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.

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scientific name	common name(s)	image gallery
Rumex hastatulus	Heartwing Sorrel Heart-wing Sorrel	6 images
Rudbeckia hirta	Black-eyed Susan Common Black-eyed Susan Brown-eyed Susan Blackeyed Susan	150 images
Rudbeckia hirta var. pulcherrima	Black-eyed Susan Blackeyed Susan Brown-eyed Susan Pinewoods Coneflower	118 images
Ruellia humilis	Prairie Petunia Fringeleaf Wild Petunia Hairy Ruellia Low Wild Petunia Low Ruellia Fringeleaf Ruellia Fringe-leaf Wild Petunia	30 images
Rumex hymenosepalus	Canaigre Dock Canaigre Desert Rhubarb	23 images
Rudbeckia maxima	Giant Coneflower Great Coneflower Giant Brown-eyed Susan Cabbage Coneflower	55 images
Ruellia metziae	White Ruellia Metz's Wild Petunia Metz Wild Petunia Wild White Petunia	14 images
Ruellia nudiflora	Violet Ruellia Common Wild Petunia Violet Wild Petunia Wild Petunia Hierba De La Calentura	34 images
Ruellia nudiflora var. nudiflora	Violet Wild Petunia	5 images
Rumex spiralis	Winged Dock	2 images
Ruellia strepens	Limestone Ruellia Limestone Wild Petunia	5 images
Rubus trivialis	Southern Dewberry Dewberry	45 images
Sabatia angularis	Rosepink Rose-pink	24 images
Sabatia arenicola	Sand Rose Gentian	1 images
Salvia azurea	Pitcher Sage Big Blue Sage Azure Sage Giant Blue Sage Blue Sage	17 images
Salvia azurea var. grandiflora	Pitcher Sage Blue Sage	21 images
Salvia ballotiflora	Shrubby Blue Sage Blue Shrub Sage Mejorana	21 images
Sanicula canadensis	Canadian Blacksnakeroot Black Snakeroot	19 images
Sagittaria calycina	Hooded Arrowhead	1 images
Sabatia campestris	Texas Star Rose Gentian Meadow Pink Prairie Rose-gentian Prairie Sabatia	34 images
Saururus cernuus	Lizard's Tail Lizard Tail Breastweed Water Dragon	24 images
Salvia coccinea	Scarlet Sage Tropical Sage Blood Sage Red Sage Indian Fire	68 images
Sagina decumbens	Trailing Pearlwort
Sagina decumbens ssp. decumbens	Trailing Pearlwort
Samolus ebracteatus	Limewater Brookweed	4 images
Samolus ebracteatus ssp. cuneatus	Limewater Brookweed Limerock Brookweed	3 images
Salvia engelmannii	Engelmann's Sage Engelmann's Salvia	21 images
Salix exigua	Narrowleaf Willow Narrow-leaf Willow Sandbar Willow Coyote Willow	2 images
Salvia farinacea	Mealy Blue Sage Mealy Sage Mealycup Sage	84 images
Saccharum giganteum	Sugarcane Plumegrass Giant Plumegrass	8 images
Sagittaria graminea	Grassy Arrowhead Grass-leaf Arrowhead	28 images
Salvia greggii	Autumn Sage Cherry Sage Gregg Salvia	63 images
Sagittaria graminea var. graminea	Grassy Arrowhead	8 images
Sagittaria latifolia	Broadleaf Arrowhead Arrowhead Duckroot Duck-potato Wapato	17 images
Sagittaria longiloba	Longbarb Arrowhead Flecha De Agua Long-lobe Arrowhead Long-barb Arrowhead	8 images
Salvia lyrata	Lyreleaf Sage Cancer Weed	39 images
Sabal minor	Dwarf Palmetto Bush Palmetto Palmetto	53 images
Salix nigra	Black Willow Gulf Black Willow Swamp Willow Sauz	22 images
Sambucus nigra	Black Elderberry	2 images
Sambucus nigra ssp. canadensis	Common Elderberry Black Elder Mexican Elderberry Common Elder Elderberry Tapiro Sauco	87 images
Sanicula odorata	Clustered Blacksnakeroot	3 images
Sagittaria platyphylla	Delta Arrowhead	10 images
Salvia reflexa	Mintweed Lanceleaf Sage Lamb's-leaf Sage Rocky Mountain Sage Sage Mint Blue Sage	4 images
Salvia roemeriana	Cedar Sage	33 images
Sapindus saponaria	Wingleaf Soapberry Soapberry Wild China Tree	1 images
Sapindus saponaria var. drummondii	Western Soapberry Soapberry Wild China Tree Wild Chinaberry Indian Soap Plant Jaboncillo	32 images
Salvia texana	Texas Sage Blue Sage	16 images
Samolus valerandi	Seaside Brookweed
