Recognize green ash by its opposite, pinnately compound leaves with 5 to 9 leaflets, usually with short stalks, and by its upright, single-trunk form that often reaches 50 to 70 feet (15 to 21 m).
Twigs are stout and opposite, and the bark develops firm, interlacing ridges with shallow furrows.
Take a photo and use Botan to confirm your plant identification.
Clear images work best. Avoid photos taken too close or too far away
Use these visible traits to check for green ash.
Check several branches, since opposite compound leaves and winged fruits are especially useful together.
Green ash shows clear visual differences from seedling form to fruiting branches.
Several named selections of green ash can be told apart by crown shape, branch habit, or fall leaf color.
In spring, green ash leafs out with opposite, compound leaves, and flowering clusters may appear before or as the leaves expand. Female trees later develop hanging samaras, the one-seeded winged fruits typical of ash. By late summer into fall, samaras often remain visible in clusters, and the foliage usually turns yellow before dropping. After leaf fall, the stout twigs and opposite branching pattern are easier to see.
Several ash and ash-like trees are regularly mistaken for green ash.
white ash(Fraxinus americana)
Also has opposite, pinnate leaves. White ash leaflets usually have whitish undersides and short stalks; green ash leaflets are typically greener beneath and more often stalked.
black ash(Fraxinus nigra)
Shares opposite compound leaves and ash form. Black ash usually has 7-11 nearly stalkless leaflets and corky, flattened twigs; green ash leaflets are often stalked.
boxelder(Acer negundo)
Confused because it has opposite compound leaves. Boxelder usually has 3-5 irregularly lobed leaflets and paired maple samaras; ash has narrower unlobed leaflets and single samaras.
Native to much of central and eastern North America, Fraxinus pennsylvanica occurs from the Great Plains east to the Atlantic region and from southern Canada into parts of the southern United States. It is most often found in floodplains, bottomland woods, streambanks, lake margins, and other moist lowlands. Seeing an ash in wet ground or along waterways helps narrow identification, especially outside upland forest settings where some other North American ashes are more typical.
Plant Photo ID
Upload a plant photo and recognize it with 98% accuracy
Use Botan to compare a photo and help verify the identification before you label or buy the plant.
Leaves are usually 6 to 12 inches (15 to 30 cm) long and compound, with 5 to 9 leaflets. Each leaflet is often 3 to 6 inches (8 to 15 cm) long.
Use Botan to identify a plant from a photo, then get species-specific care information, plant details, and common problems.
5 min read · 28 Sept 2026
Learn how to prepare your garden for winter with a practical six-step checklist covering cleanup, tender plant care, watering, mulching, winter protection, and winterizing equipment and containers.
10 min read · 7 Jul 2026
Bamboo grows extremely fast: some species can reach 5-6 m in just 3-4 months under the right conditions. This guide explains how much bamboo can grow per day, week, and year, and what affects its growth rate.
7 min read · 4 Nov 2026
A backyard pumpkin patch starts months before the first leaves turn: the harvest that ends up on the porch in October is decided by what a gardener does in late spring.
