Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
| scientific name | common name(s) | image gallery |
| Hedeoma drummondii | Drummond's false pennyroyal Limoncillo Mock Pennyroyal | |
| Helenium elegans | Pretty sneezeweed | |
| Helianthemum georgianum | Georgia frostweed Rockrose Georgia sunrose | |
| Hechtia glomerata | Guapilla | |
| Herbertia lahue | Prairie nymph Herbertia | |
| Helianthus maximiliani | Maximilian sunflower Max sunflower | |
| Helianthus praecox | Texas sunflower | |
| Heterotheca subaxillaris | Camphorweed Camphor Weed | |
| Hechtia texensis | Texas false agave Guapilla | |
| Heliotropium torreyi | Slimleaf heliotrope | |
| Hibiscus moscheutos | Crimsoneyed rosemallow Crimson-eyed rose-mallow Marshmallow hibiscus | |
| Hibiscus striatus | Striped rosemallow | |
| Hordeum pusillum | Little barley | |
| Hyptis alata | Clustered bushmint | |
| Hymenopappus artemisiifolius | Old plainsman Oldplainsman Woolly-white | |
| Hypericum crux-andreae | St. Peterswort | |
| Hymenopappus flavescens | Yellow plainsman Collegeflower | |
| Hypericum hypericoides | St. Andrew's Cross | |
| Hydrolea ovata | Blue Water Leaf Hairy Hydrolea Ovate false fiddleleaf | |
| Hymenopappus scabiosaeus | Carolina woollywhite Old Plainsman Woolly-White | |
| Ibervillea tenuisecta | Cutleaf Globe Berry Slimlobe globeberry | |
| Ilex coriacea | Large gallberry Bay-gall bush Ink-berry holly | |
| Ilex vomitoria | Yaupon Yaupon holly Cassina | |
| Indigofera lindheimeriana | Lindheimer's indigo | |
| Ipomoea cordatotriloba | Tievine Purple bindweed | |
| Ipomoea pes-caprae | Railroad vine Goat-foot morning glory Bayhops Beach morning glory | |
| Ipomopsis rubra | Standing cypress Texas plume Red Texas star Red gilia | |
| Iva angustifolia | Narrowleaf marshelder Narrow-leaf Sumpweed | |
| Jefea brevifolia | Shortleaf jefea | |
| Juniperus ashei | Ashe juniper Ashe's juniper Mountain cedar Blueberry juniper | |
| Juncus marginatus | Grassleaf rush Grass Leaf Rush | |
| Juniperus pinchotii | Pinchot's juniper Pinchot juniper Redberry juniper | |
| Juncus validus var. validus | Roundhead rush | |
| Kosteletzkya virginica | Virginia saltmarsh mallow Virginia fen-rose Seashore mallow Salt Marsh-mallow | |
| Kyllinga brevifolia | Shortleaf spikesedge | |
| Kyllinga odorata | Fragrant spikesedge | |
| Leavenworthia aurea var. texana | Golden gladecress Texas golden glade cress | |
| Leptochloa dubia | Green sprangletop | |
| Lesquerella grandiflora | Bigflower bladderpod | |
| Lesquerella pallida | White bladderpod | |
| Lepidium virginicum | Virginia peppergrass Virginia pepperweed Peppergrass Poor man's pepper | |
| Liatris acidota | Sharp blazing star | |
| Linum alatum | Winged flax | |
| Limnodea arkansana | Ozark grass Ozarkgrass | |
| Liatris elegans | Blazing star Gay feather Pink-scale gayfeather Pinkscale blazing star | |
| Linum hudsonioides | Hudson Flax Texas flax Yellow Flax | |
| Liatris mucronata | Cusp gayfeather Gayfeather Blazing star Narrow-leaf gayfeather Texas gayfeather Cusp blazing star | |
| Linum rupestre | Rock flax | |
| Lobelia appendiculata | Pale lobelia | |
| Lobelia cardinalis | Cardinal flower | |
| Lobelia fenestralis | Fringeleaf lobelia | |
| Ludwigia repens | Creeping primrose-willow Floating primrose-willow Water primrose | |
