''Artemisia pallens'' is an aromatic herb, in genus of small herbs or shrubs,

xerophytic A xerophyte () is a species of plant that has adaptations to survive in an environment with little liquid water. Examples of xerophytes include cactus, cacti, pineapple and some gymnosperm plants. The morphology (biology), morphology and physiology ...

in nature. Commonly known as dhavanam from the

Sanskrit Sanskrit (; stem form ; nominal singular , ,) is a classical language belonging to the Indo-Aryan languages, Indo-Aryan branch of the Indo-European languages. It arose in northwest South Asia after its predecessor languages had Trans-cultural ...

name दमनक (damanaka), (, , ). The flowers are

racemose A raceme () or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the shoo ...

panicle In botany, a panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a p ...

s, bear numerous small yellow flower heads or capitula, but the silvery white silky covering of down gives the foliage a grey or white appearance. Dhavanam has alternate pinnasect leaves (leaf which is divided into opposite pairs of lobes cut almost to the midrib In narrow divisions) or palmatisect leaves (the green tissue is divided into several segments not fully separated At the base).

Cultivation

It is commercially cultivated for its fragrant leaves and flowers. It has two distinct morphological types, one in which the plants are short in stature and flowering sets in early, and the other in which plants are tall and flowering sets in later. It grows from seeds and cuttings and reaches maturity in four months. The plant is woody in the lower part of the stem, but with yearly branches. It is mostly grown in the Indian states of

Andhra Pradesh Andhra Pradesh (ISO 15919, ISO: , , AP) is a States and union territories of India, state on the East Coast of India, east coast of southern India. It is the List of states and union territories of India by area, seventh-largest state and th ...

Karnataka Karnataka ( ) is a States and union territories of India, state in the southwestern region of India. It was Unification of Karnataka, formed as Mysore State on 1 November 1956, with the passage of the States Reorganisation Act, 1956, States Re ...

Maharashtra Maharashtra () is a state in the western peninsular region of India occupying a substantial portion of the Deccan Plateau. It is bordered by the Arabian Sea to the west, the Indian states of Karnataka and Goa to the south, Telangana to th ...

and

Tamil Nadu Tamil Nadu (; , TN) is the southernmost States and union territories of India, state of India. The List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of Indi ...

. ''Artemisia pallens'' is a preferred food for the larvae of a number of butterfly species.

Chemistry

Davanone, davan ether, davana furan and

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 ...

are the major constituents of davana oil. Methyl cinnamate, ethyl cinnamate, bicyclogermacrene, 2-hydroxyisodavanone, farnesol,

geranyl acetate Geranyl acetate is a terpenoid. It is a colorless liquid with a pleasant floral or fruity rose aroma. It is a colorless liquid but commercial samples can appear yellowish. Geranyl acetate is insoluble in water but soluble in organic solvents. Sev ...

sesquiterpene lactone Sesquiterpene lactones (SLs) are a class of sesquiterpenoids that contain a lactone ring. They are most often found in plants of the family Asteraceae (daisies, asters). Other plant families with SLs are Umbelliferae (celery, parsley, carrots) ...

s, and germacranolides are also found. The amount of davanone and linalool decreased while those of (''Z'')− and (''E'')−methyl cinnamate, (''E'')−ethyl cinnamate, bicyclogermacrene, davana ether, 2-hydroxyisodavanone, and farnesol increased from flower heads emergence stage to the initiation of seed set stage. Five compounds, (''Z'')− and (''E'')−methyl cinnamates, (''Z'')− and (''E'')−ethyl cinnamates, and geranyl acetate, were identified for the first time in davana oil.

Uses

The leaves and flowers yield an essential oil known as oil of Davana. Several species yield

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 some are used as

fodder Fodder (), also called provender (), is any agriculture, agricultural foodstuff used specifically to feed domesticated livestock, such as cattle, domestic rabbit, rabbits, sheep, horses, chickens and pigs. "Fodder" refers particularly to food ...

, some of them are a source of the

anthelmintic Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them without causing significant damage to the host. They may also ...

chemical santonin. Davana blossoms are offered to

Shiva Shiva (; , ), also known as Mahadeva (; , , Help:IPA/Sanskrit, ɐɦaːd̪eːʋɐh and Hara, is one of the Hindu deities, principal deities of Hinduism. He is the God in Hinduism, Supreme Being in Shaivism, one of the major traditions w ...

, the God of Transformation, by the devotees, and decorate his altar throughout the day. Oral administration of high doses aqueous/

methanol Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical compound and the simplest aliphatic Alcohol (chemistry), alcohol, with the chemical formula (a methyl group linked to a hydroxyl group, often ab ...

ic extract from the aerial parts of the plants was observed to reduce blood glucose levels in glucose−fed hyperglycemic and

alloxan Alloxan, sometimes referred to as alloxan monohydrate, is an organic compound with the formula . It is classified as a derivative of pyrimidine. The anhydrous derivative is also known, as well as a dimeric derivative. These are some of the earlie ...

-treated rabbits and rats.

Uses of Davana oil

*Davana oil is used in making perfumes of sweet and fruity fragrances. *Davana leaves and stalks are used in making bouquets, garlands, fresh or dry flower arrangements.

Hinduism

Dauna leaves are found abundantly on the Wadi Ratnagiri Mountain, in the city of

Kolhapur Kolhapur () is a city on the banks of the Panchganga River in the southern part of the Indian state of Maharashtra. Kolhapur is one of the most significant cities in South Maharashtra and has been a hub of historical, religious, and cultural a ...

. The mountain is home to Shri Jotiba. The plant is exclusively used as an offering to this deity at this temple. Dhavana is also used in Rathothsavam of sri khadri Narasimha swami temple, kadiri. There people throw dhavanam on the Ratham, while movie through the maadaveedhulu.

References

{{Taxonbar, from=Q3764734 pallens Herbs Medicinal plants of Asia Perfume ingredients Essential oils Plants described in 1838