NATURAL HERITAGE INVENTORY TRACKING LIST

COMMON NAME S RANK G RANK

Acanthaceae Justicia ovata Ovate water-willow S? G5 Justicia ovata var. lanceolata S1 G5T4T5

Acoraceae Acorus americanus Sweetflag S? G5

Agavaceae Nolina texana bear-grass S1 G5 Yucca louisianensis Gulf coast yucca S1S2 G4G5

Aizoaceae Sesuvium verrucosum Winged sea-purslane S2 G5

Alismataceae Sagittaria cuneata Wapatum arrowhead S1 G5

Amaranthaceae Amaranthus scleropoides Bone- pigweed SH G5 Guilleminea densa Cottonflower S1 G5

Anacardiaceae Cotinus obovatus American smoke- S3 G4 Rhus lanceolata Prairie sumac S1S2 G4G5 Rhus microphylla Little-leaved sumac SH G4G5

Apiaceae Erigenia bulbosa Harbinger-of-spring S1S2 G5 Eryngium diffusum Spreading eryngo S3 G4? Eryngium integrifolium Blue- coyote-thistle S1 G5 Perideridia americana Eastern eulophus S1S2 G4

Apocynaceae Amsonia hubrichtii Hubricht's slimpod S1S2 G3

Aquifoliaceae Ilex ambigua Carolina holly S1S2 G5

Araceae Peltandra virginica Green arrow-arum S1S2 G5

Araliaceae Aralia spinosa Hercules club S1S2 G5 Panax quinquefolius American ginseng S1 G3G4

Arecaceae minor Dwarf palmetto S1 G5

Modified 9 June 2009.

Aristolochiaceae Aristolochia reticulata Texas dutchman's-pipe S2 G4

Asclepiadaceae Asclepias involucrata Dwarf milkweed S1 G5 Asclepias macrotis Long-hood milkweed S1S2 G4 Asclepias uncialis Greene milkweed S1 G3G4 Sarcostemma crispum Wavy- twinevine S2 G4G5

Aspleniaceae Asplenium bradleyi Bradley's spleenwort S1 G4 Asplenium pinnatifidum Lobed spleenwort S1 G4 Asplenium septentrionale Northern spleenwort S? G4G5

Asteraceae Acmella oppositifolia S? G5 Ambrosia acanthicarpa Flat-spine bursage S1S2 G5 Ambrosia confertiflora Weak-leaf bursage S1S2 G5 Antennaria parvifolia Nuttall's pussytoes S1S2 G5 Artemisia carruthii Larruth sagebrush S3 G4? Artemisia filifolia Sand sagebrush S? G5 Bidens bigelovii Bigelow's beggar-ticks S1 G5 Brickellia brachyphylla Plume brickell-bush S1S2 G5 Brickellia californica California brickell-bush S1S2 G5 Brickellia eupatorioides Thoroughwort brickellbush S? G5 Cirsium muticum Swamp thistle S1 G5 Echinacea paradoxa Bush's purple coneflower S? G2 Echinacea paradoxa var. neglecta Coneflower S1S2 G2T1 Eupatorium rotundifolium Round-leaf thorough-wort S1S2 G5 Flat-top fragrant-golden-rod S1 G5 Bushy fragrant-golden-rod S1S2 G5 Evax candida Silver evax S1S2 G3G5 Gnaphalium helleri Catfoot S1 G4G5 Helianthus silphioides Silphium sunflower S1 G4 Heliopsis helianthoides Ox-eye S? G5 Heliopsis helianthoides var. gracilis Pinewoods oxeye S1 G5T5? filifolius Fine-leaved woollywhite S1S2 G5 Hymenopappus scabiosaeus Carolina woollywhite S? G4G5 Iva axillaris Small-flowered marsh-elder SU G5 Lactuca tatarica Tartarian lettuce S? G5 Lactuca tatarica var. pulchella Blue lettuce S1 G5T5 Liatris densispicata Dense-spike gayfeather S? G5? Machaeranthera rubricaulis Red-stem tansy-aster S1 GNR Marshallia caespitosa Tufted barbara's-buttons S? G4 Marshallia caespitosa var. caespitosa Tufted marshallia S? G4T4 Marshallia caespitosa var. signata Tufted marshallia S? G4T4 Palafoxia callosa Small palafoxia S1 G4G5 Pectis angustifolia Crown- fetid-marigold S1S2 G4G5 Pericome caudata Mountain leaftail S1S2 G5 Picradeniopsis oppositifolia Opposite-leaf false-bahia S1S2 G5? Picradeniopsis woodhousei Woodhouse's false-bahia S2 G4G5

