
All Specimens

American Elm
Genus/Species
Ulmus americana
Common Names
American Elm, White Elm
Allergenicity
Medium

American Sycamore
Genus/Species
Platanus occidentalis
Common Names
Sycamore, Buttonwood, Buttonball, Plane Tree
Allergenicity
Medium

Arizona Cypress
Genus/Species
Hesperocyparis arizonica
Common Names
Arizona Cypress, Arizona Rough Cypress, Rough-Bark Cypress, Smooth-Bark Cypress, Cedro
Allergenicity
High

Bermuda Grass
Genus/Species
Cynodon dactylon
Common Names
Bermuda Grass, Scutch Grass, Wire Grass , Bahama Grass, Devil Grass
Allergenicity
High

Black Willow
Genus/Species
Salix nigra
Common Names
Willow
Allergenicity
Low

Boxelder
Genus/Species
Acer negundo
Common Names
Boxelder, Cutleaved Maple, Ash-Leaf Maple, Water Ash
Allergenicity
High

Careless Weed
Genus/Species
Amaranthus palmeri
Common Names
Careless Weed, Palmer’s Amaranth
Allergenicity
High

Chinese Elm
Genus/Species
Ulmus parvifolia
Common Names
Chinese Elm, Lacebark Elm
Allergenicity
High

Common Cocklebur
Genus/Species
Xanthium strumarium
Common Names
Cocklebur, Pennsylvania Cocklebur, Clotbur
Allergenicity
Medium

Cattle
Genus/Species
Bos taurus
Common Names
Cow, Steer, Cattle
Allergenicity
Medium

Curly Dock
Genus/Species
Rumex crispus
Common Names
Curly Dock, Yellow Dock, Sour Dock, Narrow-leaved Dock
Allergenicity
Medium

Dog
Canis familiara
Common Names
Domestic Dog
Allergenicity
High

Eastern Cottonwood
Genus/Species
Populus deltoides
Common Names
Common Cottonwood, Eastern Cottonwood, Necklace Poplar
Allergenicity
High

English Plantain
Genus/Species
Plantago lanceolata
Common Names
English Plantain, Ribwort Plantain, Narrow-leaved Plantain, Buckhorn Plantain, Buck Plantain
Allergenicity
Medium

Giant Ragweed
Genus/Species
Ambrosia trifida
Common Names
Giant Ragweed, Tall Ragweed, Crownweed
Allergenicity
High

Goldenrod
Genus/Species
Solidago canadensis
Common Names
Goldenrod
Allergenicity
Low

Greasewood
Genus/Species
Sarcobatus vermiculatus
Common Names
Greasewood, Black Greasewood
Allergenicity
Low

Horse
Genus/Species
Equus caballus
Common Names
Horse
Allergenicity
Medium

Johnson Grass
Genus/Species
Sorghum halepense
Common Names
Johnson Grass, Egyptian Millet, Evergreen
Allergenicity
Medium

Juniper
Genus/Species
Juniperus communis L.
Common Names
Common Juniper
Allergenicity
High

Kentucky Bluegrass
Genus/Species
Poa pratensis
Common Names
Kentucky Bluegrass, June Grass, Common Meadow Grass
Allergenicity
High

Kochia
Genus/Species
Kochia scoparia ssp. scoparia
Common Names
Kochia, Burning Bush
Allergenicity
High

Lamb’s Quarters
Genus/Species
Chenopodium album (L .)
Common Names
Lamb’s Quarters, White Pigweed, White Goosefoot
Allergenicity
High

Live Oak
Genus/Species
Quercus virginiana Mill
Common Names
Virgnia Live Oak, Southern Live Oak, Southeastern Live Oak
Allergenicity
High

Meadow Fescue
Genus/Species
Festuca elatior
Common Names
Meadow Fescue, Tall Fescue, English Blue Grass, Dover Grass, Randall Grass, Evergreen Grass
Allergenicity
High

Mesquite
Genus/Species
Prosopis juliflora
Common Names
Mesquite
Allergenicity
Medium

Mountain Cedar
Genus/Species
Juniperus ashei
Common Names
Mountain Cedar, Ashe Juniper, Rock Cedar, Mexican Junipar, Texas Cedar
Allergenicity
High

Nettle
Genus/Species
Urtica dioica
Common Names
Stinging Nettle
Allergenicity
Medium

Orchard Grass
Genus/Species
Dactylis glomerata L.
Common Names
Orchard Grass
Allergenicity
High

Paper Birch
Genus/Species
Betula papyrifera
Common Names
Paper Birch, White Birch, Canoe Birch
Allergenicity
Medium

Pecan
Genus/Species
Hicoria pecan
Common Names
Pecan
Allergenicity
High

Pigweed
Genus/Species
Amaranthus retroflexus L.
Common Names
Red-Root Pigweed, Red-Root Amaranth
Allergenicity
High

Pine
Genus/Species
Pinus ponderosa, contorta
Common Names
Pine
Allergenicity
Low

Red Alder
Genus/Species
Alnus rubra (oregona)
Common Names
Pacific Coast Alder, Oregon Alder, Western Alder
Allergenicity
High

Red Cedar
Genus/Species
Juniperus virginiana
Common Names
Red Cedar, Eastern Red Cedar, Virginian Juniper, Eastern Juniper, Red Juniper
Allergenicity
High

Red Mulberry
Genus/Species
Morus rubra
Common Names
Red Mulberry, Mulberry
Allergenicity
High

Redtop
Genus/Species
Agrostis alba
Common Names
Redtop, Herd’s Grass, Creeping Bent Grass
Allergenicity
High

Reed Canary Grass
Genus/Species
Phalaris arundinacea
Common Names
Reed Canary
Allergenicity
Medium

Russian Thistle
Salsola kali
Common Names
Russian Thistle, Tumbleweed, Saltwort
Allergenicity
High

Sheep Sorrel
Genus/Species
Rumex acetosella
Common Names
Sheep Sorrel, Sorrel Dock, Field Sorrel, Red Sorrel, Wood Sorrel, Sour-weed
Allergenicity
Medium

Short Ragweed
Genus/Species
Ambrosia artemisiifolia
Common Names
Short Ragweed, Common Ragweed, Dwarf Ragweed
Allergenicity
High

Smooth Brome
Genus/Species
Bromus inermis
Common Names
Brome
Allergenicity
Medium

Sugar Maple
Genus/Species
Acer saccharum
Common Names
Sugar Maple, Rock Maple, Hard Maple
Allergenicity
High

Timothy
Genus/Species
Phleum pratense
Common Names
Timothy, Herd’s Grass
Allergenicity
High

Western Ragweed
Genus/Species
Ambrosia psilostachya
Common Names
Western Ragweed
Allergenicity
High

White Ash
Genus/Species
Fraxinus americana
Common Names
White Ash, Biltmore Ash, Biltmore White Ash
Allergenicity
High

Wild Oat
Genus/Species
Avena fatua
Common Names
Wild Oat
Allergenicity
Medium

Wingscale
Genus/Species
Atriplex canescens
Common Names
Wingscale, Shadscale, Four-winged Saltbrush, Chamiso, Chamiza
Allergenicity
High