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The Oregon grape (Mahonia aquifolium) belongs to Berberidaceae (the Berberry family). It is a small evergreen tree that is distributed from British Columbia south to central California. This tree grows on exposed areas and dry, rocky sites in foothills and on montane slopes, and it can reach 1-2 m in height. The leaves are leathery, waxy, pinnate with 5-9 spiny leaflets. The yellow flowers bloom in dense clusters in late spring. After flowring, the spherical dark dusty blue berries are borne, and can be eaten raw, make good jam and wine. The Oregon grape was designated the Oregon state flower in 1899.
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