11/03/2026
When leaves aren't available, use the bark as an identification feature!
As ash trees mature, their bark tells a story. Black ash develops corky, scaly bark that becomes flaky and irregular over time, while other ash species, like green ash, develop bark that is characterized by deep ridges and furrows. A helpful memory trick is to remember “Black Flakes Fast”.
Help us map and conserve black ash across Ontario! Join the Ontario Black Ash Inventory project on iNaturalist and submit your observations. Your sightings support black ash conservation efforts against emerald ash borer and help inform seed collection work led by the Black Ash Community Action Network. https://bit.ly/3QW31EM