It would help to link to some photographs, and make pronoun references unambiguous. I've never seen a manchineel tree. Perhaps they do look quite different i

It would help to link to some photographs, and make pronoun references unambiguous. I've never seen a manchineel tree. Perhaps they do look quite different in real life. But based on the photographs I've seen (e.g. on http://psytreasure.com/little-apple-death-deadly-plant-used-torture-instrument/ http://psytreasure.com/little-apple-death-deadly-plant-used-...) there's a risk of confusing the two plants. From what I can tell based on photographs (here walnut = Juglans regia): Leaves: Individual leaves are very similar but walnut leaves have a pinnate arrangement, manchineel don't. Fruit: If they're shaped like apples, or are yellowish, they're manchineel. However, manchineel are often more oval and coloured similarly to walnut (see photo on psytreasure page). Bark: There's enough overlap here that I wouldn't rely on it. Location: Manchineel trees are usually located on the coast or near water. Walnut trees can be found anywhere. Range: Manchineel trees are located around the Caribbean Walnut is Eurasian, but has North American relatives (e.g. black walnut). Advice: If you're near the Caribbean and see what looks like a walnut tree, avoid it. More general advice: If you're not sure what a plant is, don't eat it.