|   
  
| GRASSES |  |  | 
Monument UnitS=Sheep RockP=Painted Hills
 C=Clarno
 |  
| Agropyron cristatum (L.) Gaertn | Crested wheatgrass | Non-native | S |  
| Agropyron elongatum Host. | Tall wheatgrass | Non-native | P |  
| Agropyron caninum var. latiglume (Scribn. & Smith) Hitchc. | Slender wheatgrass | Native | S |  
| Agropyron spicatum (Pursh) Scribn. & Smith | Bluebunch wheatgrass | Native | 
C, P, S |  
| Arrhenatherum elatius (L.) Presl. | Tall oatgrass | Non-native | S |  
| Bromus brizaeformis Fisch. & Mey | Rattlesnake grass | Non-native | C, P, S |  
| Bromus commutatus Schrad. | Hairy brome | Non-native | S |  
| Bromus mollis L. | Softchess | Non-native | S |  
| Bromus rubens L. | Foxtail brome | Non-native | P |  
| Bromus tectorum L. | Cheatgrass | Non-native | C, P, S |  
| Dactylis glomerata L. | Orchardgrass | Non-native | S |  
| Distichlis stricta (Torr.) Rydb. | Saltgrass | Native | S |  
| Echinochloa crusgalli (L.) Beauv. | Barnyardgrass | Non-native | S |  
| Elymus cinereus Scribn. & Merr. | Giant wildrye | Native | C, P, S |  
| Festuca idahoensis Elmer. | Idaho fescue | Native | C, S |  
| Festuca microstachys Nutt. | Nuttall's fescue | Native | C, P, S |  
| Heleochloa alopecuroides Host. | Helechloa | Non-native | S |  
| Hordeum leporinum Link. | Charming barley | Non-native | C, P ,S |  
| Koeleria cristata Pers. | Junegrass | Native | S |  
| Muhlenbergia asperifolia Parodi | Rough-leaved dropseed | Native | S |  
| Oryzopsis hymenoides (R. & S.) Richer | Indian rice grass | Native | C, S |  
| Panicum capillare L. | Witchgrass | Non-native | S |  
| Phalaris arundinacea L. | Reed canarygrass | Non-native | S |  
| Poa bulbosa L. | Bulbous bluegrass | Non-native | C, P, S |  
| Poa pratensis L. | Kentucky bluegrass | Non-native | S |  
| Poa sandbergii Vasey | Sandberg's bluegrass | Native | C, P, S |  
| Poa sp. | Bluegrass |  | S |  
| Polypogon monospeliensis (L.) Desf. | Rabbitfoot grass | Non-native | P, S |  
| Puccinellia lemmonii (Vasey) Scribn. | Alkaligrass | Native | P |  
| Setaria lutescens (Weigel) Hubb. | Yellow bristlegrass | Non-native | S |  
| Sitanion hystrix (Nutt.) Smith | Bottlebrush squirreltail | Native | C, P, S |  
| Sporobolus cryptandrus (Torr.) Gray | Sand dropseed | Native | C, P, S |  
| Stipa comata Trin. & Rupr. | Needle and threadgrass | Native | C, S |  
| Stipa thurberiana Piper | Thurber's needlegrass | Native | C, S |  
| GRASSLIKES |  |  |  |  
| Carex eurycarpa Holm | Wide-fruit sedge | Native | S |  
| Carex stipata Muhl. | Sawbeak sedge | Native | S |  
| Cyperus aristatus Rottb. | Flatsedge | Native | S |  
| Eleocharis palustris (L.) R. & S. | Creeping spike-rush | Native | S |  
| Juncus balticus Willd. | Baltic rush | Native | S |  
| Juncus bufonius L. | Toadrush | Native | S |  
| Scirpus validus Vahl. | American great bulrush | Native | S |  
| Typha latifolia L. | Common cattail | Native |  |  
| LILLIES |  |  |  |  
| Allium tolmiei Baker | Tolmie's onion | Native | P |  
| Calochortus macrocarpus Dougl. | Mariposa lilly | Native | C, P, S |  
| Fritillaria pudica (L.) R. & S. | Yellow-bell | Native | C, P, S | DICOTS 
| TREES |  |  |  |  
| Alnus rhombifolia Nutt. | White alder | Native | S |  
| Celtis reticulata | Net-leaf hackberry | Native | C, S |  
| Cercocarpus ledifolius Nutt. | Curl-leaf mahogany | Native | S |  
| Crataegus columbiana Howell | Columbia hawthorne | Native | S |  
