Special Collections
Trans-Pecos
The Trans-Pecos area in Far West Texas is traversed by the eastern chain of the Rocky Mountains into the Basin and Range Province and is typical of the southwestern United States. Guadalupe Peak, having an elevation of 8,751 feet, of the Guadalupe Mountains, is the highest point in Texas. Surrounding peaks are El Capitan, Shumard, Bartlett, and Pine Top, all exceeding 8,000 feet. Mount Emory in the Chisos Mountains and Mount Locke in the Davis Mountains are 7,825 feet and 8,382 feet high, respectively. Notable canyons and gorges are Santa Elena, Boquillas, and Mariscal on the Big Bend of the Rio Grande; and McKittrick in the Guadalupe Mountains. Uplands soils are mostly light reddish brown to brown clay loams, clays, and sands over reddish, loamy to clayey, calcareous, gypsic or saline subsoils. These include many areas of shallow soils and rocklands. Sizeable areas of deep sands exist. Drainage is rapid in the mountains, slow in the basins, and absent in the bolsons.Printer Friendly: Species List | List with Images | List with QR Tags to Mobile
| scientific name | common name(s) | image gallery |
| Melica nitens | Three-flower Melic Tall Melicgrass Threeflower Melicgrass Melicgrass | |
| Mimosa borealis | Fragrant Mimosa Pink Mimosa | |
| Monarda citriodora | Lemon Beebalm Purple Horsemint Lemon Mint Plains Horsemint Lemon Horsemint Horsemint Purple Lemon Mint | |
| Morus microphylla | Texas Mulberry Littleleaf Mulberry Mountain Mulberry Mexican Mulberry Dwarf Mulberry | |
| Morus rubra | Red Mulberry Moral | |
| Muhlenbergia arenacea | Ear Muhly | |
| Muhlenbergia emersleyi | Bullgrass Bull Muhly | |
| Muhlenbergia rigida | Purple Muhly | |
| Muhlenbergia torreyi | Ring Muhly Torrey Muhly | |
| Nolina erumpens | Foothill Beargrass Mesa Sacahuista | |
| Nolina texana | Texas Sacahuista Texas Beargrass Basket Grass Sacahuista Bunchgrass Texas Bear-grass | |
| Nuttallanthus texanus | Texas Toadflax Texas Toad-flax Toadflax | |
| Oenothera albicaulis | Whitest Evening-primrose White-stem Evening-primrose Pale Evening-primrose | |
| Oenothera brachycarpa | Shortfruit Evening-primrose Short-fruit Evening-primrose Shortfruit Evening Primrose | |
| Oenothera primiveris | Desert Evening-primrose Yellow-flower Desert Evening-primrose Bottle Evening Primrose Large Yellow Desert Primrose | |
| Oenothera speciosa | Pink Evening Primrose Showy Evening Primrose Mexican Evening Primrose Showy Primrose Pink Ladies Buttercups Pink Buttercups | |
| Opuntia engelmannii var. engelmannii | Cactus Apple Prickly Pear | |
| 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 | |
| Pappophorum bicolor | Pink Pappasgrass Pink Pappusgrass | |
| Palafoxia rosea | Rosy Palafox Rose Palafoxia | |
| Pascopyrum smithii | Western Wheatgrass | |
| Palafoxia sphacelata | Othake Sand Palafoxia | |
| Parkinsonia texana var. texana | Texas Paloverde Texas Palo-verde Palo-verde | |
| Panicum virgatum | Switchgrass Wand Panic Grass | |
| Pectis angustifolia | Limoncillo Lemonscent Crownseed Pectis Lemon-scented Pectis Lemonscent Pectis Lemonweed Chinchweed Fetid Marigold | |
| Penstemon baccharifolius | Rock Penstemon Rock Beardtongue Cut-leaf Penstemon Cut-leaf Beardtongue Baccharis-leaf Penstemon Baccharis-leaf Beardtongue | |
| Penstemon barbatus | Scarlet Bugler Beard-lip Penstemon Beard-lip Beardtongue Red Penstemon Red Beardtongue Goldenbeard Penstemon Goldenbeard Beardtongue Saint Joseph's Staff Varita De San Jose | |
| Penstemon fendleri | Fendler's Penstemon Fendler's Beardtongue Fendler Penstemon Fendler Beardtongue Purple Foxglove | |
| Penstemon havardii | Havard Penstemon Havard Beardtongue Big Bend Penstemon Big Bend Beardtongue Havard's Penstemon Havard's Beardtongue | |
| Penstemon wrightii | Wright's Penstemon Wright's Beardtongue Wright Penstemon Wright Beardtongue | |
| Phacelia congesta | Caterpillars Blue Curls Fiddleneck | |
| Pinus cembroides | Mexican Pinyon Mexican Pinyon Pine Pinyon Nut Pine Border Pinyon | |
| Pistacia mexicana | Mexican Pistachio Texas Pistachio American Pistachio Copal Pistachio Wild Pistachio Lentisco Texas Pistache | |
| Pinus ponderosa | Ponderosa Pine Western Yellow Pine Pino Blanco | |
| Pinus ponderosa var. scopulorum | Rocky Mountain Ponderosa Pine Interior Ponderosa Pine Black Hills Ponderosa Pine Ponderosa Pine | |
| Pinus strobiformis | Southwestern White Pine Border White Pine Mexican White Pine Border Limber Pine Limber Pine | |
| Pleuraphis mutica | Tobosagrass Tobosa Grass | |
| Polygala alba | White Milkwort | |
| Populus deltoides ssp. wislizeni | Rio Grande Cottonwood Valley Cottonwood Wislizenus Cottonwood Alamo Guerigo | |
| Populus fremontii ssp. mesetae | Fremont Cottonwood Meseta Cottonwood Arizona Cottonwood | |
| Populus tremuloides | Quaking Aspen Golden Aspen Trembling Aspen Mountain Aspen Aspen Trembling Poplar Alamo Blanco | |
| Prosopis glandulosa | Honey Mesquite Glandular Mesquite Algarroba | |
| Proboscidea louisianica | Louisiana Devil's-claw Devil's claw Ram's-horn Unicorn Plant Proboscis Flower | |
| Prunus murrayana | Murray's Plum Murray Plum | |
| Prosopis pubescens | Screwbean Mesquite American Screwbean Tornillo Screwbean Screwpod Mesquite Twisted Bean Fremont Screwbean | |
| Prunus serotina var. rufula | Chisos Black Cherry Southwestern Black Cherry | |
| Pseudotsuga menziesii | Douglas Fir Blue Douglas Fir | |
| Psorothamnus scoparius | Broom Dalea Broom Smokebush Broom Pea | |
| Psilostrophe tagetina | Woolly Paperflower Paperflower | |
| scientific name | common name(s) | image gallery |
