'William Penn' Barberry

'William Penn' Barberry

Berberis x gladwynensis 'William Penn'

Berberidaceae (Barberry Family)

▲ shrub

▲ new twig showing long thorns and elongated, spiny-margined leaves

Location on campus: at northeast corner of Greenwood Lab School, south side of Harrison St.

Berberis x gladwynenesis ‘William Penn:’ ‘William Penn’ Barberry

• leaves evergreen, simple, alternate, lanceolate leaves with spined margins
• leaves 1-2" long and about 1/3 as wide; leaves appear in clusters at nodes, but are not whorled, are alternate
• upper leaf surfaces somewhat textured, but glabrous
• pairs of long thorns (1-1.5" long) at nodes
• height and width 3-5'
• flowers not significant
• prefers full sun, and tolerant of many soil types
• slow to medium growth rate