| Elaeagnus angustifolia L. | Russian olive | Non-native | P |  
| Juniperus occidentalis Hook. | Western juniper | Native | C, P, S |  
| Pinus ponderosa Dougl. | Ponderosa pine | Native | S |  
| Populus trichocarpa T. & G. | Black cottonwood | Native | S |  
| Prunus virginiana L. | Chokecherry | Native | C, S |  
| Salix species L. | Willow | Native |  |  
| Sambucus cerulea Raf. | Blue elderberry | Native | S |  
| Ulmus pumila L. | Asiatic elm | Non-native | P, S |  
| SHRUBS |  |  |  |  
| Amelanchier alnifolia Nutt. | Western serviceberry | Native | P |  
| Artemisia arbuscula Nutt. | Low sage | Native | S |  
| Artemisia rigida (Nutt.) Gray | Scabland sage | Native | P |  
| Artemisia tridentata Nutt. | Big sagebrush | Native | C, P, S |  
| Atriplex confertifolia (Torn & Frem.) Wats. | Shadscale | Native | C, P, S |  
| Atriplex spinosa (Hook.) Collotzi | Spiny hopsage | Native | S |  
| Cornus stolonifera Michx. | Red-osier dogwood | Native | S |  
| Eriogonum microthecum Nutt. | Slenderbush buckwheat | Native | C, S |  
| Gutierrezia sarothrae (Pursh) Britt. & Rusby | Snakeweed | Native | C, P, S |  
| Leptodactylon pungens (Toor) Nutt. | Prickly phlox | Native | S |  
| Philadelphus lewisii Pursh | Syringa | Native | C, S |  
| Purshia tridentata (Pursh) D.C. | Bitterbrush | Native | S |  
| Ribes aureum Pursh | Golden currant | Native | P |  
| Ribes cereum Dougl. | Wax currant | Native | C, P, S |  
| Ribes cognatum Greene | Umatilla gooseberry | Native | C, S |  
| Rosa woodsii Lindl. | Wood's rose | Native | S |  
| Salvia dorrii (Kell.) Abrams | Purple sage | Native | C, S |  
| Sarcobatus vermiculatus (Hook.) Torr. | Greasewood | Native | P, S |  
| Tetradymia canescens D. C. | Gray horse-brush | Native | C, P, S |  
| PERENNIAL / BIENNIAL FORBS |  |  |  |  
| Achillea millefolium L. | Western yarrow | Native | C, P, S |  
| Antennaria dimorpha (Nutt.) T. & G. | Low pussytoes | Native | C, P, S |  
| Apocynum cannabinum L. | Indian hemp | Native | S |  
| Arctium minus (Hill) Bernh. | Burdock | Non-native | S |  
| Artemisia ludoviciciana Nutt. | Herbaceous sage | Native | S |  
| Asclepias speciosa Torr. | Showy milkweed | Native | S |  
| Astragalus filipes Torr. | Threadstalk milkvetch | Native | C, P, S |  
| Astragalus misellus Wats | Pauper milkvetch | Native | P |  
| Astragalus purshii Dougl. | Woollypod milkvetch | Native | C, P, S |  
| Bidens cernua L. | Beggars-ticks | Native | S |  
| Cardaria draba | Hoary cress (white top) | Non-native | P, S |  
| Castilleja applegatei var. fragilis N. Holmgr. | Wavy-leaved paintbrush | Native | S |  
| Castilleja xanthotricha Pennell | Yellow-hairy Indian paintbrush | Native | C, P |  
| Centaurea diffusa | Diffuse knapweed | Non-native |  |  
| Centaurea maculosa | Spotted knapweed | Non-native |  |  
| Centaurea repens | Russian knapweed | Non-native |  |  
| Centaurea repens L. | Russian star-thistle | Non-native | P |  
| Chaenactis douglasii H. & A. | Hoary chaenactis | Native | S |  
| Chaenactis nevii Gray | John Day chaenactis | Native | P |  
| Chrysopsis oregona (Nutt.) Gray | Oregon goldaster | Native | C |  
| Cichorium intybus L. | Chicory | Non-native | P, S |  
| Cirsium arvense | Canada thistle | Non-native |  |  
| Cirsium undulatum (Nutt.) Spreng. | Wavy-leaved thistle | Native | C |  
| Cirsium vulgare (Sav.) Tenore | Bull thistle | Non-native | C, S |  