| Lupinus texensis | Texas bluebonnet Bluebonnet Texas lupine Buffalo clover Wolf-flower | |
| Lyonia mariana | Piedmont staggerbush Staggerbush | |
| Lycurus setosus | Bristly wolfstail | |
| Lygodesmia texana | Texas skeletonplant Texas skeleton weed Skeleton-plant Purple dandelion | |
| Maurandella antirrhiniflora | Snapdragon Vine Roving sailor Climbing snapdragon Little snapdragon vine | |
| Malvaviscus arboreus | Turkscap Wax mallow Bleeding hearts Mexican apple Manzanilla | |
| Malvastrum aurantiacum | Wright's false mallow | |
| Marshallia caespitosa | Barbara's-buttons Puffballs White Barbara’s-buttons | |
| Mammillaria heyderi | Little nipple cactus | |
| Matelea reticulata | Green milkweed vine Net vein milkvine Netted milkvine Pearl milkweed Vine | |
| Manfreda sileri | Siler's tuberose | |
| Mahonia swaseyi | Texas barberry Texas Oregon-grape | |
| Mahonia trifoliolata | Agarita Agarito Algerita Laredo mahonia Laredo Oregon-grape Trifoliate barberry | |
| Mentzelia albescens | Wavyleaf blazingstar | |
| Merremia dissecta | Alamo Vine Noyau vine Correhuela de las Doce | |
| Mentzelia oligosperma | Chickenthief Stick-leaf | |
| Mecardonia procumbens | Baby jump-up | |
| Melochia pyramidata | Broom-Wood Pyramid flower Pyramidflower | |
| Mimosa aculeaticarpa | Catclaw mimosa | |
| Minuartia drummondii | Drummond's stitchwort Sandwort | |
| Mimosa latidens | Kairn's sensitive-briar | |
| Mitreola petiolata | Lax hornpod | |
| Mimosa strigillosa | Powderpuff Sunshine mimosa Sensitive plant | |
| Morella cerifera | Wax myrtle Southern bayberry Candleberry | |
| Monarda citriodora | Lemon beebalm Horsemint Purple horsemint Lemon mint Plains horsemint Lemon horsemint | |
| Monarda clinopodia | White bergamot | |
| Nama havardii | Havard's fiddleleaf | |
| Nama jamaicense | Jamaicanweed | |
| Nassella leucotricha | Texas wintergrass Texas Speargrass Wintergrass | |
| Nerisyrenia camporum | Bicolor fanmustard Mesa Greggia | |
| Neolloydia conoidea | Chihuahuan beehive Cone cactus | |
| Nemastylis geminiflora | Prairie celestials Celestials Prairie pleatleaf | |
| Nerisyrenia linearifolia | White Sands fanmustard | |
| Neptunia lutea | Yellow puff Yellow-puff | |
| Neptunia pubescens | Tropical puff | |
| Nicotiana repanda | Fiddleleaf tobacco Fiddle-Leaf Tobacco | |
| Nothoscordum bivalve | Crow poison Crowpoison False garlic | |
| Nolina lindheimeriana | Devil's shoestring Devil’s-shoestring Ribbon grass | |
| Nuttallanthus texanus | Texas Toad-Flax Texas toadflax Toadflax | |
| Oenothera macrocarpa | Bigfruit evening-primrose Missouri evening-primrose Fluttermill Big-fruit evening-primrose Missouri Primrose | |
| Oenothera speciosa | Pink evening primrose Showy evening primrose Mexican evening primrose Showy primrose Pink ladies Buttercups Pink buttercups | |
| Onosmodium helleri | Heller's marbleseed Marble-seed | |
| Opuntia engelmannii | Cactus apple | |
| Opuntia humifusa | Devil's-tongue Low prickly pear Smooth prickly pear Prickly pear | |
| Opuntia strigil | Marblefruit pricklypear | |
| Ostrya virginiana | Eastern hop-hornbeam Hophornbeam Ironwood | |
| Oxalis dillenii | Slender yellow woodsorrel | |
| Parkinsonia aculeata | Retama Paloverde Mexican Palo Verde Jerusalem thorn Lluvia de Oro | |
| scientific name | common name(s) | image gallery |