Modified 9 June 2009. Pseudoclappia arenaria Trans-pecos false-clappia S1 G3 Pyrrhopappus grandiflorus Large-flower false-dandelion S? G5 arizonica Arizona goldenrod S1S2 GNR Solidago auriculata Eared goldenrod S? G4 Solidago flexicaulis Broad-leaved goldenrod S1 G5 Solidago ouachitensis Ouachita mountain goldenrod S1 G3 Solidago patula Roundleaf goldenrod S? G5 Solidago patula var. strictula Round-leaved golden-rod S1 G5T5 Townsendia texensis Texas townsend-daisy S1S2 G4? Verbesina walteri Carolina crownbeard S1 G4 Vernonia lettermannii Narrowleaf ironweed S? G3 Vernonia missurica ironweed S3 G4G5 Vernonia texana Texas ironweed S1S2 G4G5 Zinnia grandiflora Rocky mountain zinnia S? G4G5

Azollaceae Azolla caroliniana Eastern mosquito-fern S2 G5

Balsaminaceae Impatiens pallida Pale jewel-weed S2 G5

Betulaceae Alnus maritima Seaside alder S2 G3

Bignoniaceae Bignonia capreolata Crossvine S1 G5

Boraginaceae Cryptantha cinerea James cat's-eye S1 G5 Cryptantha thyrsiflora Creeted cat's-eye S1S2 G4 Heliotropium procumbens Four-spike heliotrope S1 G5

Brassicaceae Arabis fendleri Fendler rock-cress S1 G5 Arabis shortii Short's rock-cress S1S2 G5 Draba aprica Open-ground whitlow-grass S1 G3 Leavenworthia aurea Golden glade cress S2 G2 Lesquerella angustifolia Thread-leaved bladderpod S3 G3 Rorippa teres Narsh yellow-cress S1S2 G5 Streptanthus squamiformis Jewelflower S1 G2 Thelypodium wrightii Wright thelypody S1S2 G4G5

Burmanniaceae Burmannia capitata Southern burmannia S1 G5

Cabombaceae Brasenia schreberi Watershield S1 G5 Cabomba caroliniana Carolina fanwort S1 G3G5

Cactaceae Echinocactus texensis Horse crippler S1 G5 Echinocereus viridiflorus Green-flowered hedgehog-cactus S1S2 G5 Mammillaria heyderi Little nipple-cactus S1S2 G4?

Modified 9 June 2009. Opuntia imbricata Tree cholla S1 G5 Opuntia polyacantha Panhandle prickly-pear S? G5 Opuntia polyacantha var. trichophora Plains prickly pear S1S2 G5T3T5 Opuntia tunicata Tuna cholla S1S2 G5

Capparaceae Cleomella angustifolia Northern rhombo-pod S? G5

Caprifoliaceae Symphoricarpos occidentalis Northern snowberry S1S2 G5 Symphoricarpos palmeri Palmer snowberry S1S2 G3G5

Caryophyllaceae Arenaria benthamii Hilly sandwort S1 G4 Arenaria hookeri Hooker sandwort S1 G5 Paronychia canadensis Forked nail-wort S1S2 G5 Paronychia drummondii Drummond nailwort S1S2 G4G5 Paronychia sessiliflora Low nailwort S1 G5 Silene regia Royal catchfly S1 G3

