VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

FAMILY STATUS SCIENTIFIC NAME COMMON NAME

PTERIDACEAE N Cheilanthes eatonii Baker Eaton's Lipfern PTERIDACEAE N Cheilanthes lindheimeri (J. Smith) Hooker Fairy Swords CUPRESSACEAE PL Hesperocyparis arizonica (Greene) Bartel Cypress CUPRESSACEAE N Juniperus arizonica (R.P. Adams) R.P. Adams Red-Berried Juniper CUPRESSACEAE N Juniperus deppeana Steudel Alligator Juniper PINACEAE PL Pinus edulis Engelmann Pinon Pine EPHEDRACEAE N Ephedra torreyana Torrey ex Watson var. torreyana Torrey's Ephedra EPHEDRACEAE N Ephedra trifurca Torrey ex S. Watson Longleaf Ephedra ADOXACEAE N Sambucus caerulea Rafinesque var. mexicana Mexican Elderberry AIZOACEAE N Trianthema portulacastrum L. Desert Horse- Purslane AMARANTHACEAE N Acanthochiton wrightii Torrey Greenstripe AMARANTHACEAE E Amaranthus blitoides S. Watson Prostrate Pigweed AMARANTHACEAE N Amaranthus palmeri S. Watson Palmer's Amaranth AMARANTHACEAE N Froelichia arizonica Thornber ex Standley Arizona Snakecotton AMARANTHACEAE N Froelichia gracilis (Hooker) Moquin-Tandon Slender Snakecotton AMARANTHACEAE N Gomphrena caespitosa Torrey Tufted Globe- Amaranth AMARANTHACEAE N Gomphrena nitida Rothrock Pearly Globe- Amaranth AMARANTHACEAE N Guilleminea densa (Humboldt & Bonpland ex Willdenow) Small Matweed Moquin-Tandon var. aggregata Uline & Bray AMARANTHACEAE N Tidestromia lanuginosa (Nuttall) Standley Wooly Honeysweet AMARANTHACEAE N Atriplex canescens (Pursh) Nuttall Four-Wing Salt- Bush AMARANTHACEAE N Atriplex elegans (Moquin-Tandon) D. Dietrich var. elegans Wheel Scale AMARANTHACEAE N Chenopodium incanum (S. Watson) Heller Mealy Goosefoot AMARANTHACEAE N Chenopodium cf. leptophyllum (Nuttall ex Moquin-Tandon) S. Watson AMARANTHACEAE N Dysphania graveolens (Willdenow) Mosyakin & Clemants Fetid Goosefoot AMARANTHACEAE N Krascheninnikovia lanata (Pursh) Meeuse & Smits Winter Fat AMARANTHACEAE N Salsola collina P.S. Pallas Slender Russian Thistle AMARANTHACEAE N Salsola tragus Linnaeus Russian-Thistle ANACARDIACEAE N Rhus microphylla Engelmann ex Gray Littleleaf Sumac ANACARDIACEAE N Rhus trilobata Nuttall Skunkbush Sumac APIACEAE N Cymopterus multinervatus (Coulter & Rose) Tidestrom Purple-Nerve Spring-Parsley APIACEAE N Daucus pusillus Michaux Southwestern Wild Carrot APIACEAE N Lomatium orientale Coulter & Rose Eastern Desert- Parsley APIACEAE N Spermolepis echinata (Nuttall ex A.P. de Candolle) Heller Bristly Scaleseed APOCYONACEAE N Asclepias asperula (Decaisne) Woodson Spider Milkweed N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

APOCYONACEAE N Asclepias emoryi (Greene) Vail Emery's Comet APOCYONACEAE N Asclepias oenotherioides Chamisso & Schlectendal Zizotes Milkweed APOCYONACEAE N Asclepias subverticillata (Gray) Vail Horsetail Milkweed N nana (Gray) Reveal & King Dwarf Desert Holly ASTERACEAE N Acourtia wrightii (Gray) Reveal & King Wright's Desert Holly ASTERACEAE N Aldama cordifolia (A. Gray) EE. Schilling & Panero Heart-Leaf Goldeneye ASTERACEAE N dissecta (Gray) Rydberg Ragged-Leaf Bahia ASTERACEAE N Ambrosia acanthicarpa Hooker Bur Ragweed ASTERACEAE N Ambrosia confertiflora A.P. de Candolle Weak-Leaf Ragweed ASTERACEAE N Aphanostephus ramosissimus A.P. de Candolle var. humilis Low Faintcrown (Bentham) Turner & Birdsong ASTERACEAE N