उशीर
Chrysopogon zizanioides (L.) Roberty
Poaceae · Chrysopogon
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.
A Samhita can only be read forwards, from the group to its members. This is the same list read backwards.
AS THE CLASSICAL TEXTS AND THE API PRESCRIBE
| Churna | 3–6 g |
| Kwatha | 50–100 ml |
| Anupana | Sheetajala |
| Kala | Adhobhakta |
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.
Ayurvedic Pharmacopoeia of India, Part I
| Marker | The 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.
| Rasa | TiktaMadhura |
| Guna | LaghuRuksha |
| Virya | Sheeta |
| Vipaka | Katu |
| Prabhava | Named for daha and trishna together — the pairing that puts it in Shadanga Paniya alongside musta and parpataka. |
| Doshakarma | Kaphapittahara. |
Tikta and madhura with sheeta virya and katu vipaka. It is the cooling drug of the summer preparations and of Shadanga Paniya.
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 anga | Mula (the root) |
| Why it matters | The aromatic root, and only the root. The aerial grass is fodder and is not the dravya. |
Virana names the grass; Ushira names its root. The distinction is the one a paper question turns on.
| English | Vetiver |
| Hindi | Khus |
| Kannada | Lavancha |
| Tamil | Vettiver |
| Telugu | Vettiveru |
| Malayalam | Ramacham |
| Marathi | Vala |
| Gujarati | Valo |
| Bengali | Khaskhas |
| Odia | Bena |
| Urdu | Khas |
| Shadanga Paniya | One of the six dravya the preparation is named for. |
| Ushirasava | Named for the dravya. |
| Chandanadi Taila | An ingredient. |
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.
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.
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.
| Status | Traditional use is long recorded. Modern clinical evidence is limited. |
| Suggested | The 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 established | There 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 gap | Published work on this dravya rarely records the origin or the standard of the material tested, so results cannot be attributed to a defined article. |
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.
| Contraindications | No absolute contraindication is documented here. This is written deliberately rather than left blank. |
| Interactions | No 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 breastfeeding | No 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. |
Grown as a crop: how to grow vetiver, from sowing to harvest, in Laisha's grow guides.