Special Collections
East Central Texas Plains
This EPA Level III ecoregion encompasses all or part of 56 Texas counties. This ecoregion separates the two bands of the Texas Blackland Prairies ecoregion and extends just across the Oklahoma border. In Texas, it covers approximately the same land area as the Texas Parks & Wildlife Department’s Post Oak Savannah vegetative region. This collection lists only those taxa found in the Texas portion of the East Central Texas Plains ecoregion.Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
| scientific name | common name(s) | image gallery |
| Philadelphus microphyllus | Littleleaf Mock Orange | |
| Physalis mollis | Field Groundcherry | |
| Phlox nana | Santa Fe Phlox White-eyed Phlox Canyon Phlox | |
| Phlox nivalis | Trailing Phlox | |
| 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. austrotexana | South Texas Sand 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 | |
| Philadelphus pubescens | Hoary Mock Orange | |
| 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 | |
| Physalis pubescens var. pubescens | Husk Tomato | |
| Phlox roemeriana | Goldeneye Phlox Golden-eye Phlox | |
| Phacelia rupestris | Rock Phacelia | |
| Phacelia strictiflora | Prairie Phacelia | |
| Philadelphus texensis | Texas Mock Orange | |
| 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 | |
| Piptochaetium avenaceum | Blackseed Speargrass | |
| Pinus clausa | Sand Pine | |
| Pinus echinata | Shortleaf Pine Shortleaf Yellow Pine Southern Yellow Pine Yellow Pine Shortstraw Pine Arkansas Pine Longtag Pine Spruce Pine Oldfield Pine Arkansas Soft Pine | |
| Pinus elliottii | Slash Pine | |
| Pityopsis graminifolia | Narrowleaf Silkgrass Golden Aster | |
| Pinus palustris | Longleaf Pine Georgia Pine Longleaf Yellow Pine Southern Yellow Pine Longstraw Pine Hill Pine Hard Pine Heart Pine | |
| Pilea pumila | Canadian Clearweed Clearweed | |
| 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 | |
| Pilostyles thurberi | Thurber's Stemsucker Pilostyles | |
| Planera aquatica | Planer Tree Water Elm | |
| Plantago aristata | Largebracted Plantain Buckthorn | |
| Pluchea camphorata | Camphor Pluchea Camphor Weed | |
| Platanthera ciliaris | Orange Fringed Orchid Yellow Fringed Orchid Orange Plume Bobwhite's-mocassin Owl's-head | |
| Platanthera clavellata | Small Green Wood Orchid Small Woodland Orchid | |
| Platanthera cristata | Crested Yellow Orchid Orange Fringed Orchid | |
| Plantago elongata | Prairie Plantain | |
| Pluchea foetida | Stinking Camphorweed | |
| Plantago helleri | Heller's Plantain Cedar Plantain | |
| Plantago heterophylla | Slender Plantain | |
| Plantago hookeriana | California Plantain Tallow Weed | |
| Platanthera lacera | Green Fringed Orchid Ragged Fringed Orchid | |
| Platanthera nivea | Snowy Orchid Frog Spear Bog Torch White Frog Arrow White Rein Orchid | |
| 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 virginica | Virginia Plantain Paleseed Indian-wheat Dwarf Plantain Paleseed Plantain Hoary Plantain Southern Plantain | |
| Plantago wrightiana | Wright's Plantain | |
| Polystichum acrostichoides | Christmas Fern | |
| Polystichum acrostichoides var. acrostichoides | Christmas Fern | |
| Polygala alba | White Milkwort | |
| Polygonella americana | Southern Jointweed | |
| Polygonum amphibium | Water Knotweed Water Smartweed | |
| Polygonum amphibium var. emersum | Longroot Smartweed | |
| Poa arachnifera | Texas Bluegrass Texas Blue Grass | |
| Poa bigelovii | Bigelow's Bluegrass | |
| Polygonatum biflorum | Smooth Solomon's Seal Great Solomon's-seal Sealwort | |
| Polygonatum biflorum var. commutatum | Great Solomon's Seal Giant Solomon's Seal | |
| Pontederia cordata | Pickerelweed Pickerel Rush | |
| Polygala cruciata | Drumheads Candy Root Crossleaf Milkwort Cross-leaved Milkwort | |
| 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 | |
| Populus deltoides ssp. wislizeni | Rio Grande Cottonwood Valley Cottonwood Wislizenus Cottonwood Alamo Guerigo | |
| 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 | |
| Populus fremontii | Fremont Cottonwood Western Cottonwood Gila Cottonwood Alamo | |
| Populus fremontii ssp. mesetae | Fremont Cottonwood Meseta Cottonwood Arizona Cottonwood | |
| Polygonum glabrum | Denseflower Knotweed | |
| Portulaca halimoides | Silkcotton Purslane | |
| Polygonum hydropiperoides | Swamp Smartweed | |
| Potamogeton illinoensis | Illinois Pondweed | |
| Poliomintha incana | Frosted Mint Hoary Rosemary-mint Mintbush | |
| Polygala incarnata | Procession Flower Pink Milkwort | |
| Polygonum lapathifolium | Curlytop Knotweed Curl-top Smartweed Pale Smartweed | |
| Polygala lindheimeri | Shrubby Milkwort Purple Milkwort | |
| Polygala lindheimeri var. lindheimeri | Shrubby Milkwort Purple Milkwort | |
| Polygala macradenia | Glandleaf Milkwort | |
| Polygala mariana | Maryland Milkwort | |
| Potamogeton nodosus | Longleaf Pondweed Knotty Pondweed | |
| Polytaenia nuttallii | Nuttall's Prairie Parsley Prairie Parsley Wild Dill Prairie Parsnip | |
| Pogonia ophioglossoides | Rose Pogonia Snake-mouth Orchid Beard Flower | |
| Polygala ovatifolia | Eggleaf Milkwort | |
| Polygonella parksii | Parks' Jointweed | |
| scientific name | common name(s) | image gallery |
