Authors: Ronen Gamil, Janis Napoli
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Families: 77
Genera: 154
Species: 253 (species rank)
Total Taxa: 255 (including subsp. and var.)
Acer rubrum - Red Maple
Acer saccharum - Sugar Maple
Aesculus parviflora - Bottlebrush Buckeye
Ailanthus altissima - Tree-of-Heaven
Amelanchier canadensis - Canadian Service-Berry
Aronia arbutifolia - red chokeberry
Aronia melanocarpa - Black Chokeberry
Asclepias incarnata - Swamp Milkweed
Asclepias verticillata - Whorled Milkweed
Asimina triloba - Common Pawpaw
Betula nigra - River Birch
Bidens aurea - tickseed
Bouteloua curtipendula - Side-Oats Grama
Carex appalachica - Appalachian Sedge
Carex pensylvanica - Pennsylvania Sedge
Carya tomentosa - Mockernut Hickory
Chamaecyparis pisifera - Sawara-Cyperus
Chionanthus virginicus - White Fringetree
Cladrastis kentukea - Kentucky Yellow-Wood
Clethra alnifolia - Coastal Sweet-Pepperbush
Conyza canadensis - Canadian Horseweed
Cornus florida - Flowering Dogwood
Cornus kousa - Kousa Dogwood
Cornus racemosa - Gray Dogwood
Danthonia spicata - Poverty Wild Oat Grass
Dennstaedtia punctilobula - Hay-Scented Fern
Echinochloa crus-galli - Large Barnyard Grass
Elytrigia repens - Creeping Wild Rye
Eurybia divaricata - White Wood-Aster
Fothergilla gardenii - Dwarf Witch-Alder
Hamamelis vernalis - Ozark Witch-Hazel
Ilex glabra - Inkberry
Ilex opaca - American Holly
Ilex verticillata - Common Winterberry
Itea virginica - Virginia Sweetspire
Larix decidua - European Larch
Lemna minor - Common Duckweed
Lemna minuta - Least Duckweed
Lindera benzoin - Northern Spicebush
Lobelia cardinalis - Cardinal-Flower
Ludwigia peploides - Floating Primrose-Willow
Melilotus albus - white sweet-clover
Mirabilis linearis - Narrow-Leaf Four-O'clock
Mirabilis longiflora - Sweet Four-O'clock
Mitracarpus breviflorus - White Girdlepod
Mollugo verticillata - Green Carpetweed
Monarda fistulosa - Oswego-Tea
Monnina wrightii - Blue Pygmy-Flower
Morus alba - White Mulberry
Muhlenbergia eludens - Gravel-Bar Muhly
Muhlenbergia fragilis - Delicate Muhly
Muhlenbergia gooddingii - Goodding's muhly
Muhlenbergia microsperma - Little-Seed Muhly
Muhlenbergia monticola - Slim-Leaf Muhly
Muhlenbergia pectinata - Comb-Top Muhly
Muhlenbergia repens - Creeping Muhly
Muhlenbergia sinuosa - Marshland Muhly
Myosurus minimus - Tiny Mousetail
Myriophyllum sibiricum - Siberian Water-Milfoil
Najas guadalupensis - Guadalupe Waternymph
Nama hispidum - Sandbells
Nolina microcarpa - Sacahuista Bear-Grass
Notholaena grayi - Gray's Cloak Fern
Notholaena lemmonii - Lemmon's Cloak Fern
Notholaena standleyi - Star Cloak Fern
Nuttallanthus texanus - Texas-Toadflax
Nymphoides peltata - Yellow Floatingheart
Nyssa sylvatica - Black Tupelo
Oenothera flava subsp. taraxacoides - yellow evening-primrose
Oenothera rosea - Rose Evening-Primrose
Ophioglossum engelmannii - Limestone Adder's-Tongue
Opuntia santa-rita - Santa Rita pricklypear
Oxalis stricta - Upright Yellow Wood-Sorrel
Pachysandra procumbens - Mountain-Spurge
Panicum sp. - panicgrass
Panicum hallii - Hall's Panic Grass
Panicum hirticaule - Mexican Panic Grass
Panicum obtusum - vine mesquite
Panicum virgatum - Wand Panic Grass
Parthenice mollis - Annual Monsterwort
Paspalum dilatatum - Golden Crown Grass
Paspalum distichum - Jointed Crown Grass
Pectis longipes - Long-Stalk Chinchweed
Pectis prostrata - Spreading Chinchweed
Pellaea wrightiana - Wright's Cliffbrake
Pennisetum ciliare - Buffel Fountain Grass
Penstemon digitalis - Foxglove Beardtongue
Penstemon parryi - Parry's Beardtongue
Perityle coronopifolia - Crow-Foot Rockdaisy
Persicaria lapathifolia - Dock-Leaf Smartweed
Phacelia arizonica - Arizona Scorpion-Weed
Phacelia corrugata - cleftleaf wildheiotrope
Phaseolus angustissimus - Narrow-Leaflet Bean
Phaseolus heterophyllus - Variable-Leaf Bush-Bean
Phaseolus ritensis - Santa Rita Mountain Bean
Physalis angulata - Cut-Leaf Ground-Cherry
Pinus discolor - Border Pinyon
Pinus engelmannii - Apache Pine
Pinus flexilis - Limber Pine
Pinus strobus - Eastern White Pine
Pinus thunbergii - Japanese Black Pine
Piptochaetium fimbriatum - Pinyon Spear Grass
Plantago patagonica - Woolly Plantain
Plantago virginica - Pale-Seed Plantain
Platanus occidentalis - American Sycamore
Polygala barbeyana - blue milkwort
