Whole herbsDampness-drainingPlantaginis Herba

Che Qian Cao (Asiatic Plantain Herb)

A practical guide to Che Qian Cao: what it is, how Traditional Chinese Medicine uses it, the classical formulas it appears in, and who should be careful with it.

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Last reviewed Oct 29, 2026

Quick Facts

Latin Name	Plantaginis Herba
Chinese Name & Pinyin	車前草 · Che Qian Cao
Medicinal Part	Whole herbs
The item	Che Qian Cao is the dried whole plant of plantain, used raw. It usually goes into decoctions, and in small doses it is steeped as a clearing tea.
Nature and channels	Sweet, bland, cold. Enters the Liver, Kidney, Lung, and Small Intestine. It clears damp-heat, promotes urination, eases lin, clears heat, and brightens the eyes.
Pharmacopoeia line	Clears heat and promotes urination. Resolves phlegm, cools blood, and resolves toxin. Used for scanty dark urine, painful lin, edema, summerheat-damp diarrhea, red swollen eyes, and throat swelling.
Pattern cues	Scanty dark urine. Stinging hesitant urination. Red swollen eyes. Summerheat-damp diarrhea.
In this article	Che Qian Cao versus Jin Qian Cao. Lower-burner urination versus gallbladder stones. Why the dose stays moderate. Why pregnancy is a caution. Why stinging urination needs a clinic. Who should skip it.

What Is Che Qian Cao?

Che Qian Cao (车前草; Chē Qián Cǎo; Latin: Plantago asiatica; English: plantain herb) in the current pharmacopoeia is the dried whole plant of a plantain-family annual or biennial, pulled with the root in summer, washed, cut, and sun-dried, used raw. It is sweet, bland, and cold, enters the Liver, Kidney, Lung, and Small Intestine channels, and its core actions are to clear damp-heat, promote urination, and ease lin, and to clear heat and brighten the eyes. It usually goes into decoctions. The usual amount is 10–15 g. It needs no special cooking order. In home practice it is also steeped lightly as a heat-clearing tea in small doses.

It is not Jin Qian Cao. Money herb is cold, sweet-salty, and better at clearing liver-gallbladder damp-heat, expelling stones, and fading jaundice; it does not focus on lower-burner lin or brightening the eyes. Spleen-stomach deficiency cold with loose stools is a poor match. Use caution in pregnancy and lactation. Eye redness with severe pain or vision change needs a clinic first. Allergy to plantain-family plants is a hard skip.

It is used most often for three patterns:

Scanty dark urine with stinging, hesitant urination — seek care
Red, swollen eyes with discharge and blurred vision
Summerheat-damp diarrhea with scanty urine

Sweet, bland, and cold, it is not a daily “urination tea” to keep increasing. Draining when there is no damp-heat chills the spleen and consumes fluids.

When lower-burner damp-heat fouls the water passage, urine runs scanty and dark with stinging flow, summer damp brings loose stools, and liver-channel wind-heat rises to red, swollen eyes. Che Qian Cao is sweet, bland, and cold. It clears heat, promotes urination, and brightens the eyes, which is why it appears in Che Qian Zi San (Plantago Seed Powder)–type formulas. It drains more than it holds. A cold weak spleen and stomach, with loose stools, get worse if more is added.

Che Qian Cao is not a catch-all urine or eye herb. In spleen-stomach deficiency cold with loose stools, with no damp-heat, or in pregnancy and lactation, using it alone is a poor match. Raw, and whether it belongs in a formula, should be decided by a licensed Chinese medicine practitioner after pattern diagnosis.

Che Qian Cao: Materia Medica Profile

Identification & Quality Standard

Plantaginis Herba

Botanical Origin

The dried whole herb of Plantago depressa Willd.or Plantago asiatica L. (Plantaginaceae).

Production Regions

Produced all around China.

Quality Requirements

Superior medicinal material is intact leaves and a grayish-green color.

Macroscopic Features

Plantago depressa Willd: Root grows thickly, whisker-like; leaf base has long petiole; leaf is wrinkled, after being flattened, it has a long elliptical or oval lanceolate shape, 6~13cm long, 2.5~8cm wide. Externally grayish-green or dirty green, with 5~7 obvious curved veins; apex is blunt or pointy short, base is wide wedge-shape; entire or irregular wavy serrulate leaf. Numerous flower spikes, long floral axis; capsules are cracked, persistent calyx remains. faintly aromatic odor; slightly bitter taste. Plantago asiatica L: Straight long tap root. Leaf is relatively narrow, long elliptical or oval lanceolate shape, 5~14cm long, 2~3cm wide.