Chenopodiaceae Chenopodium cycloides Sandhill goosefoot SU G3G4 Chenopodium pallescens Narrow-leaved goosefoot S1S2 G5 Suckleya suckleyana Poison suckleya S1S2 G5

Clusiaceae Hypericum gentianoides Orange-grass St. John's-wort S1S2 G5 Hypericum majus Larger Canadian St. John's wort S1 G5 Triadenum tubulosum Large marsh St. John's wort S1S2 G4? Triadenum virginicum Marsh St. John's wort S1S2 G5

Commelinaceae Tradescantia ernestiana Ernest's spider-wort S? G3G4Q Tradescantia ozarkana Ozark spiderwort S1S2 G3

Convolvulaceae Cressa truxillensis Spreading alkali-weed S1 G5

Cornaceae Cornus foemina Stiff dogwood S1S2 G5

Crassulaceae Crassula aquatica Water pigmy-weed S1 G5

Crossosomataceae Glossopetalon planitierum Texas greasebush S1S2 G4

Cucurbitaceae Echinocystis lobata Wild mock-cucumber S1S2 G5

Cupressaceae Juniperus monosperma One-seeded juniper S2 G4G5

Modified 9 June 2009. Juniperus scopulorum Rocky mountain juniper S1 G5 Taxodium distichum Bald cypress S2 G5

Cuscutaceae Cuscuta attenuata S1 G2 Cuscuta umbellata Flat-globe dodder S1S2 G5

Cyperaceae Carex cephalophora Oval-leaved sedge S2 G5 Carex crawei Crawe sedge S? G5 Carex debilis White-edge sedge S1 G5 Carex decomposita Cypress-knee sedge SU G3 Carex fissa S2 G3G4Q Carex hyalina Tissue sedge S1 G4 Carex latebracteata Waterfall's sedge S2 G3 Carex leptalea Bristly-stalk sedge S1 G5 Carex longii Greenish-white sedge S1S2 G5 Carex oklahomensis Oklahoma sedge S? G4 Carex oxylepis Sharp-scale sedge S2 G5? Carex praegracilis Clustered field sedge S1 G5 Carex striatula Lined sedge S1 G4G5 Carex swanii Swan sedge S1 G5 Dulichium arundinaceum Three-way sedge S1 G5 Eleocharis smallii Creeping spike-rush S1 G5? Eleocharis tortilis Twisted spike-rush S1 G5 Rhynchospora caduca Falling beaked-rush S1 G5 Rhynchospora capillacea Horned beakrush S1 G4 Rhynchospora gracilenta Slender beak rush S1 G5 Rhynchospora rariflora Few-flowered beak-rush S1 G5 Scleria reticularis Reticulated nutrush S1S2 G4 Scleria verticillata Low nutrush S1 G5

Dryopteridaceae Dryopteris filix-mas Male fern S1 G5 Woodsia oregana Western cliff fern S1 G5

Elatinaceae Elatine americana American water-wort S1 G4

Ephedraceae Ephedra antisyphilitica Mormon tea S? G3G4

Equisetaceae Equisetum arvense Field horsetail S1 G5

Ericaceae Lyonia mariana Stagger-bush S1S2 G5 Vaccinium corymbosum Highbush blueberry S1S2 G5 Vaccinium virgatum S? G4

Eriocaulaceae Eriocaulon koernickianum Small-headed pipewort S1 G2

Modified 9 June 2009. Euphorbiaceae Argythamnia humilis var. laevis Wild mercury S1S2 G5T4 Chamaesyce carunculata Sand-dune broomspurge S1S2 G3G4 Crotonopsis linearis Narrowleaf rushfoil SH G5 Euphorbia commutata Wood spurge S1S2 G5

