Trees · question 4

How are the leaves arranged on the twig?

Look at the whole leaves (with their stalk), not at the leaflets.

• Opposite: In pairs at the same height.
• Alternate: One at a time, alternating left and right.

All species with this feature

• Pinnate leaves
• Orange berries
• Pods

Still possible

• Box elder (Acer negundo)
• Elder (Sambucus nigra)
• Ash (Fraxinus excelsior)
• Honey locust (Gleditsia triacanthos)
• False acacia (Robinia pseudoacacia)
• Rowan (Sorbus aucuparia)
• Walnut (Juglans regia)
• Tree of heaven (Ailanthus altissima)

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