Western Inhalant Panel

Allergen Comments
Trees
Acacia

Early Spring pollen. Showy yellow bloom. Often not a potent allergen.

Ash, White Mid to late Spring pollen. Strong cross-reactivity with Olive and Privet.
Birch, White Mid to late Spring pollen. Cross-reactive with Birch species and Alder.
Box Elder, Maple Mid Spring pollen. These are cross-reactive pollens.
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.
Eucalyptus Mid Spring pollen. Not typically a potent allergen.
Oak, White Mid to late Spring pollen. All oak species are highly cross-reactive.
Olive

Mid to late Spring pollen. Strong cross-reactivity with Ash and Privet pollens. Privet pollinates in the Summer.

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-reacts with Cottonwood, Aspen & Poplar.
Grasses
Bermuda Grass Late Spring to early Summer. Allergens differ from those of field grasses.
Kentucky Blue Grass

Late Spring to early Summer. Potent field grass. May pollinate longer in warmer climates.

Johnson Grass Late Spring to early Summer. Potent field grass.
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 Late Summer & Fall pollen.
Mugwort Fall pollen of the Sage group of weed pollens.
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

Fall pollen in the same group as Dock weed. Pollen counts peak with grass pollens (late Spring to early Summer).

Danders
Cat Common allergen, especially with indoor pets. Allergen persists indoors.
Dog Common allergen but less sensitizing than cat.
Cockroach Mix Dry insect debris. Correlated with inner city allergic asthma.
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.
Mite D. Farinae

Indoor allergen. Essentially the same as mite, D. Pteronyssinus.