Fabaceae Aeschynomene indica India joint-vetch S1 G5 Amorpha ouachitensis Ouachita leadplant S2 G3Q Amorpha paniculata Panicled indigobush S1 G2G3 Astragalus bisulcatus Two-grooved milk-vetch S1 G5 Astragalus ceramicus Pottery milk-vetch S? G4 Astragalus ceramicus var. filifolius S1 G4T4 Astragalus gilviflorus Three-leaved milkvetch S1 G5 Astragalus puniceus S1S2 G4 Baptisia nuttalliana Nuttall's wild-indigo S2 G5 Dalea compacta Compact prairie-clover S1S2 G5 Dalea cylindriceps Andean prairie-clover S1 G3G4 Dalea enneandra Nine-anther dalea S? G5 Dalea formosa Feather-plume dalea S2 G5 Dalea jamesii James dalea S1 G5 Dalea nana Dwarf dalea S1 G5 Desmanthus cooleyi Cooley mimosa S2 G5 Desmodium pauciflorum Fewflower tick-trefoil S1 G5 Lathyrus eucosmus Seemly sweetpea S1 G4G5 Lespedeza angustifolia Narrowleaf bushclover S3 G5 Lupinus plattensis lupine S1S2 G4 Lupinus pusillus Small lupine S1S2 G5 Pediomelum hypogaeum S? G5 Phaseolus polystachios Wild kidney bean S1 G5 Wisteria macrostachya Kentucky wisteria S1S2 G5

Fagaceae Castanea pumila Allegheny chinquapin S? G5 Castanea pumila var. ozarkensis Ozark chinquapin S2 G5T3 Quercus gambelii Gambel oak S1 G5 Quercus imbricaria Shingle oak S1 G5 Quercus incana Blue jack oak S1S2 G5 Quercus michauxii Swamp chestnut S? G5 Quercus nuttallii Nuttall oak S1 G4G5 Quercus sinuata Durand oak S1S2 G4G5 Quercus virginiana Live oak S1 G5

Fumariaceae Dicentra cucullaria Dutchman's breeches S2 G5

Gentianaceae Bartonia paniculata Twining bartonia S1 G5 Frasera caroliniensis Carolina gentian S1 G5 Gentiana alba Yellow gentian S1 G4 Gentiana saponaria Soapwort gentian S1 G5

Grossulariaceae

Modified 9 June 2009. Itea virginica Virginia willow S1 G4 Ribes cereum White squaw currant S1S2 G5 Ribes curvatum Granite gooseberry S1 G4 Ribes cynosbati Prickly gooseberry S1S2 G5 Ribes missouriense Missouri gooseberry S1 G5

Hamamelidaceae Hamamelis virginiana American witch-hazel S2 G5

Hippocastanaceae Aesculus pavia Red buckeye S2 G5

Hydrangeaceae Philadelphus pubescens Hoary mock-orange SU G5?

Hydrophyllaceae Phacelia gilioides Brand phacelia S1 G5

Iridaceae Alophia drummondii Purple pleat-leaf S1 G4 Iris brevicaulis Lamance iris S1S2 G4 Iris cristata Crested dwarf iris S2 G5

Isoetaceae Isoetes butleri Butler's quillwort S1 G4 Isoetes melanopoda Blackfoot quillwort S1S2 G5

Juncaceae Juncus filipendulus Plains rush S1S2 G5 Juncus repens Creeping rush S1 G5 Juncus texanus Texas rush S1 G5

Lamiaceae Brazoria scutellarioides Prairie brazos-mint S1 G4 Hedeoma pulegioides American pennyroyal S2 G5 Monarda fistulosa Wild bergamot bee-balm S? G5 Monarda pectinata Plains lemmon bee-balm S3 G5 Physostegia micrantha False dragon-head SU GUQ Scutellaria cardiophylla Heart-leaf skullcap S1 G4? Scutellaria integrifolia Hyssop skullcap S1 G5 Stachys eplingii Epling's hedgenettle S1S2 G5 Stachys palustris Marsh hedge-nettle S1 G5

