| Scientific Name | Philadelphus lewisii Pursh |
| Family | Hydrangeaceae |
| Common Names | Columbian mock orange, Lewis’ mock orange, Piper’s mock orange, Zeller’s mock orange |
| Eastern Washington | Native |
| Conservation Status | |
| Notes |
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Along Hwy 20 W of Kettle Falls at Trout Lake Rd – Ferry Co., WA 
Along Hwy 20 W of Kettle Falls at Trout Lake Rd – Ferry Co., WA 
Along Hwy 20 W of Kettle Falls at Trout Lake Rd – Ferry Co., WA 
Along Hwy 20 W of Kettle Falls at Trout Lake Rd – Ferry Co., WA