Polygala obscura - velvetseed milkwort
Populus fremontii - Fremont cottonwood
Portulaca oleracea - Little-Hogweed
Portulaca suffrutescens - Shrubby Purslane
Pseudognaphalium canescens - Wright's Rabbit-Tobacco
Pseudognaphalium leucocephalum - White Rabbit-Tobacco
Pseudognaphalium stramineum - Cotton-Batting-Plant
Psilotum nudum - Whisk Fern
Psoralidium tenuiflorum - slimflower scurfpea
Pycnanthemum muticum - Clustered Mountain-Mint
Quercus alba - Northern White Oak
Quercus arizonica - Arizona White Oak
Quercus bicolor - Swamp White Oak
Quercus coccinea - Scarlet Oak
Quercus emoryi - Emory's Oak
Quercus hypoleucoides - Silver-Leaf Oak
Quercus imbricaria - Shingle Oak
Quercus oblongifolia - Mexican Blue Oak
Quercus prinus - Swamp Chestnut Oak
Quercus rubra - Northern Red Oak
Rhus aromatica - Fragrant Sumac
Rhus choriophylla - evergreen sumac
Rhynchosia edulis - Chihuahuan Snout-Bean
Rhynchosia texana - Texas Snout-Bean
Rivina humilis - Rougeplant
Rosa carolina - Carolina Rose
Rosa virginiana - Virginia Rose
Rubus discolor - Himalaya Blackberry
Rubus occidentalis - Black Raspberry
Rumex crispus - Curly Dock
Sageretia wrightii - Wright's Mock Buckthorn
Sagittaria longiloba - Long-Barb Arrowhead
Salix exigua - Narrow-Leaf Willow
Salix gooddingii - Goodding's Black Willow
Salix lasiolepis - Arroyo Willow
Salix taxifolia - Yew-Leaf Willow
Salsola tragus - Prickly Russian-Thistle
Salvia parryi - Parry's Sage
Salvia subincisa - Saw-Tooth Sage
Sambucus canadensis - Common Elderberry
Samolus floribundus - Water-Pimpernel
Schistophragma intermedia - Harlequin Spiralseed
Schizachyrium cirratum - Texas False Bluestem
Schizachyrium scoparium - Little False Bluestem
Schoenoplectus californicus - California Wood Club-Rush
Selaginella rupincola - Rock-Loving Spike-Moss
Setaria adhaerens - Adherent Bristle Grass
Setaria grisebachii - Grisebach's Bristle Grass
Setaria leucopila - Streambed Bristle Grass
Setaria liebmannii - Liebmann's Bristle Grass
Setaria macrostachya - Large-Spike Bristle Grass
Sida abutifolia - Spreading Fanpetals
Sida spinosa - Prickly Fanpetals
Sisymbrium irio - London Rocket
Solanum douglasii - Green-Spot Nightshade
Solanum elaeagnifolium - Silver-Leaf Nightshade
Solanum fendleri - Tigna-Potato
Solanum heterodoxum - melonleaf nightshade
Solanum lumholtzianum - Sonoran Nightshade
Solidago nemoralis - Gray Goldenrod
Sonchus asper - Spiny-Leaf Sow-Thistle
Sonchus oleraceus - Common Sow-Thistle
Sorghum halepense - Johnson Grass
Sphaeralcea fendleri - Thicket Globe-Mallow
Sporobolus wrightii - Wright's Dropseed
Stachys coccinea - Scarlet Hedge-Nettle
Stephanomeria pauciflora - Brown-Plume Wire-Lettuce
Symphyotrichum cordifolium - Common Blue American-Aster
Symphyotrichum expansum - southwestern annual saltmarsh aster
Symphyotrichum subulatum - Seaside American-Aster
Tagetes micrantha - Licorice Marigold
Talinum paniculatum - Spoon-Leaf Fameflower
Tamarix aphylla - Athel Tamarisk
Tephrosia tenella - red hoary-pea
Tephrosia thurberi - Thurber's Hoary-Pea
Tetramerium hispidum - Hairy Fournwort
Tetramerium nervosum - Hairy Fournwort
Tidestromia lanuginosa - Woolly Honeysweet
Tillandsia recurvata - Small Ball-Moss
Tithonia thurberi - Arizona Sunflower-Weed
Toxicodendron radicans - Eastern Poison Ivy
Toxicodendron rydbergii - Western Poison Ivy
Trachypogon secundus - Crinkle-Awn Grass
Trachypogon spicatus - Crinkle-Awn Grass
Tragia laciniata - Sonoita Noseburn
Urochloa arizonica - Arizona Liverseed Grass
Urochloa platyphylla - Broad-Leaf Liverseed Grass
Vaccinium corymbosum - Highbush Blueberry
Valeriana sorbifolia - Pineland Valerian
Verbena carolina - Carolina vervain
Verbena gracilis - Fort Huachuca Vervain
Verbena neomexicana - Hillside Vervain
Veronica peregrina subsp. xalapensis - hairy purslane speedwell
Viburnum dentatum - Southern Arrow-Wood
Viburnum lentago - Nanny-Berry
Viguiera cordifolia - Heart-Leaf Goldeneye
Viguiera dentata - Tooth-Leaf Goldeneye
Vitis arizonica - Canyon Grape
Vulpia octoflora var. octoflora - Eight-Flower Six-Weeks Grass
Woodsia cochisensis - Cochise Cliff Fern
Xanthisma gracile - Grass-Leaf Sleepy Daisy
Xanthium strumarium - Rough Cockleburr
Xanthocephalum gymnospermoides - San Pedro Matchweed
Zannichellia palustris - Horned-Pondweed
Zinnia grandiflora - Little Golden Zinnia
Zinnia peruviana - Peruvian Zinnia