Lemnaceae Wolffiella gladiata Sword bogmat S1S2 G5

Lentibulariaceae Pinguicula pumila Small bladderwort S1 G4 Utricularia inflata Swollen bladderwort S1 G5 Utricularia juncea Southern bladderwort S1 G5 Utricularia subulata Zigzag bladderwort S1 G5

Liliaceae

Modified 9 June 2009. Aletris aurea Golden colicroot S1 G5 Aletris farinosa White-tubed colicroot S1S2 G5 Hymenocallis caroliniana Carolina spider-lily S1 G4 Hypoxis sessilis Glossy-seeded stargrass S1 G4 Melanthium virginicum Virginia bunchflower S1 G5 Stenanthium gramineum Eastern featherbells S1 G4G5 Trillium pusillum Least trillium S? G3 Trillium pusillum var. ozarkanum Ozark least trillium S1 G3T3 Uvularia sessilifolia Sessile-leaf bellwort S1 G5

Linaceae Linum imbricatum Tufted flax S1 G4

Loganiaceae Mitreola sessilifolia Miterwort S1 G4G5 Spigelia marilandica Woodland pinkroot S? G4

Lythraceae Didiplis diandra Water-purslane S1S2 G5

Magnoliaceae acuminata Cucumber magnolia S1 G5 Magnolia tripetala Umbrella magnolia S1 G5

Malvaceae bushii Bush's poppy-mallow S3 G3 Malvella leprosa Alkali mallow S1S2 G5 Modiola caroliniana Bristly-fruited mallow S2 G5 Rhynchosida physocalyx S1S2 G4G5 Sphaeralcea angustifolia Narrowleaf globe-mallow S? G5 Sphaeralcea angustifolia ssp. cuspidata Globe mallow S1 G5TNR

Marantaceae Thalia dealbata Powdery thalia S3 G4

Marsileaceae Marsilea vestita Hairy water-fern S1 G5 Pilularia americana American pillwort S1S2 G5

Molluginaceae Glinus radiatus Carpet-weed S1 G5

Monotropaceae Monotropa hypopithys American pinesap S1 G5 Monotropa uniflora Indian-pipe S1 G5

Moraceae Morus microphylla Texas mulberry S1S2 G5?

Nyctaginaceae Allionia incarnata S1S2 G5 Boerhavia erecta Erect spiderling S2 G5

Modified 9 June 2009. Mirabilis oxybaphoides Spreading four-o'clock S1 G5 Selinocarpus diffusus Spreading moonpod S1 G4G5

Oleaceae Chionanthus virginicus Fringe tree S2 G5

Onagraceae Epilobium coloratum Purple-leaf willow-herb SU G5 Epilobium halleanum Glandular willow-herb S1 G5 Gaura brachycarpa Plains butterfly-weed S1S2 G4G5 Gaura demareei Demaree's gaura S1 G4Q Ludwigia hirtella Hairy ludwigia S1 G5 Ludwigia linearis Narrow-leaf seedbox S1 G5 Oenothera canescens Spotted evening-primrose S2 G4G5 Oenothera engelmannii Engelmann evening-primrose S1 G4

Ophioglossaceae Botrychium lunarioides Winter grape-fern S1 G4? Ophioglossum nudicaule Least adder's-tongue fern S1 G5 Ophioglossum petiolatum Longstem adder's-tongue fern S1 G5

Orchidaceae Aplectrum hyemale Puttyroot S1 G5 Corallorhiza odontorhiza Autumn coral-root S1 G5 Cypripedium calceolus S2 G5 Cypripedium kentuckiense Aouthern lady's-slipper S1 G3 Epipactis gigantea Giant helleborine S1S2 G3G4 Habenaria repens Water-spider orchid S1 G5 Hexalectris spicata Crested coralroot S1S2 G5 Isotria verticillata Large whorled pogonia S1 G5 Liparis liliifolia Large twayblade S1 G5 Listera australis Southern twayblade S1 G4 Malaxis unifolia Green adder's-mouth S1 G5 Platanthera ciliaris Yellow-fringe orchid S1 G5 Platanthera clavellata Small green woodland orchid S1S2 G5 Platanthera flava Southern rein-orchid S1 G4 Platanthera lacera Green-fringe orchis S1S2 G5 Eastern prairie white-fringed Platanthera leucophaea orchid SH G3 Platanthera praeclara Western prairie fringed orchid S1 G3 Pogonia ophioglossoides Rose pogonia S1 G5 Spiranthes praecox Grassleaf ladies'-tresses S1 G5 Tipularia discolor Cranefly orchid S1 G4G5