Samolus valerandi ssp. parviflorus	Seaside Brookweed Water Pimpernel Thin-leaf Brookweed	13 images
Schoenoplectus acutus	Hardstem Bulrush Tule
Scirpus atrovirens	Green Bulrush Dark Green Bulrush	3 images
Schoenoplectus californicus	California Bulrush California Club-rush Giant Bulrush	8 images
Scutellaria cardiophylla	Gulf Skullcap	3 images
Scleria ciliata	Fringed Nutrush	6 images
Scutellaria drummondii	Drummond's Skullcap	28 images
Scutellaria drummondii var. drummondii	Drummond's Skullcap	12 images
Scutellaria drummondii var. edwardsiana	Drummond's Skullcap	8 images
Scutellaria elliptica	Hairy Skullcap	11 images
Scutellaria elliptica var. hirsuta	Hairy Skullcap	2 images
Scirpus georgianus	Georgia Bulrush
Scleria oligantha	Littlehead Nutrush	6 images
Scutellaria ovata	Heartleaf Skullcap Heart-leaf Skullcap	17 images
Schedonnardus paniculatus	Tumblegrass Tumble Grass	6 images
Scutellaria parvula	Small Skullcap	4 images
Scirpus pendulus	Rufous Bulrush	2 images
Schoenoplectus pungens	Common Threesquare Chairmaker's-rush American Bulrush Threesquare Bulrush Sharp Clubrush	2 images
Scutellaria resinosa	Sticky Skullcap Shrubby Skullcap Resin-dot Skullcap Resinous Skullcap	3 images
Schizachyrium scoparium	Little Bluestem Popotillo Azul	51 images
Schoenoplectus tabernaemontani	Softstem Bulrush Soft-stem Club-rush Great Bulrush	4 images
Schoenocaulon texanum	Texas Feathershank Green Lily Texas Sabadilla	6 images
Scleria triglomerata	Whip Nutrush	2 images
Scutellaria wrightii	Wright's Skullcap Bushy Skullcap Shrubby Skullcap	33 images
Senecio ampullaceus	Texas Ragwort Texas Groundsel Texas Butterweed	19 images
Selaginella apoda	Meadow Spikemoss	7 images
Selaginella arenicola ssp. riddellii	Riddell's Spikemoss	6 images
Sesbania drummondii	Rattlebush Rattlebox Poisonbean	15 images
Senecio flaccidus	Threadleaf Ragwort Threadleaf Groundsel	23 images
Setaria grisebachii	Grisebach's Bristlegrass
Sesbania herbacea	Coffeeweed Bigpod Sesbania	16 images
Setaria leucopila	Streambed Bristlegrass Plains Bristlegrass	2 images
Senna lindheimeriana	Lindheimer's Senna Velvet Leaf Senna Velvetleaf Senna Velvet-leaf Wild Sensitive-plant Puppy-dog Ears	73 images
Senna marilandica	Maryland Senna Maryland Wild Senna Southern Wild Senna Wild Senna	10 images
Setaria magna	Giant Bristlegrass	5 images
Sedum nuttallianum	Yellow Stonecrop	39 images
Senna obtusifolia	Java-bean Sicklepod	3 images
Setaria parviflora	Marsh Bristlegrass Knotroot Bristlegrass	10 images
Selaginella peruviana	Peruvian Spikemoss	3 images
Sedum pulchellum	Widowscross	17 images
Senna pumilio	Dwarf Senna	4 images
Setaria reverchonii	Reverchon's Bristlegrass
Setaria reverchonii ssp. ramiseta	Rio Grande Bristlegrass
Senegalia roemeriana	Roemer Acacia Roemer's Acacia Roundflower Catclaw Round-flowered Catclaw Catclaw Acacia Catclaw	13 images
Senna roemeriana	Twoleaf Senna Two Leaved Senna	44 images
Setaria scheelei	Southwestern Bristlegrass Scheele's Bristlegrass Scheele's Foxtail Grass Foxtail Grass	31 images
Sesbania vesicaria	Bagpod Bladderpod	9 images
Senegalia wrightii	Wright Acacia Wright's Acacia Catclaw Acacia Catclaw	34 images
Silphium albiflorum	White Rosinweed White-flowered Rosinweed Compass Plant	14 images
Sicyos angulatus	One-seed Burr Cucumber Star Cucumber	6 images
Silene antirrhina	Sleepy Silene Sleepy Catchfly	4 images
Sisyrinchium angustifolium	Narrowleaf Blue-eyed Grass Narrow-leaf Blue-eyed-grass Bermuda Blue-eyed Grass Blue-eyed Grass	24 images
scientific name	common name(s)	image gallery

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Special Collections

Cross Timbers

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