Torr.
Hoary-leaf Whitethorn
| Province | Rank | Native |
|---|---|---|
| California | SNR | Yes |
| Area | Forest | Acres |
|---|---|---|
| Arroyo Seco | Angeles National Forest | 4,703 |
| Cajon | San Bernardino National Forest | 7,548 |
| Camuesa | Los Padres National Forest | 8,209 |
| Circle Mountain | San Bernardino National Forest | 6,375 |
| City Creek | San Bernardino National Forest | 9,997 |
| Coldwater | Cleveland National Forest | 8,402 |
| Cucamonga A | Angeles National Forest | 1,249 |
| Cucamonga B | San Bernardino National Forest | 11,933 |
| Cucamonga C | San Bernardino National Forest | 4,106 |
| Cutca Valley | Cleveland National Forest | 14,530 |
| Dry Lakes | Los Padres National Forest | 17,043 |
| Hixon Flat | San Bernardino National Forest | 8,095 |
| Juncal | Los Padres National Forest | 12,289 |
| Ladd | Cleveland National Forest | 5,300 |
| Magic Mountain | Angeles National Forest | 15,542 |
| Malduce Buckhorn | Los Padres National Forest | 14,177 |
| Matilija | Los Padres National Forest | 5,218 |
| Nordhoff | Los Padres National Forest | 12,031 |
| Raywood Flat B | San Bernardino National Forest | 11,373 |
| San Dimas | Angeles National Forest | 7,160 |
| San Gabriel Add | Angeles National Forest | 2,527 |
| San Mateo Canyon | Cleveland National Forest | 65 |
| San Sevaine | San Bernardino National Forest | 6,866 |
| Sawmill - Badlands | Los Padres National Forest | 51,362 |
| Sespe - Frazier | Los Padres National Forest | 106,910 |
| Sheep Mountain | Angeles National Forest | 21,098 |
| Strawberry Peak | Angeles National Forest | 7,245 |
| Trabuco | Cleveland National Forest | 23,341 |
| White Ledge | Los Padres National Forest | 18,632 |
| Wildhorse | Cleveland National Forest | 1,483 |