Orobanchaceae Epifagus virginiana Beechdrops S1 G5

Papaveraceae Argemone squarrosa Hedgehog prickly-poppy S1 G4

Pinaceae Pinus edulis Two-needle pinyon pine S1S2 G5 Pinus ponderosa Ponderosa pine S1S2 G5

Modified 9 June 2009.

Poaceae Aegopogon tenellus S? G5 Aristida arizonica Arizona three-awn grass S1S2 G4 Axonopus furcatus Big carpet grass S1 G5 Bouteloua barbata Six weeks gramma S1 G5 Bouteloua eriopoda Black gramma S1 G5 Brachyelytrum erectum Bearded short-husk S1 G5 Bromus lanatipes Woolly brome S1S2 G5 Calamovilfa arcuata S2 G2 Cenchrus echinatus Southern sandbur S1 G5 Deschampsia flexuosa Crinkled hairgrass S1 G5 Enneapogon desvauxii Nine-awned pappus grass S1S2 G5 Eragrostis glomerata Pond lovegrass S1 G3G5 Glyceria arkansana manna-grass S1 G5 Lycurus phleoides Wolftail S1S2 G5 Muhlenbergia bushii Bush's muhly S1S2 G5 Muhlenbergia porteri Porter's muhly S1S2 G5 Muhlenbergia reverchonii Seep muhly S? G4 Muhlenbergia torreyi Ring muhly S? G4 Oplismenus hirtellus Basket grass S1S2 G5 Panicum obtusum Blunt panic grass S? G5 Panicum verrucosum Warty panicgrass S1 G4 Paspalum dissectum Walter paspalum S1 G4? Paspalum laeve Field paspalum S3 G4G5 Piptochaetium avenaceum Blackseed needlegrass S2 G5 Sacciolepis striata Gibbous panic-grass S2 G5 Scleropogon brevifolius Burro grass S1 G5 Setaria firmula Knot grass S1 G4 Setaria grisebachii Grisebach foxtail S1 G4G5 Setaria reverchonii Reverchon's bristle grass S1S2 G4G5 Sorghastrum elliottii Long-bristled Indian-grass S1S2 G5 Sporobolus giganteus Giant dropseed S2 G5 Trisetum interruptum Southern oats S3 G4

Polemoniaceae Phlox longipilosa Long-hair phlox S2 G2Q Phlox oklahomensis Oklahoma phlox S1S2 G3

Polygalaceae Polygala cruciata Crossleaf milkwort S1 G5 Polygala lindheimeri Llindheimer's milkwort S? G4 Polygala polygama Racemed milkwort S2 G5

Polygonaceae Eriogonum jamesii James wild-buckwheat S1S2 G5 Eriogonum lachnogynum Longroot wild-buckwheat S1S2 G4? Eriogonum tenellum Tall wild-buckwheat S1S2 G5 Polygonella americana Southern jointweed S1S2 G5 Rumex verticillatus Swamp dock S3 G5

Potamogetonaceae Potamogeton natans Floating pondweed S1 G5

Modified 9 June 2009. Primulaceae Lysimachia quadriflora Four-flowered loosestrife S1 G5? Lysimachia radicans Trailing loosestrife S? G4G5

Pteridaceae Cheilanthes alabamensis lipfern SH G4G5 Cheilanthes fendleri Fendler lipfern S1S2 G4 Cheilanthes lindheimeri Lindheimer lipfern S1S2 G4G5 Cheilanthes wootonii Wooton lacefern S2 G5

