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Air· sourThin data

Cramp bark

Viburnum opulus

Bark · cooling · relaxing-astringent

The bark named for its job — a sour ease for a gripping cramp.

In the mouth

How it tastes

Bitter bark, slightly sweet, viburnum-astringent.

Traditional use

Folk practice used the bark when the womb or the gut seized. Sour, a little bitter, a tree medicine: it draws and lets go at once.

In the cup

A small piece of dried bark, decocted 12–15 minutes. Short cups at the time of cramp.

Blood

Sour blood · sour

Sour is cooling and astringent. It draws and binds, thickens thin blood, starts saliva, and hydrates even as it tightens. Sour plants carry the antioxidants of fruit. They move mucous and support the lungs — large doses irritate. Lemon-family plants show up again and again in sinus cups.

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Reached for

Who it feeds

The living bloom

Spring Azure, Summer Azure, Hummingbird Clearwing, Azalea Sphinx

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The promise

A careful hand

Old use exists. Modern safety is thin.

Bark tea is the tradition, kitchen-scale. Not a daily beverage. Identify the shrub — several viburnums share the hedge.

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Sits well with

Traditional kitchen and folk use only. This is not medical advice, diagnosis, or treatment. If you are pregnant, nursing, on medicine, or unwell, ask a clinician before drinking anything as a remedy.