Northwest Inhalant Panel

Allergen Comments
Trees
Ash, White

Mid to late Spring pollen. Strong cross-reactivity with Olive and Privet pollen.

Birch / Alder Mix Mid to late Spring pollen. These tree pollens are highly cross-reactive.
Box Elder, Maple Mid Spring pollen. This is a Maple. All Maple species cross-react.
Cedar, Mountain Earliest Spring pollinator. Represents allergy to all Juniper and Cypress species.
Cottonwood, Black Early Spring pollen. May cross-react with Willow.
Elm Mix Most are early Spring pollinators but one variety is a Fall bloomer.
Oak Mix Mid to late Spring pollen. All Oak species are highly cross-reactive.
Pine Mix Early Spring pollen. Usually not a potent allergen. Pollen grains are large andheavy with few respirable pollens left in the air.
Privet Summer pollen. Closely related to Ash tree pollen.
Sycamore, American Early to mid-Spring pollen

Walnut / Hickory /

Pecan Mix

Mid Spring pollen. Highly cross-reactive allergens.
Willow, Arroyo Early to mid Spring pollen. Cross-reactivity with Cottonwood, Aspen & Poplar.
Weeds
Burningbush Late Summer & Fall pollen
Cocklebur Late Summer & Fall pollen. Related to ragweed
English Plantain Early Summer pollen. Often positive in grass sensitive patients
Lamb’s Quarters Fall pollen
Marshelder, Rough Late Summer & Fall pollen. Related to Ragweed
Nettle Spring through Fall pollen
Pigweed Late Summer & Fall pollen
Ragweed, False Fall pollen. Western variety of Ragweed
Ragweed, Western Fall pollen. Western variety of Ragweed
Russian Thistle Late Summer & Fall pollen
Sagebrush Mix Fall pollen of the Sage group of weed pollens
Shadscale Late Summer & Fall pollen
Sheep Sorrel Pollen counts peak with grass pollens (late Spring to early Summer).
Waterhemp Late Summer & Fall pollen of the Amaranthus sub-group of weeds
Danders
Cat Common allergen, especially with indoor pets. Allergens persist indoors
Dog Common allergen but less sensitizing than cat
Dust / Mites
Mite, D. Farinae Indoor allergen. Essentially the same as mite, D. Pteronyssinus.
Grass
Sweet Vernal Grass Potent field grass. Late Spring to early Summer.
Molds
Alternaria

Allergen is the windborne mold spore. Highly correlated with allergic asthma.

Aspergillus Predominantly Indoor allergen. Common black mold.
Candida Occasional reports of sensitivity.
Cladosprium Allergen is the windborne mold spore.
Penicillium

Predominantly Indoor allergen. Damp mold found in soils. Blue green mold can be seen on old bread.