Yarrow

Achillea millefolium

C

Prairie Agalinis

Agalinis heterophylla

C

Mud Plaintain

Alisma subcordatum

U

Wild Onion

Allium canadense

A

Amaranth

Amaranthus rudis

U

Western Ragweed

Ambrosia psilostachya

C

Giant Ragweed

Ambrosia trifida

A

Valley Redstem

Ammannia coccinea

C

Broomweed

Amphiachyris dracunculoides

C

Texas Bluestar

Amsonia tabernaemontana

U

Tenpetal Thimbleweed

Anemone berlandieri

C

Prickly Poppy

Argemone polyanthemos

R

Green-Dragon

Arisaema dracontium

R

Texas Milkweed

Asclepias texana

C

Butterfly Milkweed

Asclepias tuberose

R

Green Milkweed

Asclepias viridis

C

Drummond’s Aster

Aster drummondii

U

Heath Aster

Aster ericoides

C

Annual Aster

Aster subulatus

C

Western Daisy

Astranthium integrifolium

R

Water Fern

Azolla caroliniana

C

Water Hyssop

Bacopa monnieri

U

India Mustard

Brassica juncea

U*

False Boneset

Brickellia eupatorioides

U

Corn Gromwell

Buglossoides arvensis

C*

Wine Cup

Callirheo involucrate

C

Square-bud Sundrops

Calylophus berlandieri

R

Shepherd’s Purse

Capsella bursa-pastoris

U*

Nodding Thistle

Carduus nutans

U*

Indian Paintbrush

Castilleja indivisa

C

Basket Flower

Centaurea americana

C

Sticky Chickweed

Cerastium glomeratum

C

Partridge Pea

Chamaecrista fasciculata

A

Spotted Sandmat

Chamaescyce maculata

R

Small Matted Sandmat

Chamaesyce serpens

U

Hairy Golden Aster

Chrysopsis pilosa

U

Horrid Thistle

Cirsium horridulum

U

Texas Thistle

Cirsium texanum

C

Bull Nettle

Cnidoscolus texanus

C

Dayflower

Commelina erecta

C

Bindweed

Convolvulus arvensis

C*

Canada Horseweed

Conyza ramosissimum

R

Rain Lily

Cooperia drummondii

C

Plains Coreopsis

Coreopsis tinctoria

C

Smallflower Hawksbeard

Crepis pulchra

U*

Woolly Croton

Croton capitatus

C

Prairie Tea

Croton monanthogynus

C

Texas Croton

Croton texensis

C

Cuspidate Dodder

Cuscuta cuspidate

U

Showy Dodder

Cuscuta indecora

U

Queen Anne’s Lace

Daucus carota

C*

Illinois Bundleflower

Desmanthus illinoensis

C

Slenderlobe Bundleflower

Desmanthus leptolobus

U

Clasping Coneflower

Dracopis amplexicaulis

C

Tall Burhead

Echinodorus beteroi

U

Creeping Burhead

Echinodorus cordifolius

U

False Daisy

Eclipta prostrata

U

Egeria

Egeria densa

U*

Elodea

Elodea canadensis

U*

Engelmann’s Daisy

Engelmannia peristenia

U

Scouring Rush

Equisetum hyemale

U

Philadelphia Fleabane

Erigeron philadelphicus

U

Daisy Fleabane

Erigeron strigosus

C

Redstem Stork’s Bill

Erodium cicutarium

C*

Hooker’s Eryngo

Eryngium hookeri

C

Leavenworth’s Eryngo

Eryngium leavenworthii

C

Rattlesnake Master

Eryngium yuccifolium

U

Mistflower

Eupatorium coelestinum

U

Fall Boneset

Eupatorium serotinum

U

Snow-on-the-Prairie

Euphorbia bicolor

C

Toothed Spurge

Euphorbia dentata

C

Six-angle Spurge

Euphorbia hexagona

U

Texas Bluebell

Eustoma russellianum

U

Snake Cotton

Froelichia gracilis

U

Indian Blanket

Gaillardia pulchella

U

Bedstraw

Galium aparine

C

Velvetweed

