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Harmless💊 Medicinal

🌳 European Ash

Fraxinus excelsior · Oleaceae

🌳 Temperate Europe🏔️ Mountains
🧠 To remember it“Black buds, opposite leaves: it's ash, even in the dead of winter” — the only large European tree with buds of such a distinct colour.
European Ash — Fraxinus excelsior

🔍 Identify it without mistakes

Large tree with opposite compound leaves consisting of 7-13 toothed leaflets. Characteristic velvety black buds make it highly recognizable in winter (unique among large European trees). Elongated, paddle-shaped fruit (samaras) hang in clusters that persist on the tree through much of the winter.

  1. velvety black buds in opposite arrangement — a nearly unique winter identifier in Europe
  2. opposite compound leaves with 7-13 toothed leaflets
  3. elongated paddle-shaped samaras grouped in hanging clusters
  4. smooth grey bark when young, developing diamond-shaped fissures with age
  5. often high, clear canopy with an open crown that lets light pass through
Size25-40 m
FloweringApril-May (before the leaves)
Habitatcool, nutrient-rich forests, riparian woodlands, deep soils with a steady water supply

⚠️ Not to be confused with

no dangerous look-alikes reported (-)none

To tell them apart: the velvety black opposite buds are unique among large European deciduous trees, even in winter without leaves

🍽️ Eating it

Preparation : mainly used for medicinal purposes (leaf) rather than food; young green fruits (samaras) are sometimes pickled in certain regional traditions, but remain poorly documented and bitter

💊 Healing with it

leaves traditionally used as a mild diuretic and to relieve minor joint pain, as part of a spring cleansing cure

Level of evidence : traditional (recognized by EMA/HMPC for traditional diuretic use) — EMA/HMPC, community monograph on Fraxini folium

⚠️ not recommended in cases of edema caused by heart or kidney failure requiring fluid restriction

🪓 Other bushcraft uses

  • flexible, shock-resistant wood, historically sought after for tool handles, axe shafts, and bows (one of the best European bow woods alongside yew)
  • young green samaras edible in some regional cuisines, pickled like capers
Sources (3)

No entry replaces a certain identification in the field, or medical advice. When in doubt: don't eat it. If ingestion is suspected: poison control or 112/911.