Scientific Name: Frangula purshiana
Common Name: cascara
Family Name: Rhamnaceae
Origin: B.C. west of Cascades, U.S. - northwest
Hardiness Zone: Zone 7: (-18 to -12 °C)
Plant Type: Tree - deciduous
Mature Size: 10 - 15m x 5 - 7m (height x width)
Habit: Open, Spreading, Upright
Form: Oval - vertical
Texture: Medium
Landscape Uses: Attract birds, Fall interest, Forestry, Herb, Screening, Shade tree, Wetland - bogs, Wildlife food
Exposure: Part sun/part shade, Filtered shade, Deep shade
Soil or Media: Acidic, Humus rich, Well-drained
Leaves: Simple, Alternate, Heavily veined, Pinnate venation, Rugose, Oblong, Entire
Flowers: Flowers clustered, Green-yellow, May-Jun
Fruit: Drupe, Purple, Black, Aug-Sep
Key ID Features:
Deciduous tree; leaves alternate, most blades oblong, 7-14cm long x 4-6cm wide, margins mostly entire, major veins parallel and prominent (but indented on upper surface), dull, olive-green; Winter ID: twigs and buds with rust-coloured velvety pubescence; buds with no scales, 2-3mm long; terminal buds may look like rust-coloured praying hands, 6-12mm long; bark looks like snake skin.