Looks like the nurseries sell them in Vegas so I'm sure they are around you.not sure if i've every seen any here as landscape trees. but i'd love to cut some
https://www.moonvalleynurseries.com/trees/fast-growers/sissoo
They are mostly found around here in newer developments, they grow really fast, and often become too large for the yards they're in, so a lot get cut down.....