Mahonia × media 'Arthur Menzies' (syn. Mahonia 'Arthur Menzies') Berberidaceae
Arthur Menzies Mahonia   ma-HO-ni-a
- Evergreen shrub, 6-10 feet (1.8 -3 m) tall, upright, may become leggy. Leaves compound, large, to 45 cm, to 19 leaflets, 3-4 spines per side, deep blue-green. Flowers yellow, in large, erect clusters (10-25 cm long × 20-25 cm wide), blooms in early winter. Fruit blue-purple, spring.
- Hardy to USDA Zone (7) 8 A seedling that was selected at the Washington Park Arboretum, Seattle, in 1961. Mahonia × media is a hybrid, from M. japonica × M. lomariifolia. 'Arthur Menzies' is also listed as a hybrid of M. bealie × M. lomariifolia. M. japonica and M. beali are "scarcely distinct" (Huxely, 1992). Some authorities list 'Beali' as a cultivar of M. japonica (Hillier Nurseries, 1998).
- Arthur Menzies: after Arthur L. Menzies, Supervisor of Plant Accessions at Strybing Arboretum, San Francisco, he sent seeds from the cross to the Washington Park Arboretum.