| Arceuthobium | Host | Location | Distance to closest known naturally infested stands |
Reference |
|---|---|---|---|---|
| A. cyanocarpum | Pinus flexilis | Fort Collins, CO | 35 km | First report |
| A. divaricatum | Pinus edulis | Fort Collins, CO | 200 km | First report |
| Albuquerque, NM | 20 km | Hawksworth and Wiens 1972 | ||
| A. littorum | Pinus radiata | Berkeley, CA | 130 km | Offord 1964 |
| Stanford, CA | 85 km | Peirce 1905 | ||
| Hillsborough, CA | 100 km | Butler 1992 | ||
| A. microcarpum | Picea pungens | Alpine, AZ | 10 km | Hawksworth and Wiens 1972 |
| Springerville, AZ | 10 km | First report | ||
| A. pusillum | Picea glauca | Fort Gary, MB | 10 km | Thomas 1954 |
| Canada | ||||
| A. vaginatum subsp. cryptopodum |
Pinus ponderosa | Denver, CO | 15 km | Hawksworth and Wiens 1972 |
| Pueblo, CO | 30 km | J. Hoffman (personal communication) |
||