Artemisia ludoviciana Nuttall var. Wormwood ASTERACEAE N Baccharis pteronioides A.P. de Candolle Yerba-De-Pasmo ASTERACEAE N Baccharis salicifolia (Ruiz & Pavon) Persoon Willow Baccharis ASTERACEAE N Baccharis sarothoides Gray Broom Seep Willow ASTERACEAE N Baccharis thesioides Humboldt, Bonpland, & Kunth Arizona Seep Willow ASTERACEAE N Bahia absinthifolia Bentham Hairy-Seed Bahia ASTERACEAE N Bahia biternata Gray Slim-Lobe Bahia ASTERACEAE N Baileya multiradiata Harvey & Gray ex Gray Desert Marigold ASTERACEAE N Berlandiera lyrata Bentham Lyre-Leaf Greeneyes, Chocolate-Flower ASTERACEAE N californica (Torrey & Gray) Torrey Brickellbush ASTERACEAE N Brickellia eupatorioides (Linnaeus) Shinners var. False Boneset corymbosa (Torrey and Gray) Shinners ASTERACEAE N Brickellia floribunda Gray Chihuahuan Brickellbush ASTERACEAE N Brickellia laciniata Gray Cut-Leaf Brickellbush ASTERACEAE N Brickellia lemmonii Gray var. lemmonii Lemmon's Brickllbush ASTERACEAE N Brickellia microphylla (Nuttall) Gray var. scabra Gray Little-Leaf Brickellbush ASTERACEAE N Psilostrophe tagetina (Nuttall) Greene Paper-Flower ASTERACEAE N Calycoseris wrightii Gray Wright's Tackstem ASTERACEAE I Centaurea melitensis Linnaeus Malta Starthistle ASTERACEAE N Chaetopappa ericoides (Torrey) Nesom Sand Aster ASTERACEAE N Chaenactis stevioides Hooker & Arnott Desert Pincushion ASTERACEAE N Cirsium neomexicanum Gray New Thistle ASTERACEAE N Cirsium ochrocentrum Gray var. martinii (P. Barlow-Irick) Martin's Thistle Keil ASTERACEAE N Cirsium undulatum (Nuttall) Sprengel Wavy-Leaf Thistle ASTERACEAE N Conyza canadensis (Linnaeus) Cronquist Horseweed ASTERACEAE N Cosmos parviflorus (Jacquin) Persoon Southwestern Cosmos N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

ASTERACEAE N Dyssodia papposa (Ventenat) Hitchcock Fetid-Marigold ASTERACEAE N Ericameria laricifolia (Gray) Shinners Turpentine Bush ASTERACEAE N divergens Torrey & Gray Spreading Fleabane ASTERACEAE N Erigeron tracyi Greene Running Fleabane ASTERACEAE N Flourensia cernua A.P. de Candolle Tarbush ASTERACEAE N Gaillardia pulchella Fougeroux Firewheel ASTERACEAE N Gutierrezia microcephala (A.P. de Candolle) Gray Thread-Leaf Snakeweed ASTERACEAE N Gutierrezia sarothrae (Pursh) Britton & Rusby Broom Snakeweed ASTERACEAE N Gutierrezia wrightii A. Gray Wright's Snakeweed ASTERACEAE N Hedosyne ambrosiifolia (A. Gray) Strother Ragged Marsh- Elder ASTERACEAE N Helianthus annuus L. Common Sunflower ASTERACEAE N Heliomeris longifolia (B.L. Robinson & J.L. Greenman) Long-Leaf Cockerell var. annua Goldeneye ASTERACEAE N Heterosperma pinnatum Cavanilles Wing-Petal ASTERACEAE N Heterotheca subaxillaris (Lamarck) Britton & Rusby var. Camphorweed latifolia (Buckley) Gandhi & R.D. Thomas ASTERACEAE N Hymenopappus filifolius Hooker Fine-Leaf Woolywhite ASTERACEAE N Hymenothrix wislizeni Gray Trans-Pecos Thimblehead ASTERACEAE N Hymenoxys odorata A.P. de Candolle Poison Rubberweed ASTERACEAE N Isocoma tenuisecta Greene Burroweed ASTERACEAE N Laennecia coulteri (A. Gray) Nesom Coulter's Woolwort ASTERACEAE N Lasianthaea podocephala (Gray) Baker San Pedro Daisy ASTERACEAE N Layia glandulosa (Hooker) Hooker & Arnott White Tidytips ASTERACEAE N Leuciva dealbata (A. Gray) Rydberg Wooly Marsh-Elder ASTERACEAE N Machaeranthera tanacetifolia (Kunth) Nees Tahoka-Daisy ASTERACEAE N Malacothrix fendleri Gray Fendler's Desert- Dandelion ASTERACEAE N Melampodium leucanthum Torrey & Gray Plains Blackfoot - Daisy ASTERACEAE N Parthenium incanum Kunth Mariola ASTERACEAE N angustifolia Torrey var. Lemonweed ASTERACEAE N Pectis cylindrica (Fernald) Rydberg Sonoran Chinchweed ASTERACEAE N Cavanilles Dwarf Lemonweed ASTERACEAE N Pseudognaphalium canescens (A.P. de Candolle) W.A. Wright's Rabbit Weber Tobacco ASTERACEAE N Pseudognaphalium stramineum (Kunth) W.A. Weber Cotton-Batting- ASTERACEAE N Psilostrophe tagetina (Nuttall) Greene Paper-Flower (Nuttall) Greene ASTERACEAE N Rafinesquia neomexicana Gray Desert Chicory ASTERACEAE N Sanvitalea aberti Gray Abert's Dome ASTERACEAE N Schkuhria pinnata(Lamarck) Kuntze ex Thellung var. Wislizenus's wislizeni (Gray) B.L. Turner threadleaf ASTERACEAE N Senecio flaccidus Lessing var. flaccidus Thread-Leaf N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

Groundsel ASTERACEAE N Stephanomeria pauciflora (Torrey) A. Nelson Few-Flowered Wire Lettuce ASTERACEAE N Thelesperma megapotamicaum (Sprengel) Kuntze -Tea ASTERACEAE N Thymophylla acerosa (A.P. de Candolle) Strother Prickle-Leaf Dogwood ASTERACEAE N Thymophylla pentachaeta (A.P. de Candolle) Small var. Parralena ASTERACEAE N Trixix californica Kellogg California Threefold ASTERACEAE N Uropappus lindleyi (A.P. de Candolle) Nuttall Silverpuffs ASTERACEAE N Verbesina encelioides (Cavanilles) Bentham & Hooker var. Golden Crownbeard exauriculata B.L. Robinson & J.L. Greenman ASTERACEAE N Xanthisma gracile (Nuttall) Morgan & Hartman Slender Sleep-Daisy ASTERACEAE N Xanthisma spinulosum (Pursh) Morgan & Hartman Sleep-Daisy ASTERACEAE N Xanthium strumarium Linnaeus var. Rough Cocklebur ASTERACEAE N Zinnia grandiflora Nuttall Plains Zinnia BORAGINACEAE N Cryptantha barbigera (Gray) Greene Bearded Cat-Eye BORAGINACEAE N Cryptantha cinerea (Greene) Cronquist James's Cat's-Eye BORAGINACEAE N Cryptantha crassisepala (Torrey & Gray) Greene var. Thick-Sepal Cat's- elachanthta I.M. Johnston Eye BORAGINACEAE N Cryptantha micrantha (Torrey) I.M. Johnston Red-Root Cat's-Eye BORAGINACEAE N Cryptantha pterocarypa (Torrey) Greene Winged Cat-Eye BORAGINACEAE N Lappula occidentalis (S. Watson) Greene var. occidentalis Spiny Sheepbur BORAGINACEAE N Lithospermum incisum Lehmann Fringed Gromwell BORAGINACEAE N Plagiobotrys arizonicus (Gray) Greene ex Gray Arizona Popcorn- Flower BORAGINACEAE N Nama hispidum Gray Purple Roll-Leaf, Sandbells BORAGINACEAE N Phacelia bombycina Wooton & Standley Mangus Spring Scorpion-Weed BORAGINACEAE N Phacelia caerulea Greene Sky-Blue Scorpion Weed BORAGINACEAE N Phacelia popei Torrey & Gray Pope's Scorpion Weed BRASSICACEAE N Descurainia pinnata (Walter) Britton ssp. ochroleuca Western Tansy- (Wooton) Detling Mustard BRASSICACEAE N Dimorphocarpa wislizeni (Engelmann) Rollins Spectacle-Pod BRASSICACEAE N Halimolobus diffusus (Gray) O.E. Schulz Fissurewort BRASSICACEAE N Lepidium sp. Peppergrass BRASSICACEAE N Physaria fendleri (Gray) O'Kane & Al-Shehbaz BRASSICACEAE N Physaria gordonii (A. Gray) O'Kane & Al-Shehbaz var. Gordon's Bladderpod BRASSICACEAE I Sisymbrium irio Linnaeus London Rocket CACTACEAE N Coryphantha vivipara (Nuttall) Britton & Rose Spinystar CACTACEAE PL Cylindropuntia imbricata (Haworth) F.M. Knuth var. imbricata CACTACEAE N Cylindropuntia spinosior (Engelmann) F.M. Knuth Walking-Stick Cholla CACTACEAE PL Echinocereus coccineus Engelmann Scarlet Hedgehog- Cactus N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

CACTACEAE N Echinocereus fendleri (Engelmann) Engelmann ex Fendler's Hedgehog Rumpler Cactus CACTACEAE N Ferocactus wislizeni (Engelmann) Britton & Rose Fish-Hook Barrel Cactus CACTACEAE N Mammillaria heyderi Muehlenpfordt var. Nipple-Cactus CACTACEAE N Mammillaria wrightii Engelmann var. Wilcox's Nipple- Cactus CACTACEAE PL Opuntia basilaris Engelmann & J.M. Bigelow Beavertail Cactus CACTACEAE N Opuntia chlorotica Engelmann & Bigelow Clock-Face Prickly Pear CACTACEAE N Opuntia engelmannii Salm-Dyck ex Engelmann var. Engelmann's engelmannii Prickly Pear CACTACEAE PL Opuntia engelmannii Salm-Dyck ex Engelmann var. Cow's Tongue linguiformis (Griffiths) Parfitt & Pinkava Prickly Pear CACTACEAE N Opuntia macrocentra Engelmann Purple Prickly-Pear CACTACEAE N Opuntia phaeacantha Engelmann Plains Prickly-Pear CACTACEAE N Opuntia polyacantha Haworth Starvation Prickly- Pear CACTACEAE N Opuntia cf. pottsii Salm-Dyck Pott's Prickly-Pear CANNABACEAE N Celtis reticulata Torrey Western Hackberry, Netleaf Hackberry CARYOPHYLLACEAE N Drymaria leptophylla (Chamisso & Schlechtendal) Fenz ex Canyon Drymary Rohrbach CONVOLVULACEAE N Convolvulus equitans Bentham Bindweed CONVOLVULACEAE N Evolvulus nuttallianus Roemer & Schultes Shaggy Morning Glory CONVOLVULACEAE N Evolvulus sericeus (Swartz) var. sericeus Silvery Morning- Glory CONVOLVULACEAE N Ipomoea costellata Torrey Crested Morning- Glory CONVOLVULACEAE N Ipomoea cristulata H. Hall Trans-Pecos Morning-Glory CUCURBITACEAE N Apodanthera undulata Gray Melon-Loco CUCURBITACEAE N Cucurbita foetidissima Kunth Buffalo Gourd EUPHORBIACEAE N Acalypha neomexicana Muller Argoviensis Copperleaf EUPHORBIACEAE N Chamaesyce albomarginata (Torrey & Gray) Small Rattleweed Spurge EUPHORBIACEAE N Chamaesyce hyssopifolia (Linnaeus) Small Hyssop-Leaf Spurge EUPHORBIACEAE N Chamaesyce indivisa (Engelmann) Millspaugh Royal Spurge EUPHORBIACEAE N Chamaesyce maculata (Linnaeus) Small Spotted Spurge EUPHORBIACEAE N Chamaesyce serpens (Humboldt, Bonpland, & Kunth) Small, Thyme-Leaf Small Spurge EUPHORBIACEAE N Chamaesyce serpyllifolia (Persoon) Small Thyme-Leaf Spurge EUPHORBIACEAE N Croton pottsii (Klotzch) Muller Argoviensis Leatherweed EUPHORBIACEAE N Euphorbia cuphosperma (Englemann) Boissier Hairy-Fruit Spurge EUPHORBIACEAE N Euphorbia davidii Subils David Anderson's Poinsetta EUPHORBIACEAE N Tragia ramosa Torrey Branched Noseburn FABACEAE N Euphorbia exstpulata Engelmann FABACEAE N Acaciella angustissima (Miller) Kuntze var. Prairie Acacia N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

FABACEAE N Astragalus allochrous Gray Hassayampa Milkvetch FABACEAE N Astragalus mollissimus Torrey var. Wooly Locoweed FABACEAE N Astragalus nuttallianus A.P. de Candolle Nuttall's Milkvetch FABACEAE I Caesalpinia gillesii (Wallich ex Hooker) Wallich ex D. Bird-Of-Paradise Dietrich Bush FABACEAE N Calliandra FABACEAE N Chamaecrista nictitans (Linnaeus) Moench var. leptadenia Partridge-Pea (Greenman) Gandhi & Hatch FABACEAE N Dalea albiflora Gray Ord's Prairie-Clover FABACEAE N Dalea brachystachya Gray Fort Bowie Prairie- Clover FABACEAE N Dalea formosa Torrey Feather-Plume FABACEAE N Dalea pogonathera Gray Bearded Prairie- Clover FABACEAE N Desmanthus cooleyi (Eaton) Trelease Cooley's Bundle- flower FABACEAE PL Gleditsia triacanthos Linnaeus Honey-Locust FABACEAE N Hoffmanseggia drepanocarpa A. Gray FABACEAE N Hoffmanseggia glauca (Ortega) Eijert Waxy Rush-Pea FABACEAE N Lotus greenei Ottley ex Kearney & Peebles Greene's Trefoil FABACEAE N Lotus plebius (Brandegee) Barneby New Mexico Trefoil FABACEAE N Lotus wrightii (A. Gray) Greene Wright's Trefoil FABACEAE N Lotus unifoliolatus (Hooker) Bentham Pursh's Trefoil FABACEAE N Lupinus concinnus Agardh var. concinnus Annual Lupine FABACEAE I Medicago sativa Linnaeus Alfalfa FABACEAE N Mimosa aculeaticarpa Ortega var. biuncifera (Bentham) Wait-a-Bit Bush Barneby FABACEAE N Prosopis glandulosa Torrey var. Honey Mesquite FABACEAE N Rhynchosia senna Gillies ex Hooker var. texana (Torrey & Texas Snout-Bean Gray) M.C. Johnston FABACEAE N Senna bauhinioides (Gray) Irwin & Barneby Two-Leaf Senna FABACEAE N Vicia ludoviciana Nuttall ex Torrey & Gray ssp. Slim Vetch ludoviciana FABACEAE N Vicia c.f. pulchella Kunth Sweet Vetch FAGACEAE N Quercus arizonica Sargent Arizona Oak FAGACEAE N Quercus emoryi Torrey Emory's Oak FAGACEAE N Quercus grisea Liebmann Gray Oak FAGACEAE N Quercus turbinella Greene Desert Scrub Oak FAGACEAE N Quercus grisea Liebmann x turbinella Greene Hybrid Oak FOUQUERIACEAE PL Fouquieria splendens Engelmann Ocotilla FUMARIACEAE N Corydalis aurea Willdenow ssp. occidentalis (Engelmann ex Gray) G. Ownbey GERANIACEAE I Erodium cicutarium (Linnaeus) L'Heretier ex Aiton Filaree KOBERLINACEAE N Koeberlinia spinosa Zuccarini var. spinosa Crucifixion Thorn, Crown-of-Thorns LAMIACEAE N Hedeoma False-Pennyroyal LAMIACEAE I Marrubium vulgare Linnaeus Horehound LAMIACEAE N Salvia subincisa Bentham Saw-Tooth Sage N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

LAMIACEAE N Stachys coccinea Jacquin Scarlet Hedge- Nettle LAMIACEAE N Trichostema arizonicum Gray Arizona Bluecurls LINACEAE N Linum puberulentum (Engelmann) Heller Plains Flax LOASACEAE N Mentzelia albicaulis Douglas ex Hooker White-Stem Blazingstar LOASACEAE N Mentzelia multiflora (Nuttall) Gray Adonis Blazing Star N Abutilon incanum (Link) Sweet Pelotazo MALVACEAE N Herissantia crispa (Linnaeus) Brizicky Bladder Mallow MALVACEAE N Rhynchoside physocalyx (Gray) Fryxell Buff-Petal MALVACEAE N Sida abutifolia Miller Fan-Tail MALVACEAE N angustifolia (Cavanilles) G. Don Copper Globemallow MALVACEAE N Sphaeralcea cf. coccinea (Nuttall) Rydberg Globemallow MALVACEAE N Sphaeralcea grossulariifolia (Hooker & Arnott) Rydberg Goose-berry var. pedata (Torrey ex Gray) Kearny Globemallow MALVACEAE N Sphaeralcea incana Torrey ex Gray Soft Globemallow MALVACEAE N Sphaeralcea laxa Wooton & Standley Caliche Globemallow MALVACEAE N Sphaeralcea leptophylla (Gray) Rydberg Scaly Globemallow MALVACEAE N Sphaeralcea hastulata Gray Wrinkled Globemallow MOLLUGINACEAE I Mollugo cerviana (Linnaeus) Seringe Thread-Stem Carpetweed MOLLUGINACEAE N Mollugo verticillata Linnaeus Green Carpetweed MORACEAE N Morus microphylla Buckley Texas Mulberry NYCTAGINACEAE N Aclesianthes chenopodioides (A. Gray) R.A. Levin Goosefoot Moonpod NYCTAGINACEAE N Allionia incarnata Linnaeus var. incarnata Trailing Windmills