© Walther Otto Müller · Public domain · Commons
Taraxacum officinale
CautionGewöhnlicher Löwenzahn · (Taraxacum officinale)
Daisy family (Asteraceae)
Description
Strictly speaking, dandelion is not a single species but a whole group of barely distinguishable microspecies that reproduce largely without fertilisation. From the ground-level rosette of deeply toothed leaves rises a hollow, latex-bearing stalk carrying a single yellow flower head, which later becomes the familiar seed clock. Both herb and root are used: the leaves are gathered in spring before flowering, the root in autumn, when its inulin content climbs to as much as 40 percent. The sesquiterpene lactones taraxacin and taraxinic acid glucoside account for its characteristic bitterness. As a tea, dandelion is traditionally taken as a bitter for fullness and sluggish digestion, and as a spring course to flush the urinary tract — where drinking plenty, at least two litres a day, is essential. Young leaves make a classic wild salad.
CONTRAINDICATED for children
Not for children under 12. Salad amounts OK.
Classic bitter tea for digestive complaints.
Preparation & dosage
DECOCTION: 3–4 g + 150–250 ml cold water, boil and simmer 10–15 min. 3× daily before meals.
- Dry amount
- 3–4 g
- Doses per day
- 3×
- Max duration
- 2 weeks
⚠ Age restriction: ≥ 12 years — Per EMA from 12 years.
Sources: [4]
Spring flushing cure.
Preparation & dosage
DECOCTION for urinary flushing: 3–4 g. Drink ≥ 2 L water/day.
- Dry amount
- 3–4 g
- Doses per day
- 3×
- Max duration
- 2 weeks
⚠ Age restriction: ≥ 12 years — From 12 years.
Sources: [4]
Leaf tea for urinary flushing — traditional spring cure.
Preparation & dosage
LEAF INFUSION: 4–10 g + 150–250 ml boiling water. 3× daily with ≥ 2 L water.
- Dry amount
- 4–10 g
- Doses per day
- 3×
- Max duration
- 2 weeks
⚠ Age restriction: ≥ 12 years — From 12 years.
Sources: [3]
Edible wild vegetable, traditional spring tonic.
Preparation & dosage
SPRING SALAD: Young leaves before flowering.
- Doses per day
- 1×
Concentrated liquid extract as bitter drops.
Preparation & dosage
LIQUID EXTRACT: 90 drops 3× daily before meals in water.
- Liquid amount
- 1–3 ml
- Doses per day
- 3×
- Max duration
- 2 weeks
⚠ Age restriction: ≥ 18 years — Alcohol-containing tinctures not under 18.
Sources: [4]
With renal failure, diabetes or heart failure: avoid (hyperkalaemia risk). NOT with gallstones, bile duct obstruction, cholangitis.
⏱ Max continuous use: 4 weeks
Not recommended in pregnancy.
Not recommended in lactation.
Not for children under 12. Salad amounts OK.
Drug interactions
Diuretika, ACE-Hemmer, Kalium-sparende Diuretika
Very potassium-rich. Hyperkalaemia risk.
Contraindications
- Hypersensitivity to dandelion or Asteraceae.
- Bile duct obstruction, cholangitis, liver disease, gallstones, peptic ulcer.
- Renal failure, diabetes, heart failure.
- Children under 12.
Harvested part: root (autumn), herb (spring)
- Time of day:
- Dry morning, young rosette leaves before flower buds.
- Drying:
- Use fresh or dry at max 40 °C.
- Storage:
- 12 months — Airtight, dark, dry.
- Time of day:
- Autumn or early spring.
- Drying:
- Dig deep, slice lengthwise, dry on absorbent surface.
- Storage:
- 18 months — Airtight, dark, dry. 1–1.5 years.
- Sesquiterpenlactone (Taraxacin, Taraxinsäure-Glucosid)BitterContent: 0.05–1 %Root
Main bitter principle. Sensitizer in Asteraceae allergy.
- InulinPolysaccharideContent: im Herbst bis 40 %Root
Storage carbohydrate, prebiotic. Highest in autumn.
- Triterpene (Taraxasterol, Taraxerol)OtherWhole plant
Choleretic and inflammation-modulating.
- KaliumMineralContent: bis 4.5 % in BlätternLeaf
Very high potassium — aquaretic. Caution in renal failure.
- Flavonoide (Luteolin, Apigenin, Quercetin-Glykoside)FlavonoidLeaf
Antioxidant.
- Phenolcarbonsäuren (Chlorogensäure, Kaffeesäure)Phenolic acidAerial parts
Antioxidant, hepatoprotective.
- Vitamine (A, B-Komplex, C, K)VitaminLeaf
Young leaves vitamin-rich.
- [3]MonographEMA/HMPC/579636/2008 — Community herbal monograph on Taraxacum officinale Weber ex Wigg., folium (Final, 12 November 2009)(accessed: 2026-05-18)
- [4]MonographEMA/HMPC/212895/2008 Corr 1 — Community herbal monograph on Taraxacum officinale Weber ex Wigg., radix cum herba (Final, 12 November 2009)(accessed: 2026-05-18)
- [1]WikipediaGewöhnlicher Löwenzahn (Wikipedia DE)(accessed: 2026-05-16)
- [2]WikipediaTaraxacum officinale (Wikipedia EN)(accessed: 2026-05-16)