| Clematis ligusticifolius Nutt. | Western clematis | Native | C, S |  
| Convolvulus arvensis L. | Field bindweed | Non-native | S |  
| Crepis atrabarba Heller. | Slender hawksbeard | Native | S |  
| Crepis intermedia Gray | Gray hawksbeard | Native | C |  
| Crepis occidentalis Nutt. | Western hawksbeard | Native | P |  
| Cryptantha celosoides (Eastw.) Pays | Cockscomb cryptantha | Native | P, S |  
| Dipsacus sylvestris Huds. | Teasel | Non-native | C, P, S |  
| Epilobium watsonii Barbey | Watson's willow-herb | Native | S |  
| Erigeron filifolius Nutt. | Thread-leaf fleabane | Native | C, S |  
| Erigeron linearis (Hook) Piper | Line-leaf fleabane | Native | C, P, S |  
| Erigeron philadelphicus L. | Philadelphia fleabane | Non-native | S |  
| Erigeron pumilus Nutt. | Shaggy fleabane | Native | S |  
| Eriogonum compositum Dougl. | Northern buckwheat | Native | C |  
| Eriogonum sphaerocephalum Dougl. | Rock buckwheat | Native | C, P, S |  
| Eriogonum strictum Benth | Strict buckwheat | Native |  |  
| Eriophyllum lanatum (Pursh) Forbes. | Woolly sunflower | Native | C, P, S |  
| Erysimum asperum (Nutt.) D.C. | Prairie rocket | Native | S, P |  
| Galium multiflorum Kell. | Shrubby bedstraw | Native | S |  
| Grindelia nana Nutt. | Low gumweed | Native | C, P, S |  
| Helianthus nuttallii T. & G. | Nuttal's sunflower | Native | C, P, S |  
| Heracleum lanatum | Cow parsnip | Native |  |  
| Heuchera cylindrica Dougl. | Roundleaf alumroot | Native | C, S |  
| Lactuca serriola L. | Prickly lettuce | Non-native | C, P, S |  
| Lesquerella occidentalis Wats. | Western bladderpod | Native | C, P, S |  
| Lewisia rediviva Pursh | Bitterroot | Native | P, S |  
| Linaria genistifolia | Dalmatian toadflax | Non-native |  |  
| Lithophragma bulbifera Rydb. | Prairie star | Native | C, P, S |  
| Lithospermum ruderale Dougl. | Stone seed | Native | S |  
| Lomatium grayi Coult. & Rose | Desert parsley | Native | S |  
| Lomatium hendersonii Coult. & Rose | Henderson's lomatium | Native | P |  
| Lomatium macrocarpum (Nutt.) Coult. & Rose | Large-fruit lomatium | Native | C, P, S |  
| Lomatium triternatum (Pursh) Coult. & Rose | Nine-leaf lomatium | Native | C |  
| Machaeranthera canescens (Pursh) | Gray hoary aster | Native | C |  
| Malva neglecta Wallr. | Cheeseweed | Non-native | C, P, S |  
| Marrubium vulgare L. | Horehound | Non-native | C, S |  
| Medicago sativa L. | Alfalfa | Non-native | S |  
| Mentha spicata L. | Spearmint | Non-native | P, S |  
| Mentzelia laevicaulis (Dougl.) T. & G. | Blazing star | Native | C, P, S |  
| Microseris troximoides Gray | False agoseris | Native | C, P, S |  
| Mimulus guttatus D.C. | Common yellow monkey-flower | Native | S |  
| Nicotiana attenuata Torr. | Coyote tobacco | Native | C |  
| Oenothera caespitosa Nutt. | Desert evening primrose | Native | C |  
| Oenothera tanacetifolia T. & G. | Tansy-leaf evening primose | Native | S |  
| Onopordum acanthium | Scotch thistle | Non-native |  |  
| Orobanche fasciculata Nutt. | Clustered broomrape | Native | S |  
| Penstemon deustus Dougl. | Hot-rock penstemon | Native | C |  
| Penstemon erianthus var. argillosus M.E. Jones | Crested tongue penstemon | Native | C, S |  
| Penstemon richardsonii Dougl. | Richardson's penstemon | Native | C, P, S |  
| Petalostemon ornatum Dougl. | Praire-clover | Native | C, P, S |  
