''Althaea'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of ...

perennial plant In horticulture, the term perennial (''wikt:per-#Prefix, per-'' + ''wikt:-ennial#Suffix, -ennial'', "through the year") is used to differentiate a plant from shorter-lived annual plant, annuals and biennial plant, biennials. It has thus been d ...

s native to Europe, North Africa and western Asia. It includes ''

Althaea officinalis ''Althaea officinalis'', the marsh mallow or marshmallow, is a species of flowering plant indigenous to Europe, Western Asia and North Africa, which is used in herbalism and as an ornamental plant. Description This herbaceous perennial plant, ...

'', also known as the marshmallow plant, whence the fluffy confection got its name. They are found on the banks of

rivers A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it ru ...

and in

salt marsh A salt marsh, saltmarsh or salting, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. I ...

es, preferring moist, sandy

soil Soil, also commonly referred to as earth, is a mixture of organic matter, minerals, gases, water, and organisms that together support the life of plants and soil organisms. Some scientific definitions distinguish dirt from ''soil'' by re ...

s. The stems grow to 1–2 m tall, and

flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...

in mid summer. The

leaves A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, ...

are palmately lobed with 3–7 lobes. ''Althaea'' species are used as food plants by the

larva A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...

e of some

Lepidoptera Lepidoptera ( ) or lepidopterans is an order (biology), order of winged insects which includes butterflies and moths. About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organ ...

species including '' Bucculatrix quadrigemina''.

Species

The genus formerly included a number of additional species now treated in the genus '' Alcea'' (hollyhocks). , ''

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

'' accepts the following species: *'' Althaea armeniaca'' Ten. *'' Althaea bertramii'' Post & Beauverd *'' Althaea cannabina'' L. *'' Althaea damascena'' Mouterde *'' Althaea hiri'' Parsa *'' Althaea octaviae'' Evenari *''

'' L. *'' Althaea oppenheimii'' Ulbr. *'' Althaea villosa'' Blatt.

Chemical constituents

The root contains

starch Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diet ...

(37%),

mucilage 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 ...

(11%),

pectin Pectin ( ': "congealed" and "curdled") is a heteropolysaccharide, a structural polymer contained in the primary lamella, in the middle lamella, and in the cell walls of terrestrial plants. The principal chemical component of pectin is galact ...

(11%),

flavonoids Flavonoids (or bioflavonoids; from the Latin word ''flavus'', meaning yellow, their color in nature) are a class of polyphenolic secondary metabolites found in plants, and thus commonly consumed in the diets of humans. Chemically, flavonoids ...

, phenolic acids,

sucrose Sucrose, a disaccharide, is a sugar composed of glucose and fructose subunits. It is produced naturally in plants and is the main constituent of white sugar. It has the molecular formula . For human consumption, sucrose is extracted and refined ...

, and

asparagine Asparagine (symbol Asn or N) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH form under biological conditions), an α-carboxylic acid group (which is in the depro ...

Uses

The traditional medicinal uses of the plant are reflected in the name of the genus, which comes from the

Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...

''althainein'', meaning "to heal". The flowers and young leaves can be eaten, and are often added to salads or are boiled and fried. The roots and stem also secrete

, which is used to soften the skin, and is used in cosmetic treatments. The Roman poet

Horace Quintus Horatius Flaccus (; 8 December 65 BC – 27 November 8 BC), Suetonius, Life of Horace commonly known in the English-speaking world as Horace (), was the leading Roman lyric poet during the time of Augustus (also known as Octavian). Th ...

refers to his own diet in his Odes, which he describes as very simple: "As for me,

olives The olive, botanical name ''Olea europaea'' ("European olive"), is a species of Subtropics, subtropical evergreen tree in the Family (biology), family Oleaceae. Originating in Anatolia, Asia Minor, it is abundant throughout the Mediterranean ...

, endives, and smooth mallows provide sustenance." The root has been used since

Egyptian ''Egyptian'' describes something of, from, or related to Egypt. Egyptian or Egyptians may refer to: Nations and ethnic groups * Egyptians, a national group in North Africa ** Egyptian culture, a complex and stable culture with thousands of year ...

antiquity in a honey-sweetened confection useful in the treatment of sore throat. The root's emulsifying property is used for cleaning

Persian carpet A Persian carpet ( ), Persian rug ( ),Savory, R., ''Carpets'',(Encyclopaedia Iranica); accessed 30 January 2007. or Iranian carpet is a heavy textile made for a wide variety of utilitarian and symbolic purposes and produced in Iran (histo ...

s in the

Middle East The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq. The term came into widespread usage by the United Kingdom and western Eur ...

. It is regarded as the best method to preserve the vibrancy of vegetable dyes used in coloring the carpet's wool.

Gallery

File:Althaea officinalis habitus.jpeg, ''A. officinalis'' File:Althaea officinalis0.jpg, ''A. officinalis''

Notes

References

*''Medicinal Plants of the World: Chemical Constituents, Traditional and Modern Medicinal Uses'' by Ivan A. Ross.

External links

Flora Europaea: ''Althaea''
{{DEFAULTSORT:Althaea (Genus) Malveae Malvaceae genera