Sonoran Basin and Range

Scarlet Lobelia

Lobelia cardinalis

Tall Grama Grass

Bouteloua curtipendula

Blue Grama

Bouteloua gracilis

Horsetail Milkweed

Asclepias verticillata

Aromatic Sumac

Rhus aromatica

Canada Wild Rye

Elymus canadensis

California-poppy

Eschscholzia californica

Firewheel

Gaillardia pulchella

Wafer-ash

Ptelea trifoliata

California Wild Buckwheat

Eriogonum fasciculatum

Coastal Tidytips

Layia platyglossa

Deer Grass

Muhlenbergia rigens

Plains Blackfoot

Melampodium leucanthum

Solomon's-plume

Maianthemum racemosum

Fiddleneck

Phacelia tanacetifolia

Arroyo Lupine

Lupinus succulentus

White Sage

Salvia apiana

Showy Penstemon

Penstemon spectabilis

California Fuchsia

Epilobium canum

Black Sage

Salvia mellifera

Birchleaf Mountain Mahogany

Cercocarpus betuloides

Scarlet Bugler

Penstemon centranthifolius

Blue Thimble-flower

Gilia capitata

Blue Elderberry

Sambucus mexicana

Bigberry Manzanita

Arctostaphylos glauca

California Live Oak

Quercus agrifolia

Scarlet Monkeyflower

Erythranthe cardinalis

California Sycamore

Platanus racemosa

Cuneate Ceanothus

Ceanothus cuneatus

California Sagebrush

Artemisia californica

Hollyleaf Cherry

Prunus ilicifolia

Tomcat Clover

Trifolium willdenovii

Seep Monkeyflower

Erythranthe guttata

Desert Wishbone-bush

Mirabilis laevis

California-laurel

Umbellularia californica

Chia

Salvia columbariae

Skunkbush Sumac

Rhus trilobata

Tree-poppy

Dendromecon rigida

Blue Wild Rye

Elymus glaucus

Basin Sagebrush

Artemisia tridentata

Chick Lupine

Lupinus microcarpus

Mexican Rush

Juncus mexicanus

California Goldfields

Lasthenia californica

Catalina Nightshade

Solanum xanti

Canyon Live Oak

Quercus chrysolepis

Four-wing Saltbush

Atriplex canescens

Prairie Goldenrod

Solidago missouriensis

Sugar Sumac

Rhus ovata

Blue Elderberry

Sambucus nigra ssp. caerulea

Prairie Grass

Sporobolus cryptandrus

Snapdragon Penstemon

Keckiella antirrhinoides

Singleleaf Pinyon Pine

Pinus monophylla

California Fuchsia

Zauschneria californica

Emory's Globemallow

Sphaeralcea emoryi

Desert Milkweed

Asclepias erosa

White Sage

Krascheninnikovia lanata

Whitewhorl Lupine

Lupinus densiflorus

Hoary Tansyaster

Dieteria canescens

Baltic Rush

Juncus balticus

Sanddune Wallflower

Erysimum capitatum

Hairy Grama

Bouteloua hirsuta

Engelmann's Hedgehog Cactus

Echinocereus engelmannii

Iris-Leaved Rush

Juncus xiphioides

Southern Bush Monkeyflower

Diplacus longiflorus

Tufted Evening-primrose

Oenothera cespitosa

Arizona Cypress

Cupressus arizonica

Australian Saltbush

Atriplex semibaccata

Spreading Fleabane

Erigeron divergens

Indian Ricegrass

Achnatherum hymenoides

Paleface

Hibiscus denudatus

Sawatch Knotweed

Polygonum sawatchense

Japanese Privet

Ligustrum japonicum

Interior Rush

Juncus interior

Netleaf Oak

Quercus rugosa

California Satintail

Imperata brevifolia

Texas-mountain-laurel

Sophora secundiflora

Ragged Rockflower

Crossosoma bigelovii

New Mexico Pennyroyal

Hedeoma drummondii

Feather Pennisetum

Setaria parviflora

Torrey's Rush

Juncus torreyi

Fee'S Lipfern

Cheilanthes feei

Antelope-sage

Eriogonum jamesii

Purple Cliffbrake

Pellaea atropurpurea

White Tridens

Tridens albescens

Plains Love Grass

Eragrostis intermedia

Marsh Alkali Aster

Almutaster pauciflorus

Howard McMinn Manzanita

Arctostaphylos 'Howard McMinn'