| Phacelia hastata Dougl. | Silverleaf phacelia | Native | C, P, S |  
| Phacelia ramosissima Dougl. | Branched phacelia | Native | C |  
| Phlox muscoides Nutt. | Moss phlox | Native | S |  
| Phlox viscida E. Nels | Sticky phlox | Native | C |  
| Plantago lanceolata L. | Buckhorn plantain | Non-native | S |  
| Potentilla glandulosa var. campanulata Hitch. | Gland cinquefoil | Native | P, S |  
| Ranunculus aquatilis L. | Water buttercup | Native | S |  
| Ranunculus glaberrimus Hook | Sagebrush buttercup | Native | C, P, S |  
| Ranunculus sceleratus L. | Celery-leaved buttercup | Native | P |  
| Rhus radicans L. | Poison-ivy | Native | S |  
| Rorippa nasturtium-aquaticum (L.) Schinz & Thell. | Watercress | Non-native | C, P, S |  
| Rumex crispus L. | Curly dock | Non-native | S |  
| Salvia aethiopis | Mediterranean sage | Non-native |  |  
| Saponaria officinalis L. | Bouncing bett | Non-native | S |  
| Scutellaria angustifolia Pursh | Skullcap | Native | C, P, S |  
| Sedum lanceolatum Torr. | Lanceleaved sedum | Native | C, P, S |  
| Senecio canus Hook. | Woolly groundsel | Native | S |  
| Senecio serra Hook. | Butterweed groundsel | Native | S |  
| Solanum dulcamara L. | Nightshade | Non-native | S |  
| Solidago canadensis L. | Canada goldenrod | Native | S |  
| Sphaeralcea munroana (Dougl.) Spach | Globe-mallow | Native | C, P, S |  
| Stephanomeria tenuifolia (Torr.) Hall | Wire lettuce | Native | C, S |  
| Thelypodium laciniatum (Hook) Endl. | Thickleaved thelypody | Native | C, S |  
| Tragopogon dubius Scop. | Yellow salisfy | Non-native | C, P, S |  
| Trifolium pratense L. | Red clover | Non-native | S |  
| Trifolium repens L. | White clover | Non-native | S |  
| Urtica dioica L. | Stinging nettle | Non-native | P, S |  
| Verbascum thapsus L. | Flannel mullein | Non-native | C, P, S |  
| Xanthium strumarium L. | Cocklebur | Non-native | C, P, S |  
| ANNUAL FORBES |  |  |  |  
| Agoseris heterophylla (Nutt.) Greene | Annual agoseris | Native | P |  
| Alyssum alyssoides L. | Pale alyssum | Non-native | C, P, S |  
| Amaranthus graecizans L. | Pigweed | Non-native | C, S |  
| Amsinckia tessellata Gray | Fiddleneck | Non-native | C, P, S |  
| Anthemis cotula L. | Dogfennel | Non-native | S |  
| Anthriscus scandicina (Weber) Mansfeld | Chervil | Non-native | S |  
| Asperugo procumbens L. | Madwort | Non-native | S |  
| Astragalus diaphanus Dougl. | John Day milkvetch | Native | S |  
| Bassia hyssopifolia (Pall.) Kuntze | Bassia | Non-native | S |  
| Blepharipappus scaber Hook | Blepharipappus | Native | C, P, S |  
| Camelina microcarpa Andrz | Littlepod falseflax | Non-native | P |  
| Capsella bursa-pastoris (L.) Medic. | Shepard's-purse | Non-native | S |  
| Centaurea solstitials | Yellow star thistle | Non-native |  |  
| Cerastium viscosum L. | Sticky chickweed | Non-native |  |  
| Chenopodium album L. | Lambsquarters | Non-native | C, P, S |  
| Chenopodium botrys L. | Jerusalem-oak | Non-native | S |  
| Chorispora tenella (Pall.) D.C. | Blue mustard | Non-native | C, P, S |  
| Clarkia pulchella Pursh | Elkhorn clarkia | Native | C, P, S |  
| Collomia grandiflora Dougl. | Large flowered collomia | Native | P, S |  
| Conyza canadensis (L.) Cronq. | Horseweed | Non-native | S |  
| Cleome platycarpa Torr. | Golden cleome | Native | C, P |  
| Crocidium multicaule Hook | Spring gold | Native | C, P, S |  
