil or alcohol, by allowing the material to remain suspended in the solvent over time. An infusion is also the name for the resultant liquid. The process of infusion is distinct from both decoction—a method of extraction involving boiling the plant material—and percolation, in which water is passed through the material.
Pelargonium graveolens is a Pelargonium species native to the Cape Provinces and the Northern Provinces of South Africa, Zimbabwe and Mozambique. Common names include rose geranium, sweet scented geranium, old-fashioned rose geranium, and rose-scent geranium.
Calendula officinalis, the pot marigold, common marigold, ruddles, Mary's gold or Scotch marigold, is a flowering plant in the daisy family, Asteraceae. It is probably native to southern Europe, though its long history of cultivation makes its precise origin unknown. It is also widely naturalised farther north in Europe and elsewhere in warm temperate regions of the world.
Herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal purposes, or for fragrances. Culinary use typically distinguishes herbs from spices. Herbs generally refers to the leafy green or flowering parts of a plant, while spices are usually dried and produced from other parts of the plant, including seeds, bark, roots and fruits.
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The following outline is provided as an overview of and topical guide to herbs and spices: