The Rose Creek Reserve, located north of Pullman, is maintained by The Nature Conservancy as a rare remnant of natural Palouse vegetation, including shrub steppe and riparian areas.

* = Introduced species
• = Taxonomy of family updated

Plant families are listed alphabetically.

Scientific Name:	Common Name:
Amaranthaceae	Amaranth family
Amaranthus albus L.	Tumbling amaranth or pigweed
Amaranthus graecizans L.	Prostrate pigweed
Apiaceae •	Carrot family
Conium maculatum L. *	Poison hemlock
Heracleum lanatum Michx.	Cow parsnip
Lomatium dissectum (Nutt. ex T. & G.) Mathias & Const.	Desert parsley
Lomatium gormanii (Howell) J. M. Coult. & Rose	Pepper and salt
Lomatium grayi (J. M. Coult. & Rose) J. M. Coult. & Rose	Gray's desert parsley
Lomatium triternatum (Pursh) J. M. Coult & Rose	Narrow-leaved desert parsley
Perideridia gairdneri (H. & A.) Math.	Wild caraway
Asteraceae •	Sunflower family
Achillea millefolium L.	Yarrow; milfoil
Agoseris glauca (Pursh) Raf.	Goat chicory
Agoseris grandiflora (Nutt.) Greene	False dandelion; goat chicory
Agoseris heterophylla (Nutt.) Greene	False dandelion; goat chicory
Antennaria luzuloides T. & G.	Pearly everlasting
Anthemis cotula L. *	Dog fennel; May weed
Arctium minus (Hill) Bernh. *	Burdock
Artemisia absinthium L. *	Absinthe; wormwood
Artemisia ludoviciana Nutt. ssp. ludoviciana	Wormwood; sagebrush
Balsamorhiza sagittata (Pursh) Nutt.	Balsamroot
Bidens cernua L.	Begger ticks
Centaurea cyanus L. *	Bachelor's button; cornflower
Cichorium intybus L. *	Chicory
Cirsium arvense (L.) Scop. *	Canada thistle
Cirsium brevifolium Nutt.	Palouse thistle
Cirsium vulgare (Savi) Tenore *	Bull thistle
Erigeron filifolius (Hook.) Nutt.	Fleabane; daisy
Gaillardia aristata Pursh	Blanket flower
Gnaphalium palustre Nutt.	Cudweed
Helianthella uniflora (Nutt.) T. & G.	False sunflower
Hieracium scouleri Hook. var. albertinum (Farr.) G.W. Douglas & G.A. Allen	Hawkweed
Lactuca serriola L. *	Prickly or China lettuce
Lagophylla ramosissima Nutt.	Slender rabbit-leaf
Madia citriodora Greene	Lemon-scented tarweed
Madia gracilis (Smith) Keck	Slender tarweed
Matricaria matricarioides (Less.) Porter	Pineapple weed
Microseris nutans (Hook.) Schultz-Bip.	Nodding microseris
Senecio hydrophilus Nutt.	Groundsel; ragwort
Senecio hydrophiloides Rydb.	Groundsel; ragwort
Senecio integerrimus Nutt.	Tall ragwort
Senecio serra Hook.	Groundsel; ragwort
Solidago canadensis L.	Northern goldenrod
Soldiago missouriensis Nutt. var. missouriensis	Goldenrod
Sonchus asper (L.) Hill *	Spiny sowthistle
Sonchus oleraceus L.*	Annual sowthistle
Symphiotrichum spathulatum (Lindl.) Nesom var. intermedium (A. Gray) Nesom (= Aster occidentalis (Nutt.) T. & G. var. occidentalis	Western Aster
Tanacetum vulgare L. *	Tansy
Taraxacum officinale Web. ex Wig. *	Dandelion
Tragopogon dubius Scop. *	Salsify
Tragopogon pratensis L. *	Meadow salsify
Wyethia amplexicaulis (Nutt.) Nutt.	Mule's ears; Pik
Berberidaceae •	Barberry family
Berberis repens Lindl.	Small Oregon Grape
Boraginaceae •	Borage family
Amsinckia menziesii (Lehm.) Nels. & Macbr.	Fiddleneck; fireweed, tarweed
Asperugo procumbens L. *	Madwort
Cryptantha torreyana (Gray) Greene	Nievitas
Lithospermum arvense L. *	Field gromwell; stoneseed
Lithospermum ruderale Dougl. ex Lehm.	Cat's-tooth; lemon weed, puccoon
Mertensia longiflora Greene	Bluebells
Myosotis micrantha Pall ex Lehm. *	Forget-Me-Not
Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. penicillatus (Greene) Cronq.	Popcorn flower
Brassicaceae	Mustard family
Arabis glabra (L.) Bernh.	Tower mustard
Athysanus pusillus (Hook.) Greene	Sandweed
Barbarea orthocerus Ledeb.	Winter cress
Camelina microcarpa Andrz. *	False flax
Capsella bursa-pastoris (L.) Medic. *	Shepherd's purse
Descurainia sophia (L.) Webb. *	Flixweed
Draba verna L.	Whitlow grass
Erysimum cheiranthoides L. *	Wormseed mustard
Erysimum repandum L. *	Bushy wallflower
Sisymbrium altissimum L. *	Jim Hill or tumble mustard
Thlaspi arvense L. *	Fanweed, field pennycress
Caprifoliaceae •	Honeysuckle family
Lonicera ciliosa (Pursh) DC.	Orange-flowered honeysuckle
Sambucus cerulea Raf.	Blue elderberry
Symphoricarpos albus (L.) Blake var. albus	Snowberry
Caryophyllaceae	Pink family
Arenaria congesta Nutt.	Dense-flowered sandwort
Arenaria congesta Nutt.	Dense-flowered sandwort
Arenaria stricta Michx.	Slender sandwort
Cerastium viscosum L. *	Sticky mouse-ear chickweed
Cerastium vulgatum L. *	Common mouse-ear chickweed
Holosteum umbellatum L. *	Jagged chickweed
Lychnis alba Mill. *	White campion
Silene douglasii Hook.	Douglas campion
Silene menziesii Hook.	Catchfly
Silene scouleri Hook.	Scouler's silene
Stellaria longipes Goldie	Starwort
Vaccaria segetalis (Neck.) Garcke ex Asch. *	Cow cockle
Chenopodiaceae	Goosefoot family
Chenopodium album L. *	Lamb's-quarters
Clusiaceae	St. Johnswort family
Hypericum perforatum L. *	St. Johnswort; goatweed
Convolvulaceae •	Morning glory family
Convolvulus arvensis L. *	Field bindweed; morning glory
Cornaceae •	Dogwood family
Cornus sericea L.	Red-osier dogwood
Cyperaceae •	Sedge family
Carex sp. 1	Sedge
Carex sp. 2	Sedge
Eleocharis sp.	Spike rush
Dipsacaceae •	Teasel family
Dipsacus fullonum L. (= D. sylvestris Huds.) *	Wild teasel
Equisetaceae •	Horsetail Rush family
Equisetum arvense L.	Field or common horsetail
Fabaceae •	Pea family
Astragalus canadensis L.	Milk vetch
Astragalus succumbens Dougl.	Columbia milk vetch
Lathyrus bijugatus White	Wild sweet pea
Lotus purshianus (Benth.) Clem. & Clem.	Spanish clover
Lupinus leucophyllus Dougl.	Woolly-leaved lupine
Lupinus sericeus Pursh	Silky lupine
Medicago lupulina L. *	Black medic; hop clover
Trifolium arvense L. *	Rabbit-foot clover
Trifolium hybridum L. *	Alsike clover
Trifolium repens L. *	White clover
Vicia americana Muhl.	American vetch
Vicia villosa Roth. *	Hairy vetch
Fumariaceae •	Fumitory family
Dicentra cucullaria (L.) Bernh.	Dutchman's breeches
Gentianaceae •	Gentian family
Frasera albicaulis Dougl. ex Griseb.	Columbo
Gentiana affinis Griseb.	Prairie gentian
Hydrocharitaceae •	Frog's-bit family
Elodea canadensis Michx.	Canadian water-weed
Hydrophyllaceae •	Waterleaf family
Hydrophyllum capitatum Dougl. ex Benth.	Purple cat's-breeches
Hydrophyllum fendleri (Gray) Heller	White-flower cat's breeches
Phacelia hastata Dougl. ex Lehm.	Whiteleaf phacelia
Iridaceae •	Iris family
Iris missouriensis Nutt.	Western blue iris
Sisyrinchium douglasii A. Dietr. var. inflatum (Suksd.) P. Holmgren (= S. inflatum (Suksd.) St. John)	Grass widows; blue-eyed grass
Juncaeae •	Rush family
Juncus bufonius L.	Toad rush
Juncus confusus Cov.	Colorado rush
Lamiaceae •	Mint family
Agastache urticifolia (Benth.) Kuntze.	Giant hyssop
Lamium amplexicaule L. *	Henbit; dead nettle
Marrubium vulgare L. *	Horehound
Mentha arvensis L.	Mint
Nepeta cataria L. *	Catnip
Prunella vulgaris L. *	Heal-all; self-heal
Scutellaria angustifolia Pursh	Skullcap
Liliaceae •	Lily family
Allium acuminatum Hook.	Wild onion
Calochortus elegans Pursh	Cat's ear
Camassia quamash (Pursh) Greene	Camas
Erythronium grandiflorum Pursh	Lamb's-tongue; dog-tooth violet
Fritillaria pudica (Pursh) Spreng.	Yellow bell
Smilacina racemosa (L.) Desf.	False Solomon's-seal
Trillium petiolatum Pursh	Purple trillium
Triteleia grandiflora Lindl. (= Brodiaea douglasii Wats.)	Wild hyacinth
Veratrum californicum Dur. var. californicum	False hellebore