NYCTAGINACEAE N Boerhavia coccinea Miller Scarlet Spiderlings NYCTAGINACEAE N Boerhavia torreyana (S. Watson) Standley Torrey's Spiderling NYCTAGINACEAE Boerhavia triquetra S. Watson var. intermedia (M.E. Jones) Spellenberg NYCTAGINACEAE Mirabilis albida (Walter) Heimerl NYCTAGINACEAE N Mirabilis linearis (Pursh) Heimerl Ribbon Four- O'Clock NYCTAGINACEAE N Mirabilis oxybaphoides (Gray) Gray Spreading Four- O'Clock OLEACEAE N Fraxinus velutina Torrey Velvet Ash OLEACEAE N Menodora scabra Gray Rough Menodora ONAGRACEAE N Oenothera albicaulis Pursh White-Stem Evening Primrose ONAGRACEAE N Oenothera caespitosa Nuttall ex Fraser Tufted Evening Primrose ONAGRACEAE N Oenothera curtiflora W.L. Wagner & Hoch Velvet-Weed ONAGRACEAE N Oenothera hartwegii (Bentham) Raven Hartweg's Sundrops ONAGRACEAE N Oenothera primiveris Gray subsp. primiveris Early Evening Primrose ONAGRACEAE N Oenothera suffrutescens (Seringe) W.L. Wagner & Hoch Scarlet - Blossom N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

OROBANCHACEAE N Castilleja sessiliflora Pursh Great Plains Indian Paintbrush PAPAVERACEAE N Argemone pleicantha Greene subsp. pleicantha Southwestern Prickly-Poppy PEDALIACEAE N Proboscidea parviflora (Wooton) Wooton & Standley Wooton's Devil's Claw PLANTAGINACEAE N Nuttallanthus texanus (Scheele) D.A. Sutton Texas Toadflax PLANTAGINACEAE N Penstemon fendleri Torrey & Gray Fendler's Beardtongue PLANTAGINACEAE N Plantago patagonica Jacquin Wooly Plantain POLEMONIACEAE N Eriastrum diffusum (Gray) Mason Miniature Wooly- Star POLEMONIACEAE N Gilia c.f. inconspicua (J.E. Smith) Sweet Shy Gilia POLEMONIACEAE N Giliastrum acerosum (A. Gray) Rydberg Spiny Blue-Bowls POLEMONIACEAE N Giliastrum rigidulum (Bentham) Rydberg Blue-Bowls POLEMONIACEAE N Ipomopsis longiflora (Torrey) V. Grant ssp. Blue Trumpets POLEMONIACEAE N Leptosiphon aureus (Nuttall) J.M. Porter & L.A. Johnson Golden Desert- Trumpets POLYGALACEAE N Polygala obscura Bentham Velvet-Seed Milkwort POLYGLACEAE N Polygala lindheimeri Gray Shrubby Milkwort POLYGONACEAE N Eriogonum abertianum Torrey in Emory var. Abert's Wild Buckwheat POLYGONACEAE N Eriogonum effusum Nuttall Spreading Wild- Buckwheat POLYGONACEAE N Eriogonum polycladon Bentham Sorrell Wild- Buckwheat POLYGONACEAE N Eriogonum wrightii Torrey ex Bentham Bastard-Sage, Wright's Wild Buckwheat POLYGONACEAE N Rumex hymenosepalus Torrey Canaigre, Sand Dock PORTULACACEAE N Portulaca halimoides Linnaeus Silk-Cotton Purslane PORTULACACEAE I Portulaca oleracea Linnaeus subsp. Garden Purslane PORTULACACEAE N Portulaca suffrutescens Engelmann Shrubby Purslane PORTULACACEAE N Portulaca umbraticola Kunth subsp. lanceolata Chinese Hats (Englemann) Matthews PRIMULACEAE N Androsace occidentalis Pursh Western Rock- RANUNCULACEAE N Delphinium wootonii Rydberg Wooton's Larkspur RHAMNACEAE N Condalia correllii M.C. Johnston Correll's Snakewood RHAMNACEAE N Condalia warnockii M.C. Johnston Crucillo, Warnock Condalia RHAMNACEAE N Ziziphus obtusifolius (Hooker ex Torrey & Gray) Gray Lotebush, Graythorn ROSACEAE N Fallugia paradoxa (D. Don) Endlicher ex Torrey Apache-Plume RUBIACEAE N Galium microphyllum Gray Bracket-Leaf Bedstraw RUBIACEAE N Houstonia rubra Cavanilles Red Bluets SAPINDACEAE N Sapindus drummondii Hooker & Arnott Soapberry N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

