leylandi or monterey cypress?

leylandi or monterey cypress?

Observation - leylandi or monterey cypress? - UK and Ireland. Description: Quick photo of big tree at the bottom of our garden - I had assumed it was a leylandii cypress, but when we put in a planning query about cutting it down (it is not getting any smaller) there was a comment back that it was a Monterey Cypress. How do you t

Quick photo of big tree at the bottom of our garden - I had assumed it was a leylandii cypress, but when we put in a planning query about cutting it down (it is not getting any smaller) there was a comment back that it was a Monterey Cypress. How do you tell the difference and are Monterey Cypress of more conservation or biodiversity value than leylandii?