Main Regions and Quality Identification

Traditional materia medica and industry experience value certain producing regions, though actual quality also depends on variety, harvest time, processing, and storage. Che Qian Cao grows across the north and south of the country; main producing regions include Shandong, Henan, and Jiangsu. The raw product looks like irregular section pieces, with fine curly root hairs, gray-green or dark green leaves bearing a slight down, a faint odor, and a bland taste. The common look-alikes are other herbs of the same genus — tell them apart by details such as leaf shape and inflorescence length.

Traditional Properties & Historical Lineage

Nature, Flavour & Channel Tropism

Sweet; ColdLiverKidneyLungSmall Intestine

1. Records in Classic Materia Medica

Shen Nong Ben Cao Jing: lists it as an upper-grade herb — "treats qi lin (strangury due to qi), stops pain, frees the water passage and urination, and removes damp bi."
Ming Yi Bie Lu: adds that it "treats metal wounds, stops nosebleed, stasis blood and blood masses, blood in the stool, red urine, stops restlessness, sends the qi down, and removes small worms."
Xin Xiu Ben Cao: notes "pound the leaves and apply to abscesses and metal wounds."
Ben Cao Gang Mu: clarifies that it "guides the heat of the small intestine out, and stops summer-damp diarrhea-dysentery."
De Pei Ben Cao: points out that "used with Ren Shen and Bai Zhu, it drains damp-heat without harming the true qi."
Zhong Hua Ben Cao: summarizes its actions as clearing heat, promoting urination, dispelling phlegm, cooling the blood, and resolving toxin.

2. How Views of Its Nature Changed

Different physicians saw it somewhat differently. Some stressed its clearing of damp-heat — used more for difficult urination, turbid discharge, and similar patterns. Others noted it can also support tonification — when paired with tonifying herbs, it clears and drains without harming the upright qi. Still others set its scope with cautions — that people with spleen-stomach cold should not use it alone. This difference makes Che Qian Cao's use more targeted and keeps it from being treated as a universal herb.

Core Efficacies & Traditional Applications

Traditional Functions

Clears heat and promotes diuresis and stranguria, expels phlegm, cools blood, and resolves toxin.

1. First Direction: Promoting Urination and Easing Painful Urination

Traditional action: clear the damp-heat of the lower burner, promote urination, and help expel the damp-heat evil from the body.
Typical signs: scanty, dark urine, dribbling with stinging pain, lower-limb edema, and a damp scrotum — the patterns of damp-heat pouring down or water-damp stagnation.
Usual combinations: often paired with clearing-draining, strangury-easing herbs such as Hua Shi, Mu Tong, and Qu Mai to strengthen the urination-promoting, heat-clearing effect.
Who should not self-use: those with spleen-stomach cold and frequent loose stools — to avoid worsening the deficiency-cold symptoms.

2. Second Direction: Clearing Heat and Brightening the Eyes

Traditional action: clear the wind-heat of the liver channel, easing the redness, swelling, and pain of the eyes.
Typical signs: the patterns of liver fire rising or wind-heat disturbing the upper body — red, swollen eyes, increased eye discharge, and blurred vision.
Usual combinations: often paired with liver-clearing, eye-brightening herbs such as Ju Hua, Jue Ming Zi, and Xia Ku Cao to strengthen the heat-clearing, eye-brightening effect.
Who should not self-use: those with spleen-stomach cold should not use it alone for a long time, to avoid harming the spleen-stomach yang.

3. Classic Pairing: Che Qian Cao With Bai Mao Gen

The classic herb pair is Che Qian Cao with Bai Mao Gen. Che Qian Cao excels at clearing the damp-heat of the lower burner and promoting urination to ease painful urination; Bai Mao Gen excels at clearing heat, cooling the blood, promoting urination, and stopping bleeding. Together they coordinate — strengthening the clearing of lower-burner damp-heat while also cooling the blood and stopping bleeding — suiting the patterns of damp-heat pouring down with blood in the urine and frequent, urgent urination. Still, this pairing needs a practitioner's pattern diagnosis; do not combine herbs on your own.

