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| scientific name | common name(s) | image gallery |
| Desmanthus illinoensis | Illinois bundleflower Bundleflower Prairie bundle flower Prickleweed Illinois Desmanthus Prairie mimosa | |
| Dichondra argentea | Silver Ponyfoot Silver ponysfoot | |
| Digitaria californica | Arizona cottontop California cottontop California crab grass Cottontop | |
| Diospyros texana | Texas persimmon Mexican persimmon Black persimmon Chapote Chapote prieto | |
| Echinacea angustifolia | Black Sampson Black Samson echinacea Narrow-leaf Coneflower | |
| Elymus canadensis | Canada wild rye Canadian wildrye Prairie wildrye Nodding wildrye | |
| Elymus elymoides ssp. brevifolius | Squirreltail Long-leaf squirrel-tail | |
| Ephedra antisyphilitica | Mormon tea Joint-fir Clapweed Popote | |
| Epipactis gigantea | Chatterbox Orchid Giant Hellebore Stream orchid | |
| Equisetum hyemale var. affine | Scouringrush horsetail | |
| Eriogonum annuum | Annual buckwheat Wild Buckwheat | |
| Eragrostis intermedia | Plains lovegrass Plains Lovegrass | |
| Eryngium leavenworthii | Leavenworth's eryngo Eryngo | |
| Eriogonum multiflorum | Wild buckwheat Heartsepal buckwheat Heart-sepal wild buckwheat | |
| Erioneuron pilosum | Hairy woollygrass Hairy tridens | |
| Eriochloa sericea | Texas cupgrass | |
| Euphorbia antisyphilitica | Candelilla Wax plant | |
| Eucnide bartonioides | Rock-nettle Yellow rocknettle Yellow stingbush | |
| Euphorbia cyathophora | Wild Poinsettia Poinsettia Fire on the Mountain | |
| Euphorbia marginata | Snow on the mountain Snow-on-the-mountain | |
| Eysenhardtia texana | Texas kidneywood Kidneywood Bee-Brush Vara dulce | |
| Fallugia paradoxa | Apache plume Ponil | |
| Forestiera pubescens var. pubescens | Stretchberry Elbowbush Stretch-berry Downy forestiera Desert olive Elbow-bush | |
| Fouquieria splendens | Ocotillo Devil’s walking stick Candlewood | |
| Fraxinus albicans | Texas Ash | |
| Fraxinus americana | White ash | |
| Fraxinus berlandieriana | Mexican ash Fresno Berlandier ash | |
| Fraxinus greggii | Gregg's ash Littleleaf ash Escobilla | |
| Funastrum cynanchoides | Fringed twinevine Climbing milkweed vine Twine-vine | |
| Funastrum cynanchoides ssp. heterophyllum | Hartweg's twinevine Vine milkweed | |
| Gaillardia pulchella | Firewheel Indian Blanket | |
| Gaillardia suavis | Perfumeballs Pincushion daisy Fragrant gaillardia Rayless gaillardia | |
| Geum canadense | White avens | |
| Glandularia bipinnatifida var. bipinnatifida | Prairie verbena Purple prairie verbena Dakota mock vervain Dakota vervain | |
| Glandularia canadensis | Rose vervain Sweet william Rose mock vervain | |
| Gleditsia triacanthos | Honey locust Common Honey-locust Honey-locust Thornless common honey-locust Honey shucks | |
| Guaiacum angustifolium | Texas lignum-vitae Guayacan Soapbush | |
| Gutierrezia sarothrae | Broom snakeweed Kindlingweed Matchbrush Texas snakeweed Broomweed Turpentine weed | |
| Hamamelis virginiana | Witch hazel American witch hazel | |
| Helenium amarum | Yellow Sneezeweed Bitterweed Yellow bitterweed Yellowdicks Slender-leaved sneezeweed Fine-leaved sneezweed Yellow dog-fennel | |
| Heteropogon contortus | Tanglehead | |
| Heliotropium curassavicum | Salt heliotrope Seaside heliotrope Quail plant Cola de mico | |
| Helianthus maximiliani | Maximilian sunflower Max sunflower | |
| Hesperaloe parviflora | Red yucca Coral yucca Red flowered false yucca Redflower false yucca Samandoque Yellow yucca | |
| Helianthus petiolaris | Prairie sunflower Plains sunflower | |
| Heliotropium tenellum | Pasture heliotrope White heliotrope | |
| Hilaria belangeri var. belangeri | Curly-mesquite | |
| Hibiscus laevis | Halberdleaf rosemallow Halberdleaf hibiscus Scarlet rose mallow | |
| Hymenocallis liriosme | Spider Lily Spring Spider Lily Spring spiderlily | |
| Ibervillea lindheimeri | Lindheimer's globeberry Balsam gourd Globe berry Snake apple | |
| Ilex decidua | Possumhaw Possumhaw Holly Deciduous Holly Winterberry Deciduous yaupon | |
