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......4 Leaves 1-pinnately compound or palmately 3-foliolate, either fascicled on short spur shoots (Alloberberis) or not fascicled (Mahonia); stems not spiny; leaves evergreen.
........5 Leaves palmately 3-foliolate; stems dimorphic (leaves fascicled on short shoots); berries red
..........6 Plant caulescent; flower solitary, or cymose to umbellate, borne on a stem with leaves; leaf segments several; fruit a berry.
............ 7 Flowers cymose or umbellate; stamens 6; berry globose, 8-12 mm long, 2-4 seeded; larger leaves with only 2 clefts that extend > halfway to the peltate center of the leaf (thus the leaf divided into 2 halves, the other sinuses shallow)
............ 7 Flower solitary; stamens 12-18; berry ovoid, 25-70 mm long, many-seeded; larger leaves with 5 or more clefts that extend > halfway to the peltate center of the leaf (thus the leaf fairly evenly divided into multiple lobes)