Beardlip Penstemon

Penstemon barbatus

Spreading Bent

Agrostis stolonifera

Variegated-bract Blazingstar

Mentzelia montana

Scarlet Beeblossom

Gaura coccinea

Bush Muhly

Muhlenbergia porteri

Blue Dicks

Dichelostemma capitatum

Cut-Leaf Ironplant

Xanthisma spinulosum

Desert Gooseberry

Ribes velutinum

Prairie-Gentian

Eustoma exaltatum

Washerwoman

Alternanthera caracasana

Perennial Rockcress

Arabis perennans

Alkali Muhly

Muhlenbergia asperifolia

Narrowleaf Milkweed

Asclepias fascicularis

Utah Ash

Fraxinus anomala

Ray Hartman California Lilac

Ceanothus 'Ray Hartman'

Nodding Needlegrass

Nassella cernua

California Gilia

Gilia achilleifolia

White Four O'clock

Mirabilis albida

Thicket Globemallow

Sphaeralcea fendleri

Seaside Petunia

Petunia parviflora

Desert Almond

Prunus fasciculata

Sticky-leaf Rabbitbrush

Chrysothamnus viscidiflorus

Ponderosa Pine

Pinus ponderosa

Fendler'S Euphorbia

Euphorbia fendleri

Flaxflowered Ipomopsis

Ipomopsis longiflora

Purple Sand Verbena

Abronia angustifolia

Common Buttonbush

Cephalanthus occidentalis

Bastard Indigo-bush

Amorpha fruticosa

Canadian Elder

Sambucus canadensis

Rum Cherry

Prunus serotina

Fogfruit

Phyla nodiflora

Calliopsis

Coreopsis tinctoria

Louisiana Sagewort

Artemisia ludoviciana

Smooth Sumac

Rhus glabra

Lewis's Flax

Linum lewisii

Sunflower

Helianthus annuus

Ash-leaf Maple

Acer negundo

Common Woolly Sunflower

Eriophyllum lanatum

Broomsedge

Andropogon glomeratus

Hemp Dogbane

Apocynum cannabinum

California Figwort

Scrophularia californica

Purple Threeawn

Aristida purpurea

Apache-beads

Anemopsis californica

Clustered Field Sedge

Carex praegracilis

Hooker's Evening Primrose

Oenothera elata

Saltmarsh Fleabane

Pluchea odorata

Stream Orchid

Epipactis gigantea

Great Scouring-rush

Equisetum hyemale

Chamisa

Ericameria nauseosa

Cutgrass

Leersia oryzoides

Canby'S Bluegrass

Poa secunda

Alkali Sacaton

Sporobolus airoides

Red Willow

Salix laevigata

Cooper's-reed

Typha latifolia

American Licorice

Glycyrrhiza lepidota

Fremont's Cottonwood

Populus fremontii

Russian Tarragon

Artemisia dracunculus

Cuban-spinach

Claytonia perfoliata

Dotseed Plantain

Plantago erecta

Bracken

Pteridium aquilinum

Clammyweed

Polanisia dodecandra

Smooth Heliotrope

Heliotropium curassavicum

Pale Spikerush

Eleocharis macrostachya

Narrowleaf Willow

Salix exigua

Arrow-weed

Pluchea sericea

Hardstem Bulrush

Schoenoplectus acutus

Arroyo Willow

Salix lasiolepis

Great Bulrush

Schoenoplectus tabernaemontani

Prairie Gourd

Cucurbita foetidissima

Hairy Clover Fern

Marsilea vestita

Copper Globe-mallow

Sphaeralcea angustifolia

Rattlesnake-weed

Daucus pusillus

American Willowherb

Epilobium ciliatum

Golden Corydalis

Corydalis aurea

Western Prickly-pear

Opuntia macrorhiza

Chairmaker's-rush

Schoenoplectus pungens

Sweet Brome

Bromus carinatus

Coyote Gourd

Cucurbita palmata

Tall Flatsedge

Cyperus eragrostis

Creeping Spike-rush

Eleocharis palustris

Cliff Prickly-pear

Opuntia polyacantha

Bastard Toadflax

Comandra umbellata

Bush Seepweed

Suaeda nigra

Red Oat

Avena sativa

Salt Grass

Distichlis spicata

Scarlet Monkeyflower

Mimulus cardinalis

