Life … Plants Vascular Plants Monocots Palms, Bullanocks, and Allies Palms Royal Palm Royal Palm species 8,755 observations Royal Palm Roystonea regia Field notes Range United States Greener is more native, amber more introduced; paler is less certain. How this was decided Key traits Layer Trees Light Full sun Moisture Moist Plant type Perennial Tree From USDA PLANTS and the Lady Bird Johnson Wildflower Center. Close