Special Collections
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 |
| Pellaea wrightiana | Wright's Cliffbrake Fern Wright's Cliffbrake | |
| Phyllanthus abnormis | Drummond's Leaf-flower | |
| Phytolacca americana | American Pokeweed Great Pokeweed Pokeweed Pokeberry Red Ink Plant Pigeonberry | |
| Physalis angulata | Cutleaf Groundcherry | |
| Physostegia angustifolia | Narrowleaf False Dragonhead False Dragon-head | |
| Phemeranthus aurantiacus | Orange Flameflower Flameflower Fameflower Talinum | |
| Phragmites australis | Common Reed Phragmites | |
| Phemeranthus calycinus | Largeflower Flameflower Largeflower Fameflower | |
| Phalaris caroliniana | Carolina Canarygrass Maygrass | |
| Phyllanthus caroliniensis | Carolina Leaf-flower | |
| Physalis cinerascens | Smallflower Groundcherry | |
| Physalis cinerascens var. cinerascens | Smallflower Groundcherry | |
| Phacelia congesta | Caterpillars Blue Curls Fiddleneck | |
| Phlox cuspidata | Pointed Phlox | |
| Phlox drummondii | Annual Phlox Drummond Phlox Pride-of-Texas Texas Pride | |
| Phlox drummondii ssp. drummondii | Annual Phlox | |
| Phlox drummondii ssp. mcallisteri | Mcallister's Phlox Drummond Phlox | |
| Physalis hederifolia | Ivyleaf Groundcherry Ivy-leaf Groundcherry | |
| Physalis heterophylla | Clammy Groundcherry | |
| Phacelia hirsuta | Fuzzy Phacelia | |
| Philadelphus inodorus | Scentless Mock Orange | |
| Physostegia intermedia | Spring Obedient Plant Marsh Obedient Plant Slender False Dragonhead Intermediate False Dragonhead | |
| Phyla lanceolata | Lanceleaf Frogfruit Lanceleaf Fogfruit | |
| Phryma leptostachya | American Lopseed Lopseed | |
| Physalis longifolia | Longleaf Groundcherry | |
| Physalis mollis | Field Groundcherry | |
| Phyla nodiflora | Texas Frogfruit Turkey Tangle Fogfruit Frogfruit | |
| Phemeranthus parviflorus | Sunbright Dwarf Flameflower Prairie Flameflower | |
| Phacelia patuliflora | Sand Phacelia Sand Scorpionweed Blue Phacelia | |
| Phacelia patuliflora var. patuliflora | Sand Phacelia | |
| Phlox pilosa | Downy Phlox Prairie Phlox Fragrant Phlox | |
| Phlox pilosa ssp. pilosa | Downy Phlox Prairie Phlox Fragrant Phlox | |
| Phacelia popei | Pope's Phacelia | |
| Phyllanthus polygonoides | Smartweed Leaf-flower Knotweed Leafflower | |
| Physalis pubescens | Husk Tomato Downy Ground-cherry Downy Groundcherry | |
| Physalis pumila | Dwarf Ground-cherry Yellow Ground-cherry | |
| Physostegia pulchella | Showy False Dragonhead Beautiful False Dragon-head | |
| Phlox roemeriana | Goldeneye Phlox Golden-eye Phlox | |
| Phacelia strictiflora | Prairie Phacelia | |
| Phoradendron tomentosum | Christmas Mistletoe Mistletoe Injerto | |
| Physalis virginiana | Virginia Groundcherry | |
| Physostegia virginiana | Fall Obedient Plant False Dragonhead Virginia Lions-heart | |
| Physostegia virginiana ssp. praemorsa | Obedient Plant Fall Obedient Plant Lionheart False Dragonhead | |
| Pilularia americana | American Pillwort | |
| Piptochaetium avenaceum | Blackseed Speargrass | |
| Pinus elliottii | Slash Pine | |
| Pityopsis graminifolia | Narrowleaf Silkgrass Golden Aster | |
| Pinaropappus roseus | White Rocklettuce White Dandelion Pink Dandelion White Rock Lettuce | |
| Pistia stratiotes | Water Lettuce | |
| Pinus taeda | Loblolly Pine Oldfield Pine Bull Pine Rosemary Pine | |