| Ilex vomitoria | Yaupon Yaupon holly Cassina | |
| Ipomoea leptophylla | Bush morning-glory | |
| Ipomopsis rubra | Standing cypress Texas plume Red Texas star Red gilia | |
| Juniperus ashei | Ashe juniper Ashe's juniper Mountain cedar Blueberry juniper | |
| Juglans microcarpa | Little walnut Nogalito Texas walnut Texas black walnut River walnut | |
| Juglans nigra | Black walnut Eastern black walnut | |
| Justicia pilosella | Gregg's tubetongue Hairy Tube-tongue False Honeysuckle | |
| Karwinskia humboldtiana | Coyotillo Humboldt coyotillo | |
| Lesquerella fendleri | Fendler's bladderpod Fendler’s bladderpod Popweed | |
| Leucophyllum frutescens | Cenizo Purple sage Texas ranger Texas barometer bush Texas silverleaf Texas sage | |
| Lepidium montanum | Mountain peppergrass Western peppergrass Mountain pepperweed Mountain pepperwort Montana pepperweed | |
| Leucaena retusa | Goldenball leadtree Littleleaf leadtree | |
| Linum berlandieri var. berlandieri | Berlandier's yellow flax Yellow Flax Stiff-stem flax | |
| Linum hudsonioides | Hudson Flax Texas flax Yellow Flax | |
| Lithospermum incisum | Narrowleaf stoneseed Puccoon Fringed puccoon Narrowleaf gromwell Fringed gromwell Narrow-leaved puccoon | |
| Linum lewisii var. lewisii | Blue flax Prairie flax | |
| Liatris mucronata | Cusp gayfeather Gayfeather Blazing star Narrow-leaf gayfeather Texas gayfeather Cusp blazing star | |
| Linum pratense | Meadow flax | |
| Liatris punctata | Dotted blazing star Dotted gayfeather | |
| Lindheimera texana | Texas yellowstar Texas star Lindheimer daisy Texas yellow star | |
| Lonicera albiflora | Western white honeysuckle Texas honeysuckle White honeysuckle White shrub honeysuckle White limestone honeysuckle | |
| Lobelia cardinalis | Cardinal flower | |
| Lupinus subcarnosus | Sandyland bluebonnet Texas bluebonnet | |
| Lupinus texensis | Texas bluebonnet Bluebonnet Texas lupine Buffalo clover Wolf-flower | |
| Maurandella antirrhiniflora | Snapdragon Vine Roving sailor Climbing snapdragon Little snapdragon vine | |
| Marshallia caespitosa | Barbara's-buttons Puffballs White Barbara’s-buttons | |
| Plateau rocktrumpet Longtube trumpet flower Flor de San Juan Rock trumpet | ||
| Marsilea vestita | Hairy water clover Water clover | |
| Melampodium leucanthum | Blackfoot Daisy Rock daisy Plains blackfoot | |
| Menodora longiflora | Showy menodora Twin-pod | |
| Melica nitens | Three-flower melic Tall melicgrass Threeflower melicgrass Melicgrass | |
| Mimosa borealis | Fragrant mimosa Pink Mimosa | |
| Monarda citriodora | Lemon beebalm Horsemint Purple horsemint Lemon mint Plains horsemint Lemon horsemint | |
| Morus microphylla | Littleleaf mulberry Mountain mulberry Texas mulberry | |
| Monarda punctata | Spotted beebalm Spotted horsemint Horsemint | |
| Morus rubra | Red mulberry Moral | |
| Muhlenbergia lindheimeri | Lindheimer's muhly Big muhly Lindheimer muhly | |
| Muhlenbergia reverchonii | Seep muhly | |
| Muhlenbergia torreyi | Ring muhly Torrey muhly | |
| Nemastylis geminiflora | Prairie celestials Celestials Prairie pleatleaf | |
| Nolina lindheimeriana | Devil's shoestring Devil’s-shoestring Ribbon grass | |
| Nolina texana | Texas sacahuista Texas beargrass Basket grass Sacahuista Bunchgrass | |
| Nuphar lutea | Yellow pond-lily Cow lily Spatter dock Yellow cow lily | |
| Nuphar lutea ssp. advena | Common spatterdock Yellow cow lily Yellow pond lily Spatterdock | |
| Nuttallanthus texanus | Texas Toad-Flax Texas toadflax Toadflax | |
| Oenothera macrocarpa | Bigfruit evening-primrose Missouri evening-primrose Fluttermill Big-fruit evening-primrose Missouri Primrose | |
| Oenothera rhombipetala | Diamond petal primrose Four-Point Evening Primrose Fourpoint evening-primrose Greater four-point evening-primrose | |
| Oenothera speciosa | Pink evening primrose Showy evening primrose Mexican evening primrose Showy primrose Pink ladies Buttercups Pink buttercups | |
| Onoclea sensibilis | Sensitive fern Bead fern Sympathy fern | |
| scientific name | common name(s) | image gallery |