Levetin E, Buck P
Ann Allergy. 1986 Apr;56(4):295-9.
Over the past five winters atmospheric Juniperus (cedar) pollen was collected in December and January in Tulsa, Oklahoma. Evidence from phenology, wind patterns, and plant distribution indicate that this pollen is from Juniperus ashei (mountain cedar) populations in south central Oklahoma and possibly Texas. The presence of this highly allergenic pollen in the Tulsa atmosphere indicates the potential for allergy problems among sensitive individuals in northeast Oklahoma.