A mature monkey puzzle in Chingford Park, Dunedin. Photos by Gillian Vine. : It's a puzzle

Monkey puzzle leaves have sharp tips. : It's a puzzle

As a monkey puzzle ages, old branches fall, creating patterns in the bark. : It's a puzzle

The dying canopy of this monkey puzzle in Roslyn is clearly seen as arborist Alvar Del Castillo works on its removal. Photos by Rosemarie Smith. : It's a puzzle

Otago Polytechnic arboriculture lecturer Alvar Del Castillo removing a monkey puzzle in Roslyn. : It's a puzzle