Allergens

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Pecan
Pecans: the official state tree of Texas. You’ll find pecan trees in the woods and orchards all over Texas. Though pecans are delicious in pies and other deserts, the pollen produced by pecan trees is second only to ragweed as a source of severe allergies. Peak time for pecan pollen release occurs from mid-March to late May, when it is spread all over the state by springtime winds.