Ranunculaceae Actaea pachypoda White baneberry S1 G5 Clematis crispa Blue jasmine leather-flower S1 G5 Clematis drummondii Drummond leather-flower S1S2 G5 Clematis glaucophylla White-leaved leather-flower S2 G4? Clematis hirsutissima Clustered leather-flower S1 G4 Virginia virgin-bower S1S2 G5 Hydrastis canadensis Golden-seal SU G4 Ranunculus flabellaris Yellow water-crowfoot S1 G5 Ranunculus pusillus Pursh buttercup S3 G5 Thalictrum arkansanum Arkansas meadow-rue S2 G2Q

Rhamnaceae Rhamnus lanceolata Lance-leaved buckthorn SH G5

Rosaceae Aruncus dioicus Common goatsbeard S1 G5 Colorado birch-leaved mountain- Cercocarpus montanus mahogany S1S2 G5 Fallugia paradoxa Apache-plume S1 G5 Physocarpus monogynus Mountain ninebark S1S2 G4 Physocarpus opulifolius Eastern ninebark S2 G5 Potentilla rivalis Brook cinquefoil S1 G5 Rosa woodsii Woods rose S1 G5 Rubus allegheniensis Allegheny blackberry S3 G5 Rubus deliciosus Delicious blackberry S1 G4? Sanguisorba annua Prairie burnet S? G4

Rubiaceae Galium arkansanum Arkansas bedstraw S1S2 G5 Galium arkansanum var. pubiflorum Arkansas bedstraw S1 G5T2Q

Salicaceae Salix petiolaris Meadow willow S1 G5

Santalaceae Comandra umbellata Umbellate bastard toad-flax S? G5

Saururaceae Anemopsis californica Yerba mansa S1 G5

Saxifragaceae

Modified 9 June 2009. Parnassia grandifolia Large-leaved grass-of-parnassus S1 G3

Scrophulariaceae Agalinis homalantha San Antonio false-foxglove S1 G5 Agalinis viridis Green false-foxglove S1 G4? Bacopa monnieri Coastal water-hyssop S1 G5? Collinsia verna Spring blue-eyed mary S1 G5 Penstemon cobaea var. purpureus Purple beardtongue S2 G4TNRQ Penstemon murrayanus Cupleaf beardtongue S2 G4 Penstemon oklahomensis Oklahoma beardtongue S3 G3

Selaginellaceae Selaginella densa Dense spike-moss S1 G5

Smilacaceae smallii Small's greenbrier S2 G5?

Solanaceae Lycium berlandieri Berlandier wolf-berry S1S2 G5 Lycium pallidum Pale wolf-berry S1 G5 Nicotiana trigonophylla Desert tobacco S1 G4G5 Solanum triflorum Cut-leaf nightshade S1S2 G5

Styracaceae Halesia carolina Carolina silverbell S2 G4G5 Halesia diptera Two-wing silverbell SH G5 Styrax americanus American snowbell S1 G5

Symplocaceae Symplocos tinctoria Horse-sugar S1S2 G5

Thymelaeaceae Dirca palustris Eastern leatherwood S1S2 G4

Tiliaceae Tilia americana American basswood S? G5

Ulmaceae Ulmus serotina September elm S2 G4

Urticaceae Urtica chamaedryoides Weak nettle S? G4G5 Urtica dioica Stinging nettle S2 G5

Valerianaceae Valerianella longiflora Long-flower cornsalad S? GNR Valerianella nuttallii Nuttall corn-salad S? G1G2 Valerianella ozarkana Ozark cornsalad SH G3

Verbenaceae Verbena xutha Gulf vervain S1 G5

Modified 9 June 2009. Violaceae Viola viarum Plains violet S2 G5

Vitaceae Vitis rupestris Rock grape S? G3

Modified 9 June 2009.