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Key to Identifying Common Colorado Landscape Trees – 65   arrow

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  • 65a – Leaflets up to 2 ½ inches long; all of uniform size. No milky sap from cut stem — European Mountain Ash


  • 65b – Leaflets 2-5 inches long; with leaflets increasing in size towards the leaf base. Milky sap exuding from cut stem — Staghorn Sumac