| Plantago aristata | Largebracted Plantain Buckthorn | |
| Pluchea camphorata | Camphor Pluchea Camphor Weed | |
| Plantago elongata | Prairie Plantain | |
| Plantago helleri | Heller's Plantain Cedar Plantain | |
| Plantago heterophylla | Slender Plantain | |
| Plantago hookeriana | California Plantain Tallow Weed | |
| Pleuraphis mutica | Tobosagrass Tobosa Grass | |
| Platanus occidentalis | American Sycamore Eastern Sycamore American Plane Tree Plane Tree Buttonwood Buttonball Tree | |
| Pluchea odorata | Sweetscent Saltmarsh Fleabane | |
| Pluchea odorata var. odorata | Sweetscent Marsh Fleabane Southern Marsh Fleabane | |
| Plantago patagonica | Woolly Plantain Bristle-bract Plantain | |
| Pleopeltis polypodioides | Resurrection Fern | |
| Pleopeltis polypodioides ssp. michauxiana | Resurrection Fern | |
| Plantago rhodosperma | Redseed Plantain Red-seeded Plantain | |
| Plantago rugelii | Blackseed Plantain Pale Plantain | |
| Plantago rugelii var. rugelii | Blackseed Plantain | |
| Plantago virginica | Virginia Plantain Paleseed Indian-wheat Dwarf Plantain Paleseed Plantain Hoary Plantain Southern Plantain | |
| Plantago wrightiana | Wright's Plantain | |
| Polygala alba | White Milkwort | |
| Polygonum amphibium | Water Knotweed Water Smartweed | |
| Polygonum amphibium var. emersum | Longroot Smartweed | |
| Poa arachnifera | Texas Bluegrass Texas Blue Grass | |
| Poa bigelovii | Bigelow's Bluegrass | |
| Polygonum buxiforme | Box Knotweed | |
| Pontederia cordata | Pickerelweed Pickerel Rush | |
| Populus deltoides | Eastern Cottonwood Carolina Poplar Necklace Poplar Alamo | |
| Populus deltoides ssp. deltoides | Eastern Cottonwood Southern Cottonwood Carolina Poplar Eastern Poplar Necklace Poplar Alamo | |
| Populus deltoides ssp. monilifera | Plains Cottonwood Great Plains Cottonwood Texas Cottonwood Northern Cottonwood | |
| Potamogeton diversifolius | Waterthread Pondweed Threadleaf Pondweed | |
| Polanisia dodecandra | Redwhisker Clammyweed Clammyweed | |
| Polanisia dodecandra ssp. trachysperma | Sandyseed Clammyweed Clammy-weed Clammyweed | |
| Polanisia erosa | Large Clammyweed | |
| Polanisia erosa ssp. erosa | Large Clammyweed | |
| Potamogeton foliosus | Leafy Pondweed | |
| Potamogeton foliosus ssp. foliosus | Leafy Pondweed | |
| Polygonum glabrum | Denseflower Knotweed | |
| Polygonum hydropiperoides | Swamp Smartweed | |
| Potamogeton illinoensis | Illinois Pondweed | |
| Polygala incarnata | Procession Flower Pink Milkwort | |
| Pomaria jamesii | James' Holdback James Rush-pea | |
| Polygonum lapathifolium | Curlytop Knotweed Curl-top Smartweed Pale Smartweed | |
| Polygala lindheimeri | Shrubby Milkwort Purple Milkwort | |
| Polygala lindheimeri var. lindheimeri | Shrubby Milkwort Purple Milkwort | |
| Polygala lindheimeri var. parvifolia | Shrubby Milkwort | |
| Potamogeton nodosus | Longleaf Pondweed Knotty Pondweed | |
| Polytaenia nuttallii | Nuttall's Prairie Parsley Prairie Parsley Wild Dill Prairie Parsnip | |
| Podophyllum peltatum | Mayapple Indian Apple Wild Mandrake Pomme De Mai Podophylle Pelt | |
| Polygonum pensylvanicum | Pennsylvania Smartweed Pink Smartweed | |
| Portulaca pilosa | Kiss Me Quick Chisme | |
| Polygala polygama | Racemed Milkwort Pink Milkwort | |
| scientific name | common name(s) | image gallery |