Old-witch Grass

Panicum capillare

Clasping Venus's-looking-glass

Triodanis perfoliata

Coast Fiddleneck

Amsinckia intermedia

Parry's Phacelia

Phacelia parryi

Carrot

Daucus carota

Toad Rush

Juncus bufonius

Spike Redtop

Agrostis exarata

Bottlebrush Squirreltail

Elymus elymoides

Common Fiddleneck

Amsinckia menziesii

Tansy-aster

Machaeranthera tanacetifolia

Smooth Scouring-rush

Equisetum laevigatum

Watercress

Nasturtium officinale

California Bulrush

Schoenoplectus californicus

Red-Root Flat Sedge

Cyperus erythrorhizos

Needle Grama

Bouteloua aristidoides

Thurber's Sandpaper Plant

Petalonyx thurberi

Christmas Cactus

Opuntia leptocaulis

Hoary Goosefoot

Chenopodium incanum

Silkcotton Purslane

Portulaca halimoides

Clammy Goosefoot

Dysphania pumilio

Alkali-mallow

Malvella leprosa

Broom Milkwort

Polygala scoparioides

Spotted Sandmat

Euphorbia maculata

Stiff Tumbleweed

Amaranthus albus

Alkali Buttercup

Ranunculus cymbalaria

Colbaga

Brassica rapa

Chingma-lantern

Abutilon theophrasti

Stinkgrass

Eragrostis cilianensis

Dallisgrass

Paspalum dilatatum

Desert Dicoria

Dicoria canescens

White-stem Evening-primrose

Oenothera albicaulis

Tumble Mustard

Sisymbrium altissimum

Cotton-batting-plant

Pseudognaphalium stramineum

Common Sandweed

Athysanus pusillus

Beaked-sandbur

Solanum rostratum

Carrot-fern

Conium maculatum

Rocketsalad

Eruca vesicaria

California-rape

Sinapis arvensis

Powell's Amaranth

Amaranthus powellii

Oval-leaf Knotweed

Polygonum arenastrum

Hairy-pod Pepperwort

Lepidium lasiocarpum

Milk Thistle

Lactuca serriola

Fat-hen

Atriplex prostrata

Cleavers

Galium aparine

Dirty-dora

Cyperus difformis

Seaside Brookweed

Samolus parviflorus

California Mustard

Guillenia lasiophylla

Pale Desert-thorn

Lycium pallidum

Smooth Cat's-ear

Hypochaeris glabra

Schott's Calico

Loeseliastrum schottii

Cushion Cryptantha

Cryptantha circumscissa

Carelessweed

Amaranthus palmeri

False Water-pepper

Persicaria hydropiperoides

Ridge-seed Spurge

Euphorbia glyptosperma

Lobeleaf Groundsel

Packera multilobata

Maiden Blue Eyed Mary

Collinsia parviflora

Broom-like Ragwort

Senecio spartioides

Paiute False Bindweed

Calystegia longipes

Black Mustard

Brassica nigra

Mojave Popcornflower

Plagiobothrys jonesii

Prairie-berry

Solanum elaeagnifolium

Rydberg's Poison-ivy

Toxicodendron rydbergii

Parish Spikerush

Eleocharis parishii

Marsh Parsley

Cyclospermum leptophyllum

Common Fireweed

Senecio vulgaris

Persian-lilac

Melia azedarach

Douglas-fir

Pseudotsuga menziesii

Hedge-parsley

Torilis nodosa

Parachute Plant

Atrichoseris platyphylla

Five-horn Smotherweed

Bassia hyssopifolia

Hoary Tansyaster

Machaeranthera canescens

Hooker's Bur Ragweed

Ambrosia acanthicarpa

Rocky Mountain Sage

Salvia reflexa

Prickly Russian Thistle

Salsola tragus

Sago Pondweed

Potamogeton pectinatus

Prairie Cup Grass

Eriochloa contracta

Wingpod Purslane

Portulaca umbraticola

Old-Field Three-Awn

Aristida oligantha

Desert Thorn-apple

Datura discolor

Disc Mayweed

Matricaria matricarioides

Texas-pea

Astragalus nuttallianus

Moth Combseed

Pectocarya setosa

Mountain Brome

Bromus marginatus

Cooper Popcornflower

