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Plantago | |
---|---|
Greater plantain ( Plantago major ) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Plantaginaceae |
Tribe: | Plantagineae |
Genus: | Plantago L. |
Subgenera | |
Plantago | |
Synonyms [1] | |
PsylliumMill. |
Plantago is a genus of about 200 species of flowering plants in the family Plantaginaceae, commonly called plantains or fleaworts. The common name plantain is shared with the unrelated cooking plantain. Most are herbaceous plants, though a few are subshrubs growing to 60 centimetres (24 inches) tall.
The leaves are sessile or have a poorly defined petiole. [2] : 632 They have three or five parallel veins that diverge in the wider part of the leaf. Leaves are broad or narrow, depending on the species. The inflorescences are borne on stalks typically 5–40 centimetres (2–15+1⁄2 inches) tall, and can be a short cone or a long spike, with numerous tiny wind-pollinated flowers.
The boundaries of the genus Plantago have been fairly stable, with the main question being whether to include Bougueria (one species from the Andes) and Littorella (2–3 species of aquatic plants). [3]
There are about 200 species of Plantago, including:
The genus name Plantago descends from the classical Latin name plantago, which in classical Latin meant some Plantago species, including Plantago major and Plantago media . In Latin the name was formed from the classical Latin word planta = "sole of the foot". The name was so formed in Latin because the leaves of these species grow out near flat at ground level. The suffix -ago in Latin means "a sort of". [4]
The species are found all over the world, including the Americas, Asia, Australia, New Zealand, Africa and Europe. Many species in the genus are cosmopolitan weeds. They are found in many different habitats, most commonly in wet areas like seepages or bogs. They can also be found in alpine and semi-alpine or coastal areas. The cosmopolitan weeds can be frequently seen at the side of roads.
Plantains are used as food plants by the larvae of some species of Lepidoptera (butterfly and moth).
Plantain has been consumed as human food since prehistory. For example, archaeological recovery along California's Central Coast has demonstrated use of this species as a food since the Millingstone Horizon. [5] The broad-leaved varieties are sometimes used as a leaf vegetable for salads, green sauce, and so on. [6] : 108–109 Tender young plantain leaves can be eaten raw and older leaves can be cooked. The seeds can be cooked like rice. [7]
Plantago species have been used since prehistoric times as herbal remedies. The herb is astringent, anti-toxic, antimicrobial, anti-inflammatory, anti-histamine, as well as demulcent, expectorant, styptic and diuretic. [8] Externally, a poultice of the leaves is useful for insect bites, poison-ivy rashes, minor sores, and boils. In folklore it is even claimed to be able to cure snakebite and was used by the Dakota Indian tribe of North America for this. [9] Internally, it is used for coughs and bronchitis, as a tea, [10] tincture, or syrup. [11] Tea made from the leaves may help cure diarrhea. [12]
Plantain seed husks expand and become mucilaginous when wet, especially those of P. psyllium, which is used in common over-the-counter bulk laxative and fiber supplement products such as Metamucil. P. psyllium seed is useful for constipation, irritable bowel syndrome, dietary fiber supplementation, and diverticular disease. Mucilage from desert indianwheat (P. ovata) is obtained by grinding off the husk. This mucilage, also known as psyllium, is commonly sold as Isabgol, a laxative which is used to control irregular bowel syndrome and constipation. [13] It has been used as an indigenous Ayurvedic and Unani medicine for a whole range of bowel problems. Psyllium supplements are typically used in powder form, along with adequate amounts of fluids. A dose of at least 7 grams daily taken with adequate amounts of fluid (water, juice) is used by some for management of elevated cholesterol. There are a number of psyllium products used for constipation. The usual dose is about 3.5 grams twice a day. Psyllium is also a component of several ready-to-eat cereals.
In Serbia, Romania, Bulgaria and Russia, leaves from Plantago major are used as a folk remedy to preventing infection on cuts and scratches because of its antiseptic properties. In Slovenia and other Central European regions, the leaves were traditionally used topically as a cure for blisters resulting from friction (such as caused by tight shoes etc.).
There may also be a use for plantains in the abatement of enteric methane from ruminants, [14] as the natural compounds present (e.g. condensed tannins; ~14 g/kg DM), affect the acetate-propionate ratio in the rumen, which is a primary mechanism by which methanogenesis is restricted. [15] Currently this is not a viable option in any significant scale due to agronomic difficulties.
As Old English Wegbrade the plantago is one of the nine plants invoked in the pagan Anglo-Saxon Nine Herbs Charm , recorded in the 10th century.
Psyllium, or ispaghula, is the common name used for several members of the plant genus Plantago whose seeds are used commercially for the production of mucilage. Psyllium is mainly used as a dietary fiber to relieve symptoms of both constipation and mild diarrhea, and occasionally as a food thickener. Allergy to psyllium is common in workers frequently exposed to the substance.