Modern Research

Modern research offers useful context, but Traditional Chinese Medicine prescribes on whole-pattern diagnosis rather than isolated compounds.

1. Main Chemical Constituents

Detected constituents include flavonoids (such as plantaginin and homoplantaginin), iridoids (such as geniposidic acid), volatile oils, polysaccharides, and organic acids. In vitro experiments observed that some components have certain antibacterial and anti-inflammatory activity; in animal experiments, related extracts showed some diuretic effect and a relieving effect on intestinal inflammation. No sufficient human clinical study has yet reached a clear efficacy conclusion.

2. Current Research Directions

Current research mainly focuses on the activity screening of the constituents and their effects on inflammation and metabolism-related indicators: experiments observed that some extracts inhibit common pathogenic bacteria in vitro, and in animal models may help reduce intestinal inflammatory responses. More human studies are still needed to verify the actual actions of these components in people.

3. Limitations of Current Research

Lab results are not clinical efficacy — in vitro and animal results cannot be directly equated with the treatment effect after a person takes it; reactions differ across species and environments.
Extracts and monomers are not the same as traditional decoction pieces — the single-component extracts commonly used in modern research differ completely from the daily-use Che Qian Cao slices in composition and dose; they cannot be converted directly.
Doses and preparation methods vary between studies — the extraction solvents, concentrations, and administration methods across studies differ greatly; the results lack a unified reference standard.
A single component does not define the whole herb — Che Qian Cao works as a whole through many components; one component's activity cannot represent the whole herb's full effect.

Comparing Similar Herbs

1. What They Share

Che Qian Cao and the commonly compared Jin Qian Cao share two main points:

Both have clearing damp-heat and promoting urination as main actions.
Both are used for the traditional patterns of damp-heat internally accumulated — difficult urination and lower-limb edema — and both may appear in damp-clearing, heat-draining formulas.

2. The Key Differences: Che Qian Cao vs. Jin Qian Cao

Nature and flavors: Che Qian Cao is cold with sweet-bland flavors, settling in movement; Jin Qian Cao is cold with sweet-salty flavors, cool and seep-draining.
Focus: Che Qian Cao is better at clearing the damp-heat of the lower burner, promoting urination and easing painful urination, and also clears heat to brighten the eyes; Jin Qian Cao is better at clearing the damp-heat of the liver and gallbladder, discharging stones and clearing jaundice — often used for hepatobiliary stones and jaundice.
Qi tendency: Che Qian Cao settles and descends — mainly regulating the qi stagnation of lower-burner water-damp and damp-heat; Jin Qian Cao seeps and drains — mainly regulating the damp-heat constraint of the liver and gallbladder.
Best fit: Che Qian Cao's traditional indications are scanty, dark urine, dribbling with stinging pain, and red, swollen eyes; Jin Qian Cao's are hypochondriac distending pain, jaundice, and gallstones.
Not suitable: Che Qian Cao is not for people with spleen-stomach cold and frequent loose stools; Jin Qian Cao is likewise not for spleen-stomach cold, and because of its salty flavor, caution is needed for people with a salt restriction.
Use scenes: Che Qian Cao appears more in formulas for clearing lower-burner damp-heat, easing painful urination, and brightening the eyes — or for short-term regulation of damp-heat discomfort; Jin Qian Cao appears more in formulas for hepatobiliary diseases — discharging stones and clearing jaundice.

3. One-Sentence Summary

Simply put, Che Qian Cao leans toward clearing lower-burner damp-heat, promoting urination and easing painful urination — and can also brighten the eyes, whereas Jin Qian Cao leans toward clearing liver-gallbladder damp-heat, discharging stones, and clearing jaundice. Both can be used for damp-heat-related symptoms, but they are not interchangeable.

Classical Formulas Containing Che Qian Cao

Classic Formula 1: Che Qian Zi San (Plantago Seed Powder)

Combination logic: In this formula, Che Qian Cao (or its seed, Che Qian Zi) is the lord — mainly clearing damp-heat and promoting urination to ease painful urination; with Mu Tong and Hua Shi it strengthens the clearing-draining, strangury-easing effect; with Sheng Di and Zhu Ye it clears heat and cools the blood — working together to solve the blood in the urine and dribbling, stinging pain of damp-heat pouring down. This herb alone cannot cover the blood-cooling and the overall effect of the combination — several herbs working together are needed.

