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Lawson Cypress or Western Red Cedar?


Clutchy
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On 28/02/2023 at 16:54, Clutchy said:

I always struggle to tell the difference, any ideas? My gut is normally Lawson. 

Any tips on differentiating? 

 

Absolutely, it's a cinch. You need to look at the foliage - they are completely different. OK, you could confuse them but once you've seen them both side by side you will wonder how you ever got them confused. However, not always present, look first for cones as that is even easier. Lawson's are small globular; WRC are more cylindrical typically open at the top. No cones, go onto the foliage. WRC are both flattened branch structure but also flattened twigs. Look at the smaller leaflets - they are only on one side pointing towards the branch tip.About Western Red Cedar - Tree Identification, Properties & Uses - Softwood  Species | naturally:wood

 

Lawson cypress. Not like that! Whilst the youngest leaves all appear on one side, further back there are more both ways. Leaflets not so obviously flattened. If the branching structure is not flat/planar then you are dealing with Leylandii (with less chance of cones).

Chamaecyparis lawsoniana 'Westermannii' / Westermann's Lawson cypress  | Conifer Trinomial | American Conifer Society

 

And remember Lawson's come in a whole variety of cultivars - some small, some large, some with only juvenile foliage, some with both. It's a highly variable mess but you shouldn't get any of them confused with WRC!

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3 hours ago, Jon Heuch said:

Absolutely, it's a cinch. You need to look at the foliage - they are completely different. OK, you could confuse them but once you've seen them both side by side you will wonder how you ever got them confused. However, not always present, look first for cones as that is even easier. Lawson's are small globular; WRC are more cylindrical typically open at the top. No cones, go onto the foliage. WRC are both flattened branch structure but also flattened twigs. Look at the smaller leaflets - they are only on one side pointing towards the branch tip.About Western Red Cedar - Tree Identification, Properties & Uses - Softwood  Species | naturally:wood

 

Lawson cypress. Not like that! Whilst the youngest leaves all appear on one side, further back there are more both ways. Leaflets not so obviously flattened. If the branching structure is not flat/planar then you are dealing with Leylandii (with less chance of cones).

Chamaecyparis lawsoniana 'Westermannii' / Westermann's Lawson cypress  | Conifer Trinomial | American Conifer Society

 

And remember Lawson's come in a whole variety of cultivars - some small, some large, some with only juvenile foliage, some with both. It's a highly variable mess but you shouldn't get any of them confused with WRC!

 

I won't mix them up again 😄

 

Thanks for the tips

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