Mom taught me the concept of "if there are three, let it be." This worked because poison oak, which makes clustered fruit that could be mistaken for unripe blackberries, has compound leaves with three leaflets, whereas wild blackberry was in the "if there are five, let it thrive" category of plants that are not likely to be harmful and possess compound leaves with five leafiets
— Feb 22, 2026 12:31PM
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