Quick answer: 4 native plants for wet soil and rain gardens are native to Arizona, 4 with a live listing as of 15 Sep 2026.
4 species
- Cardinal flower Lobelia cardinalis · 37 states
- Desert marigold Baileya multiradiata · 4 states
- Quaking aspen Populus tremuloides · 24 states
- Rocky Mountain iris Iris missouriensis · 7 states