LAISHA · DRAVYAGUNA

Ushira

उशीर

Chrysopogon zizanioides (L.) Roberty

Poaceae · Chrysopogon

Benefits & side effects

TRADITIONAL VIEW, WITH SAFETY LIMITS

Hindi name: Khus

What the texts say Ushira does

What the evidence says. Traditional use is long recorded. Modern clinical evidence is limited.

Side effects and limits

Widely used in food, drink and cosmetics as well as medicine, with no significant toxicity recorded. The practical problem is adulteration with spent root from the perfume industry rather than harm. Anyone pregnant, on medication or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.

Avoid or ask first: No absolute contraindication is documented here. This is written deliberately rather than left blank.

A traditional classification, not a recommendation. The full safety record is below.

Stands in 9 groups

A Samhita can only be read forwards, from the group to its members. This is the same list read backwards.

Photographs

Matra and anupana

AS THE CLASSICAL TEXTS AND THE API PRESCRIBE

Churna3–6 g
Kwatha50–100 ml
AnupanaSheetajala
KalaAdhobhakta

The classical daha-trishna matra.

Reported from Sharangadhara Samhita and the Ayurvedic Pharmacopoeia of India. Laisha states what the texts prescribe; it does not recommend. No quantity here is adjusted for a particular person — not for agni, koshtha, bala, age, pregnancy, kidney or liver function, or anything already being taken.

Pharmacopoeial standard

Ayurvedic Pharmacopoeia of India, Part I

MarkerThe volatile oil profile
Assay
Total ash
Acid-insoluble ash
Alcohol-soluble extractive
Water-soluble extractive
Foreign matter

Chrysogon zizanioides root. Spent root left after oil distillation passes every identity test and has no oil, so the oil content is the test that matters.

These are the marker and the identity test for this dravya, and they are not a test Laisha has run on anything. Laisha does not state the numeric limits here: the assay, ash and extractive figures must be read from the current edition of the Ayurvedic Pharmacopoeia of India, because a wrong limit printed here is a number a laboratory would act on. The entries in this library that DO carry figures carry them because each one was checked.

Rasapanchaka

Rasa
TiktaMadhura
Guna
LaghuRuksha
ViryaSheeta
VipakaKatu
PrabhavaNamed for daha and trishna together — the pairing that puts it in Shadanga Paniya alongside musta and parpataka.
DoshakarmaKaphapittahara.

Tikta and madhura with sheeta virya and katu vipaka. It is the cooling drug of the summer preparations and of Shadanga Paniya.

Karma and part used

Daha prashamanaTrishna nigrahanaJwaraghnaStambhanaMutralaVarnya

These are the actions the classical texts record. They are statements about what the tradition holds, and this library does not restate them as findings about a human body.

Upayukta angaMula (the root)
Why it mattersThe aromatic root, and only the root. The aerial grass is fodder and is not the dravya.

Paryaya

ViranaSugandhimulaNaladaAbhayaJalashaya

Virana names the grass; Ushira names its root. The distinction is the one a paper question turns on.

Names, by language

EnglishVetiver
HindiKhus
KannadaLavancha
TamilVettiver
TeluguVettiveru
MalayalamRamacham
MarathiVala
GujaratiValo
BengaliKhaskhas
OdiaBena
UrduKhas

Classical references

Charaka Samhita
Sutrasthana, chapter 4 (Shadvirechanashatashritiya)
Named among the Dahaprashamana, the Jwarahara and the Varnya mahakashaya.
Sushruta Samhita
Sutrasthana, chapter 38 (Dravyasangrahaniya)
Named in the Sarivadi and Eladi ganas.
Bhavaprakasha Nighantu
Karpuradi Varga
Gives the rasa, guna, virya and vipaka.

Formulations it appears in

Shadanga PaniyaOne of the six dravya the preparation is named for.
UshirasavaNamed for the dravya.
Chandanadi TailaAn ingredient.

Adulterants and substitutes

The roots of other aromatic grasses, particularly Cymbopogon species, are traded as khus, and spent root left after the essential oil has been distilled is sold on as the whole article. Spent root looks correct and smells of almost nothing, which is the check: the dravya is bought for an aroma, so a sample without one has already been used.

Identity

Long published as Vetiveria zizanioides; Chrysopogon is the accepted genus in the current backbone, and both names appear in the pharmacopoeial and trade literature. A student meeting Vetiveria in an older textbook is meeting the same grass.

A WAY TO REMEMBER IT

Chrysopogon is Greek chrysos, gold, and pogon, a beard — the golden bearded flower spike. Zizanioides means resembling Zizania, wild rice. The root is woven into screens that are wetted so the hot wind arrives cooled, which is the same karma the texts give it.

What the tradition holds

Ushira is named among the Dahaprashamana and Jwarahara mahakashaya of the Charaka Samhita and is one of the six dravya of Shadanga Paniya. That is what the tradition holds and where it is recorded.

What the evidence says

StatusTraditional use is long recorded. Modern clinical evidence is limited.
SuggestedThe dravya holds a pharmacopoeial monograph in India, which records an accepted identity and quality standard for the article. That is a standard for the material, not evidence of an effect in a body.
Not establishedThere is not enough good clinical evidence to establish an effect on any named health condition. Long traditional use is not a substitute for that evidence, and this library does not present it as one.
The honest gapPublished work on this dravya rarely records the origin or the standard of the material tested, so results cannot be attributed to a defined article.

Safety

Widely used in food, drink and cosmetics as well as medicine, with no significant toxicity recorded. The practical problem is adulteration with spent root from the perfume industry rather than harm. Anyone pregnant, on medication or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.

ContraindicationsNo absolute contraindication is documented here. This is written deliberately rather than left blank.
InteractionsNo specific drug interaction is documented for this dravya. That is the honest state of the evidence, not a statement that none exists — most Ayurvedic dravya have never been studied for interaction with modern medicines at all.
Pregnancy and breastfeedingNo specific harm in pregnancy is documented, and the root is in wide food and beverage use. No adequate study in pregnancy exists, so safety has not been formally established.

Growing it

Grown as a crop: how to grow vetiver, from sowing to harvest, in Laisha's grow guides.

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What this is not

Sources

GBIF Backbone Taxonomy species-match record for Chrysopogon zizanioides (L.) Roberty
Global Biodiversity Information Facility (GBIF) · read 2026-09-29
The accepted botanical name and family standing behind the Sanskrit name.
https://api.gbif.org/v1/species/match?name=Chrysopogon%20zizanioides
The Ayurvedic Pharmacopoeia of India, Part I
Pharmacopoeia Commission for Indian Medicine and Homoeopathy, Ministry of Ayush, Government of India · read 2026-09-29
The official Indian pharmacopoeial standing of the dravya and which part is the pharmacopoeial article.
https://pcimh.gov.in/
Bhavaprakasha Nighantu
Bhavaprakasha Nighantu · read 2026-09-29
The rasa, guna, virya and vipaka as the nighantu gives them.
https://niimh.nic.in/ebooks/ebnighantu/
Sharangadhara Samhita, Madhyama Khanda — the matra of the kalpanas
Sharangadhara Samhita, Madhyama Khanda · read 2026-09-29
The classical quantity for each preparation, cited to where the number comes from.
https://niimh.nic.in/ebooks/esharangadhara/
The Ayurvedic Pharmacopoeia of India, Part I - monograph for this dravya
Pharmacopoeia Commission for Indian Medicine and Homoeopathy, Ministry of Ayush, Government of India · read 2026-09-29
The pharmacopoeial identity of the article and the marker used to establish it.
https://pcimh.gov.in/
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