SAPINDACEAE PL Ungnadia speciosa Endlicher Mexican Buckeye SCROPHULARIACEAE I Verbascum thapsus Linnaeus Moth Mullein SIMAROUBACEAE I Ailanthus altissima (Miller) Swingle Tree-Of-Heaven SOLANACEAE N Chamaesaracha conoides (Moricand ex Dunal) Britton Gray Five-Eyes SOLANACEAE N Chamaesaracha sordida (Dunal) Gray Hairy Five-Eyes SOLANACEAE I Datura quercifolia Kunth Oak-Leaf Thorn- Apple SOLANACEAE N Datura wrightii Hort ex Regel Sacred Thorn-Apple SOLANACEAE N Lycium berlandieri Dunal Silver Wolfberry SOLANACEAE N Lycium pallidum Miers Pale Wolfberry SOLANACEAE N Nicotiana trigonophylla Dunal Desert Tobacco SOLANACEAE N Physalis hederifolia Gray Ivy-Leaf Ground- Cherry SOLANACEAE N Solanum elaeagnifolium Cavanilles Silverleaf Nightshade SOLANACEAE N Solanum heterodoxum Dunal var. Melon-Leaf Nightshade TALINACEAE N Talinum aurantiacum Engelmann Orange Fameflower VERBENACEAE N Aloysia wrightii (Gray) Heller ex Abrams Wright's Beebush VERBENACEAE N Glandularia bipinnatifida (Nuttall) Nuttall var. Dakota Vervain VERBENACEAE N Verbena bracteata Lagasca & Rodriguez Carpet Vervain VIOLACEAE N Hybanthus verticillata (Ortega) Baillon Baby Slippers ZYGOPHYLLACEAE I Kallstroemia parviflora Norton Warty Caltrop ZYGOPHYLLACEAE N Larrea tridentata (Sesse & Mocino ex A.P. de Candolle) Creosote Coville var. tridentata ZYGOPHYLLACEAE I Peganum harmala Linnaeus African-Rue ZYGOPHYLLACEAE I Tribulus terrestris Linnaeus Puncture Vine AGAVACEAE PL Agave lechuguilla Torrey Lechuguilla AGAVACEAE PL Agave palmeri Engelmann Palmer's Agave AGAVACEAE N Agave parryi Engelmann var. Parry's Agave AGAVACEAE N Yucca baccata Torrey var. baccata Banana Yucca AGAVACEAE N Yucca elata Engelmann Soaptree Yucca AGAVACEAE PL Yucca madrensis Gentry Sierra Madre Yucca ALLIACEAE N Allium c.f. macropetalum Rydberg Arizona Onion AMARYLLIDACEAE N Zephyranthes longifolia Hemsley Zephyr-Lily CYPERACEAE N Cyperus cf. odoratus Linnaeus Rusty Flat-Sedge CYPERACEAE N Cyperus sphaerolepis Boeckeler Rusby's Flat-Sedge JUNCACEAE N Juncus tenuis Willdenow Poverty Rush NOLINACEAE N Dasylirion wheeleri S. Watson Common Sotol, Desert Spoon NOLINACEAE PL Nolina microcarpa S. Watson Beargrass POACEAE N Aristida adscensionis Linnaeus Six-WeeksThree- Awn POACEAE N Aristida arizonica Vasey Arizona Three-Awn POACEAE N Aristida divaricata Humboldt & Bonpland ex Willdenow Poverty Three-Awn POACEAE N Aristida havardii Vasey Havard's Three- Awn N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

POACEAE N Aristida purpurea Nuttall var. fendleriana (Steudal) Vasey Fendler Three-Awn POACEAE N Aristida purpurea Nuttall var. longiseta (Steudel) Vasey Red Three-Awn POACEAE N Aristida ternipes Cavanilles var. ternipes Spidergrass POACEAE N Aristida ternipes Cavanilles var. gentilis Hook Threean POACEAE N Bothriochloa barbinodes (Lagasca) Herter Cane Bluestem POACEAE I Bothriochloa bladhii (Retzius) S.T. Blake Australian Bluestem POACEAE I Bothriochloa ischaemum (Linnaeus) Keng var. songarica King Ranch (Ruprecht ex Fischer & Meyer) Celerier & Harlan Bluestem POACEAE N Bothriochloa laguroides (A.P. de Candolle) Herter Silver Bluestem POACEAE N Bothriochloa springfieldii (Gould) Parodi Springfield's Bluestem POACEAE N Bouteloua aristidoides (Kunth) Grisebach var. aristidoides Needle Grama POACEAE N Bouteloua