Plantaginaceae, the plantain family, is a large, diverse family of flowering plants in the order Lamiales that includes common flowers such as snapdragon and foxglove. It is unrelated to the banana-like fruit also called "plantain." In older classifications, Plantaginaceae was the only family of the order Plantaginales, but numerous phylogenetic studies, summarized by the Angiosperm Phylogeny Group, have demonstrated that this taxon should be included within Lamiales.
Alisma plantago-aquatica, also known as European water-plantain, common water-plantain or mad-dog weed, is a perennial flowering aquatic plant widespread across most of Europe and Asia, and apparently spread elsewhere in both the Old and New World.
Plantago lanceolata is a species of flowering plant in the plantain family Plantaginaceae. It is known by the common names ribwort plantain, narrowleaf plantain, English plantain, ribleaf, lamb's tongue, and buckhorn. It is a common weed on cultivated or disturbed land.
Plantago major, the broadleaf plantain, white man's footprint, waybread, or greater plantain, is a species of flowering plant in the plantain family Plantaginaceae. The plant is native to Eurasia.
Plantago media, known as the hoary plantain, is a species of flowering plant in the plantain family Plantaginaceae. It is native to central and western Europe, including Great Britain and introduced to parts of the north-east United States. Its generic name is derived from the Latin for sole; like other members of the genus Plantago, it should not be confused with the unrelated plantain, a starchy banana.
NVC community H7 is one of the heath communities in the British National Vegetation Classification system. It is one of two communities categorised as maritime heaths.
British NVC community MC10 is one of the maritime cliff communities in the British National Vegetation Classification system. It is one of five communities categorised as maritime sea-cliff grasslands.
Plantago maritima, the sea plantain, seaside plantain or goose tongue, is a species of flowering plant in the plantain family Plantaginaceae. It has a subcosmopolitan distribution in temperate and Arctic regions, native to most of Europe, northwest Africa, northern and central Asia, northern North America, and southern South America.
Plantago nubicola is a plant found in Peru, Bolivia, and Argentina.
Plantago coronopus, the buck's-horn plantain, is a herbaceous annual to perennial flowering plant in the family Plantaginaceae. Other common names in the US and Italy include minutina and erba stella.
Mucilage is a thick gluey substance produced by nearly all plants and some microorganisms. These microorganisms include protists which use it for their locomotion, with the direction of their movement always opposite to that of the secretion of mucilage. It is a polar glycoprotein and an exopolysaccharide. Mucilage in plants plays a role in the storage of water and food, seed germination, and thickening membranes. Cacti and flax seeds are especially rich sources of mucilage.
British NVC community OV23 is one of the open habitat communities in the British National Vegetation Classification system. It is one of six communities characteristic of gateways, tracksides and courtyards.
Plantago rugelii is an edible species of flowering plant in the plantain family, Plantaginaceae. It is native to North America, where it occurs in eastern Canada and the central and eastern United States. Its common names include American plantain, blackseed plantain, pale plantain, and Rugel's plantain. The species name rugelii honors Ferdinand Ignatius Xavier Rugel (1806-1879), a German-born botanist and pharmacist.
Plantago hookeriana, commonly called Hookers plantain, is a species of flowering plant in the plantain family (Plantaginaceae). It is native to Texas and Louisiana in the United States. It is typically found in disturbed sandy areas.
Plantago rhodosperma is a species of flowering plant in the plantain family known by the common names redseed plantain and redseed indianwheat. It is native to the Great Plains and Southwest of the United States.
Plantago brownii is a species of flowering plant in the family Plantaginaceae that is native to Tasmania, Australia and the subantarctic Auckland Islands of New Zealand. Robert Brown described the species in 1810, as P. carnosa R.Br. Plants of this species of plantain are annual or perennial with a rosette habit, fleshy toothed leaves, and short inflorescences.
Plantago indica, commonly known as branched plantain, sand plantain, or black psyllium, is a flowering plant in the plantain family Plantaginaceae, and is one of a few species in the Plantago genus under the common name psyllium. The plant is native to parts of Africa, Europe, Russia, and Asia, and has been naturalized in many other areas such as Australia and North America. The plant can be found mostly in dry inland areas, such as those that are sandy, and has also naturalized on roadsides and in meadows. The plant is not used broadly as a food source, but has been cultivated for its seeds which serve a medicinal use as a laxative.
Plantago virginica, common names hoary plantain and Virginia plantain, is a species of plant native to North America and introduced in Asia. It is listed as a special concern in Connecticut. The Kiowa use it to make garlands or wreaths for old men to wear around their heads during ceremonial dances as a symbol of health. It is commonly found within the continental United States in the majority of states along coastal areas and on roads, though has become an invasive species to eastern China after its introduction c. 1980. It is an annual plant, blooming around the month of May.
Plantago gunnii is endemic to Tasmania and is commonly referred to as bolster plantain or bolster plantago. The etymology of the genus Plantago comes from the Latin words planta and the suffix –ago, which is represented by the leaves pressed flat against the ground. The species name gunnii is in honour of Ronald Campbell Gunn of Launceston, who first discovered the species.
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