Traditional use: traditionally used for heat lin and blood lin — the lower-burner damp-heat patterns of difficult urination, urethral stinging pain, and blood in the urine.

Modern note: modern clinical use requires a doctor's pattern diagnosis and standard care; do not self-apply just because the formula name relates to urinary conditions.

Classic Formula 2: Che Qian Cao Yin (Plantain Drink)

Combination logic: In this formula, Che Qian Cao is the core herb — clearing heat, draining damp, and stopping diarrhea; with Fu Ling and Bai Zhu it strengthens the spleen and drains damp — working together to solve the diarrhea of summer-damp or damp-heat. This herb alone cannot cover the spleen-strengthening and diarrhea-stopping overall effect — several herbs working together are needed.

Traditional use: traditionally used for summer-damp diarrhea-dysentery — loose stools from damp-heat and scanty, dark urine.

Modern note: modern clinical use requires a doctor's pattern diagnosis and standard care; do not self-apply just because the formula name relates to gastrointestinal conditions.

Formulas vs. Single Herbs

A formula is a whole worked out by many herbs together — a single Che Qian Cao cannot simply replicate a full formula's effect. The formula's doses and combinations are holistic: the ratios and combinations of different herbs are designed for the pattern, and splitting or replacing them on your own may affect the effect. The common misunderstanding: that because a herb works inside a formula, taking it alone works the same way — in fact, the formula's synergy cannot be replaced by a single herb. Don't build your own formula from online articles.

Diet & Daily Home Use

1. Home Tea

Tea — Che Qian Cao Ju Hua Cha: dried Che Qian Cao slices 5 g, Ju Hua 3 g, Gou Qi 2 g. Steep all the ingredients in boiling water, cover and let sit 10 minutes, then drink. Suited to the mild damp-heat discomfort of staying up late — red, swollen eyes and scanty, dark urine. Not for those with spleen-stomach cold and frequent loose stools. Suggested: 2–3 times a week; do not drink more than 3 days continuously. Note: Che Qian Cao is a medicinal decoction piece — do not treat it as an ordinary food and use it in large amounts long-term; keep it separate from the vegetables you eat daily.

2. Decoction and Processing Differences

The difference between the raw and processed forms: the raw product keeps its original character with a stronger clearing-draining action; processed forms are generally honey-fried (leaning toward moistening the lung) or wine-fried (leaning toward activating the blood) — daily home use is mostly the raw product. At home, Che Qian Cao generally needs no pre-boiling, late addition, or bagging — it can be cooked together with the other ingredients. Different forms cannot be converted directly: for example, 10 g of slices cannot be directly equated with a dose of extract — follow the doctor's guidance.

3. Dosage and Course

The common dose in traditional prescriptions is 10–15 g — somewhat larger for promoting urination and easing painful urination, somewhat smaller for clearing heat and brightening the eyes. Food-therapy doses must be lower than medicinal ones — generally 5–8 g. Long-term continuous use is not advised: don't drink continuously beyond 1 week. Special groups — pregnant women, children, and the elderly — should adjust the dose under a doctor's or pharmacist's guidance; do not raise the dose or extend the time on your own.

Contraindications & Safety Warnings

1. Who Should Avoid It

Spleen-stomach cold with frequent loose stools — the traditional pattern caution.
Pregnancy and breastfeeding — there is not enough safety data yet; use with caution.
Children and the elderly — weaker body function; adjust the dose and consult a doctor.
Liver or kidney impairment — avoid self-use, to avoid adding metabolic burden.
Allergy to Che Qian Cao or Plantaginaceae (plantain-family) plants — may show rash and itching.
Those in special treatment — such as anticoagulants or blood-pressure medications — consult a doctor first.

2. Interactions and Diet Notes

Che Qian Cao may affect the effect of anticoagulants — if taken together, consult a doctor to adjust the dose; it may work together with some blood-pressure medications, causing blood pressure to drop too low. There is no sufficient evidence for a general "food clash" between ordinary foods, but certain herbs can interact with specific drugs — anyone on medication should consult a doctor or pharmacist first.

3. Adverse Reactions and Overdose Risk

Overdose may bring gastrointestinal discomfort — nausea, vomiting, loose stools. If marked discomfort, allergy signs, persistent vomiting, breathing difficulty, altered consciousness, or rapidly worsening symptoms appear, stop at once and seek medical care.

