Desert O'Piñon
Omono
I second this. Desert species in general, but specifically Piñon, Alligator Juniper, Desert Willow (Chilopsis linearis boasts beautiful flowers from late spring until frost; popular with hummingbirds), Bigtooth Maple (Acer grandidentatum is hard to find in any nurseries), Desert Ironwood (Olneya tesota also sports beautiful blossoms), One-seed Juniper (Juniperus monosperma), and Mexican Elderberry (Sambucus mexicana orSambucus cerulea has more visually subtle flowers, but great fragrance).My issue is that most of the traditional bonsai species can't be grown in my zone... I would love to get a nice Pinyon Pine (Pinus edulis)... So hard to dig however... and Alligator Juniper (Juniperus deppeana)
These are beautiful trees, but are not cultivated much for bonsai, I assume because of the difficulty of survival in climates where bonsai is more popular. But they have great characteristics for bonsai otherwise.