Gaura parviflora

C

Roadside Gaura

Gaura suffulta

C

Carolina Geranium

Geranium carolinianum

U

Avens

Geum canadense

U

Prairie Verbena

Glandularia bipinnatifida

C

Little-head Gumweed

Grindelia adenodonta

C

Wax Goldenweed

Grindelia papposa

C

Drummond’s False Pennyroyal

Hedeoma drummondii

R

Prairie Bluets

Hedyotis nigricans

C

Yellowdicks

Helenium amarum

R

Common Sunflower

Helianthus annuus

A

Maximilian Sunflower

Helianthus maximiliani

C

Water Star-grass

Heteranthera dubia

U

Blue Mud-plantain

Heteranthera limosa

C

Camphorweed

Heterotheca subaxillaris

U

Halberd-leaf Hibiscus

Hibiscus laevis

U

Water Pennywort

Hydrocotyle umbellate

C

Carolina Woolly White

Hymenopappus scabiosaeus

U

Tievine

Ipomoea cordatotrilboa

C

Whitestar

Ipomoea lacunosa

U

Standing Cypress

Ipomopsis rubra

U

Sumpweed

Iva annuua

A

Waterwillow

Justicia americana

U

Warty Caltrop

Kallstroemia parviflora

U

Prickly Lettuce

Lactuca serriola

C*

Henbit

Lamium amplexicaule

C*

Rough Pea

Lathyrus hirsutus

C*

Duckweed

Lemna minor

C

Virginia Peppergrass

Lepidium virginicum

C

Lax Bladderpod

Lesquerella gracilis

R

Gayfeather

Liatris mucronata

C

Texas Yellowstar

Lindheimera texana

U

Fringed Puccoon

Lithospermum incisum

R

Cardinal Flower

Lobelia cardinalis

R

Water-primrose

Ludwigia peploides

C

Texas Bluebonnet

Lupinus texenis

U

Winged Lythrum

Lythrum alatum

R

Spotted Medic

Medicago Arabica

U*

Button Medic

Medicago orbicularis

C*

White Sweetclover

Melilotus alba

U*

Yellow Sweetclover

Melilotus officinalis

C*

Monarch Vine

Mikania scandens

C

Catclaw Sensitive Briar

Mimosa nuttallii

C

Four-o’Clock

Mirabilis linearis

U

Heart-leaf Four-o’Clock

Mirabilis nyctaginea

C

Lemon Mint

Monarda citriodora

C

Spotted Beebalm

Monarda punctata

U

Large-seed Forget-me-not

Myostis macrosperma

U

Parrotfeather

Myriophyllum aquaticum

U*

Eurasian Watermilfoil

Myriophyllum spicatum

U*

Southern Naiad

Najas guadalupensis

A

Water Lotus

Nelumbo lutea

C

Prairie Celestial

Nemastylis geminiflora

R

Yellow Puff

Neptunia lutea

U

Crow-Poison

Nothoscordum bivalve

C

Spatterdock

Nuphar luteum

U

White Water Lily

Nymphaea odorata

U

Cutleaf Evening Primrose

Oenothera laciniata

U

Fourpoint Evening Primrose

Oenothera rhombipetala

U

Showy Evening Primrose

Oenothera speciosa

C

Prickly Pear

Opuntia phaeacantha

C

Yellow Wood Sorrel

Oxalis stricta

C

Great Plains Ragwort

Packera tampicana

U

Santa Maria Feverfew

Parthenium hysterophorus

U

Passionflower

Passiflora incarnate

C

Blue-curls

Phaclia congesta

U

Mistletoe

Phoradendron tomentosum

C

Texas Frog Fruit

Phyla nodiflora

C

Cutleaf Ground Cherry

Physalis angulata

C

Common Ground Cherry

Physalis longifolia

U

Showy False Dragonhead

Physostegia pulchella

U

Bottle-brush Indian Wheat

Plantago aristata

U

Plantain

Plantago heterophylla

C

Woolly Plantain

Plantago patagonica

C

Redseed Plantain

Plantago rhodosperma

C