barbata Lagasca var. barbata Sixweeks Grama POACEAE N Bouteloua curtipendula (Michaux) Torrey var. Sideoats Grama POACEAE N Bouteloua eriopoda (Torrey) Torrey Black Grama POACEAE N Bouteloua gracilis (Willdenow ex Kunth) Lagasca ex Blue Grama Griffiths POACEAE N Bouteloua hirsuta Lagasca Hairy Grama POACEAE N Cenchrus spinifex Cavanilles Coastal Sandbur POACEAE I Chloris virgata Swartz Showy Windmillgrass POACEAE I Cynodon dactylon (Linnaeus) Persoon Bermuda Grass POACEAE N Dasyochloa pulchella (Kunth) Willdenow ex Rydberg Fluffgrass POACEAE N Digitaria californica (Bentham) Henrard Arizona Cottontop POACEAE N Distichilis spicata (Linnaeus) Greene Inland Saltgrass POACEAE N Elioneurus barbiculmus Hackel Woolyspike Balsamscale POACEAE N Elymus longifolius (Smith) Gould Longleaf Squirreltail POACEAE N Enneapogon desvauxii Desvaux ex Beauvois Spike Pappusgrass POACEAE I Eragrostis barrelieri Daveau Mediterranean Lovegrass POACEAE I Eragrostis cilianensis (Allioni) Lutati ex Janchen Stinkgrass POACEAE I Eragrostis curvula var. curvula (Schrader) Nees var. Weeping Lovegrass curvula POACEAE N Eragrostis intermedia A.S. Hitchcock Plains Lovegrass POACEAE I Eragrostis lehmanniana Nees Lehmann Lovegrass POACEAE N Eragrostis mexicana (Hornemann) Link subsp. mexicana Mexican Lovegrass POACEAE N Eragrostis pectinacea (Michaux) Nees ex Steudel var. Tufted Lovegrass, pectinacea Carolina Lovegrass POACEAE N Eriochloa acuminata (Presl) Kunth var. acuminata Texas Cupgrass POACEAE N Hesperostipa comata (Trinius & Ruprecht) Barkworth ssp. Needle-and-Thread POACEAE N Hesperostipa neomexicana (Thurber) Barkworth New Mexico Feathergrass POACEAE N Hopia obtusa (Kunth) Zuloaga & Morrone Vine Mesquite POACEAE N Leptochloa dubia (Kunth) Nees Green Sprangetop POACEAE N Lycurus setosus(Nuttall) C. Reeder Bristly Wolftail POACEAE N Muhlenbergia arenicola Buckley Sand Muhly N – Native; E – Exotic; P - Planted

VASCULAR FLORA OF CITY OF ROCKS STATE PARK (2004-2016) by William Norris, Timothy Geddes, Javier Kirker, Gene Jercinovic and George Cox Updated Dec. 27 2016

POACEAE N Muhlenbergia emersleyi Vasey Bullgrass POACEAE N Muhlenbergia fragilis Swallen Delicate Muhly POACEAE N Muhlenbergia porteri Scribner ex Beal Bush Muhly POACEAE N Muhlenbergia torreyi (Kunth) A.S. Hitchcock ex Bush Ring Muhly POACEAE N Muhlenbergia repens (J. Presl) A.S. Hitchcock Creeping Muhly POACEAE N Munroa squarrosa (Nuttall) Torrey False-Buffalograss POACEAE N Panicum cf. hallii Vasey var. Hall's Panicum POACEAE N Piptochaetium fimbriatum (Kunth) Hitchcock Pinon Ricegrass POACEAE N Pleuraphis mutica Buckley Tobosa POACEAE N Puccinellia nuttalliana (Schultes) A.S. Hitchcock Nuttall's Alkali Grass POACEAE N Schizachyrium cirratum (Hackel) Wooton & Standley Texas Bluestem POACEAE N Schizachyrium scoparium (Michaux) Hash Little Bluestem POACEAE N Scleropogon brevifolius Philippi Burrograss POACEAE N Setaria leucopila (Scribner & Merrill) K. Schumann Plains Lovegrass POACEAE I Setaria viridis (Linnaeus) Beauvois Green Bristlegrass POACEAE N Sporobolus contractus A.S. Hitchcock Spike Dropseed POACEAE N Sporobolus cryptandrus (Torrey) Gray Sand Dropseed POACEAE N Sporobolus wrightii Munro ex Scribner Giant Sacaton POACEAE N Vulpia octoflora (Walter) Rydberg var. Sixweeks Fescue

N – Native; E – Exotic; P - Planted