Dryopteris expansa Plant Data Family Name: Dryopteridaceae Common Name: northwest wood fern Other Name(s): Dryopteris expansa Hardiness Zones: Zone 4: (-34 to -29 C) Plant Code: drex Leaf Form: Compound, Fern-like, Leaf Arrangement: Basal, Leaf Shape: Ovate, PlantSomething BC Garden Centre Listings No members have selected this plant.