Black Willow
Pine
Reed Canary Grass
Juniper

Forest

American Sycamore

American Sycamore

Genus/Species
Platanus occidentalis

Common Names
Sycamore, Buttonwood, Buttonball, Plane Tree

Allergenicity
Medium

Careless Weed

Black Willow

Genus/Species
Salix nigra

Common Names
Willow

Allergenicity
Low

Boxelder

Boxelder

Genus/Species
Acer negundo

Common Names
Boxelder, Cutleaved Maple, Ash-Leaf Maple, Water Ash

Allergenicity
High

Russian Thistle

Juniper

Genus/Species
Juniperus communis L.

Common Names
Common Juniper

Allergenicity
High

Mountain Cedar

Mountain Cedar

Genus/Species
Juniperus ashei

Common Names
Mountain Cedar, Ashe Juniper, Rock Cedar, Mexican Junipar, Texas Cedar

Allergenicity
High

Pigweed

Nettle

Genus/Species
Urtica dioica

Common Names
Stinging Nettle

Allergenicity
Medium

Pecan

Paper Birch

Genus/Species
Betula papyrifera

Common Names
Paper Birch, White Birch, Canoe Birch

Allergenicity
Medium

Pecan

Pecan

Genus/Species
Hicoria pecan

Common Names
Pecan

Allergenicity
High

Kochia

Pine

Genus/Species
Pinus ponderosa, contorta

Common Names
Pine

Allergenicity
Low

Red Alder

Red Alder

Genus/Species
Alnus rubra (oregona)

Common Names
Pacific Coast Alder, Oregon Alder, Western Alder

Allergenicity
High

Mesquite

Reed Canary Grass

Genus/Species
Phalaris arundinacea

Common Names
Reed Canary

Allergenicity
Medium

Sugar Maple

Sugar Maple

Genus/Species
Acer saccharum

Common Names
Sugar Maple, Rock Maple, Hard Maple

Allergenicity
High

White Ash

White Ash

Genus/Species
Fraxinus americana

Common Names
White Ash, Biltmore Ash, Biltmore White Ash

Allergenicity
High