''Helichrysum stoechas'', known as Mediterranean strawflower, curry plant, common shrubby everlasting, everlasting flower, or eternal flower, is an
annual
Annual may refer to:
*Annual publication, periodical publications appearing regularly once per year
**Yearbook
**Literary annual
*Annual plant
*Annual report
*Annual giving
*Annual, Morocco, a settlement in northeastern Morocco
*Annuals (band), a ...
or
perennial
In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...
shrub (depending on locale) that prefers dry, rocky and sandy areas. It can grow up to 120 centimeters (47 inches) in height, and spreads over 1 square meter (3 feet 3 inches) in area. It is a
hermaphrodite
A hermaphrodite () is a sexually reproducing organism that produces both male and female gametes. Animal species in which individuals are either male or female are gonochoric, which is the opposite of hermaphroditic.
The individuals of many ...
that has grayish green leaves and produces small globular yellow flowers sometimes in the Spring or in July and August that are pollinated by insects.
Uses
Extracts of ''Helichrysum stoechas'' have been used in traditional medicine to treat colds, as a nerve tonic, to reduce inflammation, and facilitate the healing of bruises. There have been a number of studies of the phytochemical and pharmacological properties of the constituents of its flowers, stems and foliage which have confirmed that it has an inhibitory effect on some bacteria and viruses.
Due to the intense fragrance of its leaves and flowers, ''Helichrysum stoechas'' is used in perfumery and aromatherapy as a fixative in both its
essential oil
An essential oil is a concentrated hydrophobic liquid containing volatile (easily evaporated at normal temperatures) chemical compounds from plants. Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the ...
and floral
absolute
Absolute may refer to:
Companies
* Absolute Entertainment, a video game publisher
* Absolute Radio, (formerly Virgin Radio), independent national radio station in the UK
* Absolute Software Corporation, specializes in security and data risk ma ...
form. Like other
Helichrysums, it has a ''warm, sweet, caramellic hay, fruity, honey, tobacco, tonka'' organoleptic profile.
The essential oil (
CAS Registry Number 91845-22-6) is typically produced in Southern Europe around the
Mediterranean
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...
, and the floral absolutes are produced in
Egypt
Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
. The predominant active constituents are nerol acetate,
curcumin
Curcumin is a bright yellow chemical produced by plants of the ''Curcuma longa'' species. It is the principal curcuminoid of turmeric (''Curcuma longa''), a member of the ginger family, Zingiberaceae. It is sold as a herbal supplement, cosmetic ...
,
pinene
Pinene is a collection of unsaturated bicyclic monoterpenes. Two geometric isomers of pinene are found in nature, α-pinene and β-pinene. Both are chiral. As the name suggests, pinenes are found in pines. Specifically, pinene is the major comp ...
,
limonene
Limonene () is a colorless liquid aliphatic hydrocarbon classified as a cyclic monoterpene, and is the major component in the essential oil of citrus fruit peels. The (+)-isomer, occurring more commonly in nature as the fragrance of oranges, ...
,
kaempherol,
quercetin
Quercetin is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, seeds, and grains; capers, red onions, and kale are common foods containing appreciable amounts of it. It has a bitter flavor ...
,
luteolin
Luteolin is a flavone, a type of flavonoid, with a yellow crystalline appearance.
Luteolin is the main yellow dye from the '' Reseda luteola'' plant, used for dyeing since at least the first millennium B.C. Luteolin was first isolated in pure f ...
,
linalool
Linalool () refers to two enantiomers of a naturally occurring terpene alcohol found in many flowers and spice plants. Together with geraniol, nerol, and citronellol, linalool is one of the rose alcohols. Linalool has multiple commercial app ...
, and
geraniol
Geraniol is a monoterpenoid and an alcohol. It is the primary component of citronella oil and is a primary component of rose oil and palmarosa oil. It is a colorless oil, although commercial samples can appear yellow. It has low solubility i ...
, in addition to other
flavonoid
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 ...
s,
sesquiterpene
Sesquiterpenes are a class of terpenes that consist of three isoprene units and often have the molecular formula C15H24. Like monoterpenes, sesquiterpenes may be cyclic or contain rings, including many combinations. Biochemical modifications s ...
s and
hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colourless and Hydrophobe, hydrophobic; their odor is usually fain ...
s.
References
{{Taxonbar, from=Q1636806
Perennial plants
Flora of Southeastern Europe
Herbs
stoechas
Flora of North Africa