Plagiobothrys collinus

Carolina Geranium

Geranium carolinianum

Pennsylvania Pellitory

Parietaria pensylvanica

Mojave Suncup

Camissonia campestris

Foetid Chamomile

Anthemis cotula

Common Purslane

Portulaca oleracea

Arizona Sycamore

Platanus wrightii

Water Star-grass

Heteranthera dubia

Arizona Brome

Bromus arizonicus

Green Dock

Rumex conglomeratus

Field Sandbur

Cenchrus incertus

Arizona Mousetail

Myosurus cupulatus

Desert Indian Paintbrush

Castilleja chromosa

Alkali Buttercup

Halerpestes cymbalaria

Cluster Broomrape

Orobanche fasciculata

Many-flower Standing-cypress

Ipomopsis multiflora

Tumbling-Ringwing

Cycloloma atriplicifolium

Knotgrass

Paspalum distichum

Fremont Pincushion

Chaenactis fremontii

Ground-cherry

Physalis pubescens

Duckweed

Lemna minor

Prostrate Sandmat

Euphorbia prostrata

Lesser Swine-cress

Coronopus didymus

Wild Onion

Asphodelus fistulosus

Short-point Flatsedge

Cyperus acuminatus

Balloon-cherry

Physalis angulata

Burningbush

Bassia scoparia

Sleepy Catchfly

Silene antirrhina

Texas Croton

Croton texensis

Wingnut Catseye

Cryptantha pterocarya

Earth-almond

Cyperus esculentus

Toothcup

Ammannia coccinea

Rough Milk Thistle

Sonchus asper

Hampshire-purslane

Ludwigia palustris

Prostrate Sandmat

Chamaesyce prostrata

London Rocket

Sisymbrium irio

Emory's Baccharis

Baccharis salicina

Little Bur-clover

Medicago minima

Cherry-stone Juniper

Juniperus monosperma

Red Natal Grass

Melinis repens

Plains Sunflower

Helianthus petiolaris

Common Chickweed

Stellaria media

Tansy Mustard

Descurainia sophia

Husk-tomato

Physalis philadelphica

Russian Mulberry

Morus alba

Horned Spurge

Euphorbia brachycera

Bitter Dock

Rumex obtusifolius

Rosy Gilia

Gilia sinuata

Bird'S-Eye

Anagallis arvensis

Annual Bluegrass

Poa annua

Annual-bristle Grass

Aristida adscensionis

Small-flowered Gaura

Oenothera curtiflora

Jumping Cholla

Cylindropuntia fulgida

Longleaf Pondweed

Potamogeton nodosus

Colorado Desert-marigold

Baileya pauciradiata

Canada Spikesedge

Eleocharis geniculata

Pelotazo

Abutilon incanum

Floating Pennywort

Hydrocotyle ranunculoides

Freckled Milkvetch

Astragalus lentiginosus

Fiddle Dock

Rumex pulcher

White Twinheads

Eclipta prostrata

Arizona Popcorn-flower

Plagiobothrys arizonicus

Necklaceweed

Veronica peregrina

Persian Speedwell

Veronica persica

Marine Naiad

Najas marina

Utah Juniper

Juniperus osteosperma

Swamp Sawgrass

Cladium mariscus

Spotted Sandmat

Chamaesyce maculata

Crested Anoda

Anoda cristata

Linseed

Linum usitatissimum

Hoary Bowlesia

Bowlesia incana

Horseweed

Conyza canadensis

Field Bindweed

Convolvulus arvensis

Nettleleaf Goosefoot

Chenopodium murale

Skeleton-weed

Eriogonum deflexum

Scarlet Gilia

Ipomopsis aggregata

Mucronate Sprangletop

Leptochloa panicea

Bristly Fiddleneck

Amsinckia tessellata

Roughpod Spurge

Euphorbia spathulata

Brown Beetle-grass

Diplachne fusca

Common Bittercress

Cardamine hirsuta

Japanese Poinsettia

Euphorbia heterophylla

Hoary Plantain

Plantago virginica

Californian Burr, Burweed, Cocklebur

Xanthium orientale

Variegated Artichoke

Silybum marianum

Roman-wormwood

Ambrosia artemisiifolia

Roundleaf Phacelia