Couch Grass

At a Glance

Common name

Couch Grass

Scientific name

Elymus repens

Family

Poaceae

Region

Europe

Plant part

Rhizome (root)

Caffeine

Caffeine Free

Evidence

Insufficient

Safety review

Safety information on file

Botanical Description

A common grass with long narrow green blades, a flat spike of alternating seedlets, and an extensive creeping rhizome — the medicinal part, long valued as a soothing urinary demulcent.

Also known as: Quackgrass, Triticum repens, Agropyron repens, Dog Grass

Historical Background

Used in European herbalism since antiquity as a gentle, soothing urinary tonic; Hippocrates and later Eclectic physicians recommended it for bladder and kidney irritation.

Earliest recorded uses: Bladder and kidney discomfort, urinary soothing, and as a mild diuretic.

Cultural significance: A ubiquitous 'weed' valued as a softening, demulcent root tea in cottage and clinical practice alike.

1. Classical

   Greek physicians note couch grass root for urinary complaints.

2. 19th century

   Eclectic and European herbalists use the decoction for bladder soothing.

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Flavor & Aroma

Aroma: Fresh, hay-like, green

Tea Preparation

Modern Evidence

Mucilage (triticin) and silicates account for the demulcent urinary tradition; clinical evidence is limited.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.