Cross Timbers
This EPA Level III ecoregion encompasses all or part of 35 Texas counties. With most of this ecoregion occurring in a swath from central Texas north, its northern reaches extend into southeastern Oklahoma. In Texas, this ecoregion covers approximately the same land area as the Texas Parks & Wildlife Department’s Cross Timbers and Prairies vegetative region. This collection lists only those taxa found in the Texas portion of the Cross Timbers ecoregion.Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
scientific name | common name(s) | image gallery |
Oenothera xerogaura | Drummond's Beeblossom Drummond's Gaura | |
Oligoneuron nitidum | Shiny Goldenrod | |
Oligoneuron rigidum | Stiff Goldenrod Hard-leaf Goldenrod | |
Oligoneuron rigidum var. rigidum | Stiff Goldenrod | |
Onosmodium bejariense | Soft-hair Marbleseed | |
Onosmodium bejariense var. bejariense | Soft-hair Marbleseed False Gromwell | |
Onosmodium bejariense var. occidentale | Western Marbleseed | |
Onosmodium helleri | Heller's Marbleseed Marble-seed | |
Onoclea sensibilis | Sensitive Fern Bead Fern Sympathy Fern | |
Ophioglossum crotalophoroides | Bulbous Adder's-tongue | |
Ophioglossum crotalophoroides var. crotalophoroides | Bulbous Adder's-tongue | |
Ophioglossum engelmannii | Limestone Adder's-tongue Limestone Adderstongue | |
Opuntia engelmannii | Cactus Apple Prickly Pear | |
Opuntia engelmannii var. lindheimeri | Texas Prickly Pear Lindheimer's Prickly Pear Lindheimer Prickly Pear | |
Oplismenus hirtellus | Basketgrass | |
Oplismenus hirtellus ssp. setarius | Basketgrass | |
Opuntia humifusa | Low Prickly Pear Smooth Prickly Pear Devil's Tongue | |
Opuntia macrorhiza | Bigroot Prickly Pear Twist-spine Prickly Pear Common Prickly Pear Plains Prickly Pear | |
Opuntia phaeacantha | Tulip Prickly Pear Brownspine Prickly Pear Cactus Purple-fruited Prickly Pear Brown-spined Prickly Pear New Mexico Prickly Pear Desert Prickly Pear | |
Ophioglossum vulgatum | Southern Adder's-tongue Adder's-tongue Adder's-tongue Fern | |
Orobanche ludoviciana | Louisiana Broomrape | |
Orobanche ludoviciana ssp. multiflora | Manyflower Broomrape | |
Osmorhiza longistylis | Longstyle Sweetroot Aniseroot Sweet-cicely Wild Licorice | |
Ostrya virginiana | Eastern Hop-hornbeam American Hop-hornbeam Woolly Hop-hornbean Eastern Ironwood Roughbark Ironwood Ironwood Deerwood Leverwood | |
Oxalis albicans | Radishroot Woodsorrel | |
Oxalis dillenii | Slender Yellow Wood Sorrel Yellow Wood Sorrel Yellow Woodsorrel | |
Oxalis drummondii | Drummond's Wood-sorrel Large-leaf Wood-sorrel Drummond's Woodsorrel | |
Oxytropis lambertii | Purple Locoweed | |
Oxalis stricta | Common Yellow Oxalis Yellow Wood-sorrel Upright Yellow Wood-sorrel Yellow Woodsorrel | |
Oxalis violacea | Violet Woodsorrel Violet Wood-sorrel | |
Parkinsonia aculeata | Retama Paloverde Mexican Paloverde Jerusalem Thorn Horsebean Lluvia De Oro | |
Passiflora affinis | Bracted Passionflower Passion Flower | |
Panicum anceps | Beaked Panicgrass Beaked Panic Grass | |
Pappophorum bicolor | Pink Pappasgrass Pink Pappusgrass | |
Palafoxia callosa | Small Palafox Small Palafoxia | |
Panicum capillare | Witchgrass | |
Parthenium confertum | Gray's Feverfew | |
Panicum dichotomiflorum | Fall Panicgrass Fall Panic Grass | |
Paspalum distichum | Knotgrass | |
Panicum diffusum | Spreading Witchgrass West Indian Panicgrass West Indian Panic Grass | |
Paspalum floridanum | Florida Paspalum | |
Paspalidium geminatum | Egyptian Panicgrass | |
Packera glabella | Butterweed Cress-leaf Groundsel Yellowtop | |
Panicum hallii | Hall's Panicgrass Hall's Panic Grass | |
Parthenocissus heptaphylla | Sevenleaf Creeper Seven-leaf Creeper | |
Passiflora incarnata | Maypop Purple Passionflower Purple Passion Vine Apricot Vine | |
Paronychia jamesii | James' Nailwort | |
Paspalum langei | Rustyseed Paspalum | |
Pavonia lasiopetala | Rock Rose Rose Pavonia Rose Mallow Pavonia | |
Paronychia lindheimeri | Forked Nailwort | |
Passiflora lutea | Yellow Passionflower Yellow Passion Vine Yellow Passion-flower | |
Panicum obtusum | Vine Mesquite | |
Packera obovata | Golden Groundsel Roundleaf Groundsel Roundleaf Ragwort | |