Marsh Fleabane

Pluchea odorata

C

Pickerelweed

Pontederia cordata

U

Little Hogweed

Porulaca oleracea

U*

Curlyleaf Pondweed

Potamogeton crispus

U*

American Pondweed

Potamogeton nodosus

C

Illinois Pondweed

Potamogeton illinoensis

C

Slender Pondweed

Potamogeton pusillus

C

Mock Bishop’s Weed

Ptilimnium nuttalli

C

Texas Dandelion

Pyrrhopappus pauciflorus

A

Little-leaf Buttercup

Ranunculus abortivus

U

Annual Bastard-cabbage

Rapistrum rugosum

C*

Mexican Hat

Ratibida columnifera

C

Pigeonberry

Ravina humilis

A

Watercress

Rorippa nasturtium-aquaticum

U*

Wild Rose

Rosa micrantha

C*

Dewberry

Rubus aboriginum

C

Brown-eyed Susan

Rudbeckia hirta

C

Limestone Wild Petunia

Ruellia strepens

U

Curly Dock

Rumex crispus

C*

Prairie Gentian

Sabatia campestris

U

Hooded Arrowhead

Sagittaria calycina

U

Arrowhead

Sagittaria latifolia

U

Bulltongue

Sagittaria graminea

A

Hudson Sagittaria

Sagittaria subulata

U

Blue Sage

Salvia azurea

U

Scarlet Sage

Salvia coccinea

U

Mealy Blue Sage

Salvia farinacea

U

Lizard’s Tail

Saururus cernuus

U

Shepherd’s Needle

Scandix pectin-veneris

C*

Common Groundsel

Senecio vulgaris

U

Rattlebox

Sesbania herbacea

C

Blue Field Madder

Sherardia arvensis

C*

Spreading Sida

Sida abutifolia

R

Compass Plant

Silphium laciniatum

U

Charlock Mustard

Sinapis arvensis

U*

Blue Eyed-Grass

Sisyrinchium angustifolium

C

Horse-nettle

Solanum carolinense

C

Nightshade

Solanum dimidiatum

C

Silverleaf Nightshade

Solanum elaeagnifolium

C

Buffalo Bur

Solanum rostratum

U

Canada Goldenrod

Solidago canadensis

A

Prickly Sow Thistle

Sonchus asper

C*

Common Sow Thistle

Sonchus oleraceus

U*

Scarlet Globe Mallow

Sphaeralcea coccinea

U

Lady’s Tresses Orchid

Spiranthes cernua

U

Duckmeat

Spirodela polyrhiza

U

Shade Betony

Stachys crenata

U

Common Chickweed

Stellaria media

C*

False Gaura

Stenosiphon linifolius

C

Trailing Wild Bean

Strophostyles helvula

C

Sago Pondweed

Stuckenia pectinatus

C

Common Dandelion

Taraxacum officinale

C*

Fine-leaf Greenthread

Thelesperma filifolium

U

Hedge Parsley

Torilis arvensis

C*

Knotted Hedge Parsley

Torilis nodosa

C*

Spiderwort

Tradescantia ohiensis

C

Goatsbeard

Tragopogon dubius

C*

Goat Head

Tribulus terrestris

U*

Large Hop-clover

Trifolium campestre

C*

Clasping Venus’ Looking-glass

Triodanis perfoliata

C

Southern Cattail

Typha domingensis

C

Broad-leaf Cattail

Typha latifolia

C

Bladderwort

Utricularia gibba

U

Beaked Cornsalad

Valerianella radiata

C

Eel-grass

Vallisneria Americana

U

Big Bract Verbena

Verbana bracteata

U

Texas Vervain

Verbena halei

C

Woolly Vervain

Verbena stricta

C

White Crownbeard

Verbesina virginica

U

Ironweed

Vernonia baldwinii

C

Persian Speedwell

Veronica persica

C*

Garden Vetch

Vicia sativa

C*

Johnny Jump-up

Viola bicolor

U

Cocklebur

Xanthium strumarium

C

Arkansas Yucca

Yucca arkansana

U

Horned Pondweed

Zannichellia palustris

C

 Ladybird's Centaury