The slender erect perennial shrub typically grows to a height of 1 to 3 metres ( 3 to 10 ft ) .
The slender erect perennial shrub typically has angular branchlets with silver scales present on young growth .
The slender erect perennial shrub typically grows to a height of 1 to 3 metres ( 3 to 10 ft ) and has angular branchlets with silver scales present on young growth .