Actually I have found not just desert type foliage but N3V's own home ground gum etc. trees are poorly represented in up to date trees for TRS2019. RMM has a few eucalyptus but there's not much else - most are relics from the 2004 era.
What we need (and this is definitely a gimmie pig thought) is something along the lines of David Drake's old arboretum collection which was various trees of all types and sizes, essentially the go to resource when building routes in versions up to TS2010.
It wouldn't be so bad either if the older trees were compatible with the new versions and didn't display that godawful transparency effect (same with bushes and grasses). I could quite happily continue to use the older trees when making a route, bearing in mind it's primarily the train driving experience through the wider landscape we are aiming for, if N3V plugged the hole in their code that causes the visual error.
yep, because i want my route to be available on the DLS as freeware, I had to replace a number of 2016 Tane based aspens which aren't transparent with others that are because these trees are payware and no longer available. I ended up using some birches which aren't native to that part of the country because they look similar and are more solid looking, The old trees were very good at one point, now, not so hot if they are silhouetted against the sky. it now wont look anywhere near as good as it did. I cannot understand why NV3 don't negotiate with creators to update these items so they can continue in game ,surely it would be cheaper to pay them to update then to employ someone to do it.