Parietaria pensylvanica | Pennsylvania Pellitory Pennsylvania Cucumber Plant | |
Panicum philadelphicum | Philadelphia Panicgrass Philadelphia Panic Grass | |
Packera plattensis | Prairie Groundsel Prairie Ragwort | |
Paspalum plicatulum | Brownseed Paspalum Brownseed Paspale | |
Paspalum pubiflorum | Hairyseed Paspalum | |
Parthenocissus quinquefolia | Virginia Creeper | |
Panicum rigidulum | Redtop Panicgrass Redtop Panic Grass | |
Palafoxia rosea | Rosy Palafox Rose Palafoxia | |
Palafoxia rosea var. macrolepis | Rosy Palafox | |
Pascopyrum smithii | Western Wheatgrass | |
Palafoxia sphacelata | Othake Sand Palafoxia | |
Packera tampicana | Yellowtop Great Plains Ragwort Butterweed | |
Passiflora tenuiloba | Birdwing Passionflower Slender-lobe Passionflower Spread Lobe Passionflower Bird Wing Passionflower | |
Panicum virgatum | Switchgrass Wand Panic Grass | |
Paronychia virginica | Whitlow-wort Broom Nailwort Yellow Nailwort Park's Nailwort | |
Parthenocissus vitacea | Woodbine Hiedra Creeper | |
Panicum virgatum var. virgatum | Switchgrass | |
Penstemon albidus | White Penstemon White Beardtongue Red-line Penstemon Red-line Beardtongue | |
Pectis angustifolia | Limoncillo Lemonscent Crownseed Pectis Lemon-scented Pectis Lemonscent Pectis Lemonweed Chinchweed Fetid Marigold | |
Pectis angustifolia var. fastigiata | Lemonscent | |
Pellaea atropurpurea | Purple Cliffbrake | |
Penstemon cobaea | Prairie Penstemon Prairie Beardtongue Foxglove Penstemon Foxglove Beardtongue False Foxglove Large-flowered Penstemon Large-flowered Beardtongue Cobaea Penstemon Cobaea Beardtongue Wild Foxglove | |
Pediomelum cuspidatum | Indian-turnip Largebract Indian Breadroot Tall Scurfy Pea Tall-bread Scurf-pea | |
Pediomelum cyphocalyx | Turniproot Wand Psoralea Turnip-root Scurf-pea | |
Penstemon digitalis | Mississippi Penstemon Mississippi Beardtongue Smooth White Penstemon Smooth White Beardtongue Talus Slope Penstemon Talus Slope Beardtongue Foxglove Penstemon Foxglove Beardtongue | |
Pediomelum digitatum | Palmleaf Indian Breadroot Palm-leaf Scurf-pea | |
Penstemon fendleri | Fendler's Penstemon Fendler's Beardtongue Fendler Penstemon Fendler Beardtongue Purple Foxglove | |
Penstemon grandiflorus | Large Penstemon Large Beardtongue Large-flower Penstemon Large-flower Beardtongue Large-flowered Penstemon Large-flowered Beardtongue | |
Penstemon guadalupensis | Guadalupe Penstemon Guadalupe Beardtongue White Penstemon White Beardtongue | |
Pediomelum hypogaeum | Subterranean Indian Breadroot Edible Scurf-pea Prairie-potato Pomme Blanche | |
Pediomelum hypogaeum var. hypogaeum | Subterranean Indian Breadroot Indian Breadroot Edible Scurf-pea | |
Pediomelum hypogaeum var. scaposum | Subterranean Indian Breadroot | |
Pediomelum hypogaeum var. subulatum | Subterranean Indian Breadroot | |
Penstemon laxiflorus | Nodding Penstemon Nodding Beardtongue Loose-flowered Penstemon Loose-flowered Beardtongue | |
Pediomelum latestipulatum | Texas Plains Indian Breadroot Scurfpea Scurf-pea | |
Pediomelum latestipulatum var. appressum | Texas Plains Indian Breadroot Scurfpea Scurf-pea | |
Pediomelum latestipulatum var. latestipulatum | Texas Plains Indian Breadroot Scurfpea Scurf-pea | |
Pediomelum linearifolium | Narrowleaf Indian Breadroot Narrow-leaf Scurf-pea | |
Perityle lindheimeri | Lindheimer's Rockdaisy Rock Daisy | |
Penstemon murrayanus | Scarlet Penstemon Scarlet Beardtongue Red Penstemon Red Beardtongue Cupleaf Penstemon Cupleaf Beardtongue | |
Pellaea ovata | Ovateleaf Cliffbrake Ovate-leaf Cliffbrake | |
Pediomelum rhombifolium | Gulf Indian Breadroot Brown-flowered Psoralea Round-leaf Scurf-pea | |
Penthorum sedoides | Ditch Stonecrop | |
Penstemon triflorus | Hill Country Penstemon Hill Country Beardtongue Scarlet Penstemon Scarlet Beardtongue Heller's Penstemon Heller's Beardtongue | |
Penstemon triflorus ssp. integrifolius | Heller's Penstemon Heller's Beardtongue | |
Penstemon triflorus ssp. triflorus | Heller's Penstemon Heller's Beardtongue | |
Penstemon tubaeflorus | White Wand Penstemon White Wand Beardtongue | |
scientific name | common name(s) | image gallery |