Frequently Asked Questions About Che Qian Cao

What is Che Qian Cao? Are Che Qian Zi and Ze Xie the same?

Che Qian Cao (车前草) is the dried whole herb of Plantago asiatica or Plantago depressa (Plantaginis Herba), a common Chinese herb centered on clearing heat and promoting urination to free lin, transforming phlegm, cooling the blood, and detoxifying. Che Qian Zi promotes urination and frees lin, leaning to the seed. Ze Xie promotes urination and percolates dampness, leaning to the lower burner. The three cannot be interchanged by equal weight. Write Che Qian Cao. Use caution in Spleen-Stomach deficiency cold.

What is the composition and traditional use of Che Qian Cao?

Pharmacopoeial name Che Qian Cao, Latin Plantago asiatica or Plantago depressa. Sweet and cold; enters the Liver, Kidney, Lung and Small Intestine channels. It acts to clear heat and promote urination to free lin, transform phlegm, cool the blood, and detoxify. It is used for heat lin with rough pain, edema with scant urine, summer-damp diarrhea, phlegm-heat cough, hematemesis and epistaxis, and abscesses and sores. Clears heat and promotes urination to free lin.

How do you choose raw versus prepared? Can Che Qian Zi replace it?

Cut into sections and used raw or fresh. Che Qian Zi leans to the seed without specialized whole-herb detoxifying; it cannot replace the formula by equal weight. Commercial products follow regulated processing; do not self-modify.

What is the usual dosage? Can it be drunk daily as a heat-clearing tea?

Decocted, 9-30 g, fresh double. Modern use requires a practitioner to name the dose. It is not a four-season “plantain tea.” Spleen-Stomach deficiency cold only injures further. Heat lin needs a practitioner to name a short course; it does not replace assessment.

What are the contraindications? Can it be used in pregnancy?

Use caution in Spleen-Stomach deficiency cold. Not suitable for deficiency slippage of essence and qi. Pregnancy requires practitioner assessment. Stop if loose stool or fatigue appears. Worsening rough painful urination or high fever need immediate medical care.

Can Che Qian Cao clear heat and promote urination to free lin, and detoxify?

It can help heat lin with rough pain, edema with scant urine, phlegm-heat cough, hematemesis and epistaxis, and abscesses and sores. It clears heat and promotes urination to free lin, transforms phlegm, cools the blood and detoxifies—not a specific for every heat lin or every cough.

Can Che Qian Cao be drunk daily as a heat-clearing or urine-promoting tea?

Heat lin may enter a short formula; Spleen-Stomach deficiency cold only injures further. “Plantain must promote urination” does not replace assessment. Clearing heat and promoting urination to free lin should be named by a practitioner with form and dose.

How do you choose among Che Qian Cao, Che Qian Zi, Ze Xie, Fu Ling and Bai Mao Gen?

Che Qian Cao clears heat and promotes urination to free lin while transforming phlegm, cooling the blood and detoxifying, leaning to heat lin and the whole herb. Che Qian Zi promotes urination and frees lin, leaning to the seed. Ze Xie promotes urination and percolates dampness, leaning to the lower burner. Fu Ling promotes urination and percolates dampness while strengthening the Spleen, leaning to Spleen deficiency. Bai Mao Gen cools the blood and stops bleeding while promoting urination, leaning to heat lin with blood in urine. Heat lin and detoxifying favor Che Qian Cao; seed favors Che Qian Zi; lower burner favors Ze Xie; Spleen deficiency favors Fu Ling; blood in urine favors Bai Mao Gen. They may be referenced after pattern differentiation; Spleen-Stomach deficiency cold forbids large Che Qian Cao.

How is Che Qian Cao commonly modified? What is the representative use?

Depends on the pattern. Heat lin may add Hua Shi; phlegm-heat may add Huang Qin. Write Che Qian Cao; do not replace the whole-herb detoxifying action with an equal weight of Che Qian Zi.

How do you choose and store Che Qian Cao?

Choose regulated Chinese medicinal materials with intact whole herb. Moldy, damp, or abnormal-smelling lots are discarded. Store cool and dry. Buy “Che Qian Cao”; do not replace clearing heat and promoting urination to free lin, and detoxifying with an equal weight of Che Qian Zi or Ze Xie.

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Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.