| Cryptantha pterocarya (Torr.) Greene | Winged cryptantha | Native | C, P, S |  
| Descurainia pinnata (Walt.) Br. H. | Tansymustard | Native | C, P, S |  
| Descurainia richardsonii (Sweet) Schulz | Mt. tansymustard | Native | C, P, S |  
| Draba verna L. | Whitlow-grass | Native | C., P, S |  
| Epilobium minutum Lindl. | Small-flowered willow-herb | Native | C, P, S |  
| Eriogonum vimineum Dougl. | Broom buckwheat | Native | C, P, S |  
| Erodium cicutarium L. L'her | Filaree | Non-native | C, P, S |  
| Euphorbia serpyllifolia Pers. | Thyme-leaf purge | Non-native | C, P, S |  
| Galium aparine L. | Bedstraw | Native | S |  
| Helianthus annuus L. | Sunflower | Native | C, P |  
| Holosteum umbellatum L. | Jagged chickweed | Non-native | C, P, S |  
| Kochia scoparia | Kochia | Non-native |  |  
| Lagophylla ramosissima Nutt. | Slender rabbitleaf | Native | C, P, S |  
| Layia glandulosa (Hook.) H. & A. | Layia | Native | S |  
| Lepidium perfoliatum (Donn.) Howell |  | Non-native |  |  
| Madia gracilis (Smith) Keck | Common tarweed | Native | P, S |  
| Medicago lupulina L. | Hop clover | Non-native | S |  
| Melilotus alba Desr. | Sweet clover | Non-native | C, P, S |  
| Mentzelia albicaulis Dougl. | Small-flowered blazing star | Native | C, P, S |  
| Mimulus cusickii (Greene) Piper | Cusick's monkeyflower | Native | C, P |  
| Mimulus floribundus Lindl. | Purple-stem monkeyflower | Native | S |  
| Mimulus nanus H. & A. | Dwarf purple monkeyflower | Native | S |  
| Montia perfoliata (Donn) Howell | Miner's lettuce | Native | S |  
| Phacelia linearis (Pursh) Holz. | Thread-leaf phacelia | Native | C, P, S |  
| Phacelia lutea J. T. Howell | Yellow phacelia | Native | P |  
| Plectritis macrocera T. & G. | White plectritis | Native | C, P, S |  
| Polygonum hydropiper L. | Smartweed | Native | S |  
| Polemonium micranthum Benth. | Annual polemonium | Native | C, P, S |  
| Portulaca oleracea L. | Purslane | Non-native | S |  
| Ranunculus testiculatus Crantz | Horned buttercup | Non-native | C, P, S |  
| Salsola kali L. | Russian thistle | Non-native | C, P, S |  
| Sisymbrium altissimum L. | Jim-Hill tumblemustard | Non-native | C, P, S |  
| Tribulus terrestris L. | Puncture-vine | Non-native | C, P, S |  
| Valerianella locusta (L.) Betcke | European corn-salad | Non-native | S |  
| Veronica anagallis-aquatica L. | Water speedwell | Native | S |  
| Veronica peregrina L. | Purslane speedwell | Native | S |  
| Vicia Villosa | Hairy vetch | Non-native |  |  
| CACTI |  |  |  |  
| Opuntia polycantha Haw | Prickly-pear cactus | Native | P |  
| Pediocactus simpsonii (Engelm.) Britt & Brown | Barrel cactus | Native | P, S | CRYPTOGRAMS 
| MOSS |  |  |  |  
| Tortula ruralis Hedw. | Desert moss | Native | C, P, S |  
| FERN |  |  |  |  
| Cystopteris fragilis (L.) Bernh. | Brittle bladder fern | Native | C, P, S |  
| HORSETAIL |  |  |  |  
| Equisetum hyemale L. | Common horsetail | Native | S |  
| Equisetum pratense Ehrb. | Shady horsetail | Native | S |  
| Equisetum variegatum Schleich | Variegated horsetail | Native | S, P |   
 The columns in each table represent the Scientific Name, Common Name, identifies if the plant is Native or Non-native to the park, and the monument unit(s) the plant is found in. Plant names used follow Steward et al., 1963; Hitchock and Cronquist, 1973; and Garrison et al., 1976.   
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