Zigadenus venenosus S. Watson var. gramineus (Rydb.) Walsh ex M.E. Peck	Grassy death camas
Linaceae •	Flax family
Linum lewisii Pursh	Wild blue flax
Malvaceae	Mallow family
Malva neglecta Wallr. *	Cheeseweed
Sidalcea oregana (Nutt. ex T.& G.) Gray	Wild hollyhock
Onagraceae •	Evening primrose family
Clarkia pulchella Pursh.	Deer horn; ragged robin
Chamerion angustifolium (L.) Holub (= Epilobium angustifolium L.)	Fireweed; great willow herb
Epilobium ciliatum Raf. var. glandulosum (Lehm.) Dorn	Glandular willow weed
Epilobium densiflorum (Lindl.) Hoch. & P.H. Raven (= Boisduvalia densiflora (Lindl.) Wats.	Vernal-pool candle; spike-primrose
Epilobium brachycarpum C. Presl. (= E. paniculatum Nutt. ex T.& G.)	Small willow herb
Gaura parviflora Dougl. ex Lehm.	Velvet weed
Gayophytum nuttallii T. &G. (? - possible misidentification)
Orobanchaceae •	Broomrape family
Orobanche uniflora L.	One-flowered broomrape
Papaveraceae •	Poppy family
Papaver argemone L. *	Wild poppy; headache
Pinaceae •	Pine family
Pinus ponderosa Doug. ex P.& C. Lawson	Yellow or bull pine
Plantaginaceae	Plantain family
Plantago lanceolata L. *	English plantain; buckthorn plantain
Poaceae •	Grass family
Agrostis stolonifera L. *	Redtop
Agrostis scabra Willd.	Rough bentgrass; tickle grass
Alopecurus pratensis L. *	Meadow foxtail
Apera interrupta (L.) Beauv. *	Satan’s hair
Arrhenatherum elatius (L.) J. Presl. & C. Presl. *	Tall oat-grass
Avena fatua L. *	Wild oat
Bromus briziformis Fisch. & Mey. *	Rattlesnake brome
Bromus carinatus Hook. & Arn.	California brome
Bromus inermis Leyss. *	Smooth brome
Bromus marginatus (? uncertain i.d.)	Mountain brome
Bromus secalinus L. *	Chess; cheat
Bromus tectorum L. *	Cheat; downy brome
Dactylis glomerata L. *	Orchard grass
Danthonia spicata (L.) Beauv.	Poverty oatgrass
Echinochloa crusgalli (L.) Beauv. *	Barnyard grass; water grass
Elymus trachycaulus (Link) Shinners ssp. subsecundum (Link) Gould	Bearded wheatgrass
Elymus trachycaulus (Link) Shinners ssp. trachycaulus	Slender wheatgrass
Festuca idahoensis Elmer	Idaho fescue
Koeleria macrantha (Ledeb.) Schultes	June grass
Leymus cinereus (Scribn. & Merr.) A. Löve (= Elymus cinereus Scribn. & Merr.)	Basin wild rye
Phalaris arundinacea L.	Reed canary grass
Phleum pratense L. *	Timothy
Poa bulbosa L. *	Bulbous bluegrass
Poa compressa L. *	Canadian bluegrass
Poa palustris L. *	Fowl bluegrass
Poa pratensis L. *	Kentucky bluegrass
Polypogon monspeliensis (L.) Desf. *	Rabbit-foot grass
Polemoniaceae •	Phlox family
Collomia grandiflora Dougl. ex Lindl.	Salmon-colored collomia
Collomia linearis Nutt.	Pink collomia
Navarretia intertexta (Benth.) Hook.	Skunk-weed
Phlox gracilis (Hook.) Greene	Pink eye
Phlox speciosa Pursh	Phlox
Polygonaceae	Buckwheat family
Eriogonum heracleoides Nutt.	Wild buckwheat
Polygonum aviculare L. *	Door weed; knot grass
Polygonum convolvulus L. *	Black bindweed; wild buckwheat
Polygonum douglasii Greene	Knotweed
Polygonum lapathifolium L. *	Pale smartweed
Rumex acetosella L. *	Sheep sorrel
Rumex crispus L. *	Curly dock
Portulacacaeae	Purslane family
Claytonia perfoliata Donn.	Miner's lettuce
Montia linearis (Dougl.) Greene	Narrow-leaved miner's lettuce
Potomogetonaceae •	Pondweed family
Potomogeton sp.	Pondweed
Primulaceae	Primrose family
Dodecatheon pulchellum (Raf.) Merr.	Bird-bill; shooting star
Ranunculaceae •	Buttercup family
Clematis hirsutissima Pursh	Sugar bowl
Delphinium distichum Geyer ex Hooker	Meadow larkspur
Delphinium nuttallianum Pritzel	Upland larkspur
Ranunculus arvensis L. *	Field buttercup
Ranunculus glaberrimus Hook.	Spring flowering buttercup
Ranunculus uncinatus D. Don	Buttercup
Thalictrum occidentale Gray	Meadow rue
Rosaceae •	Rose family
Amelanchier alnifolia (Nutt.) Nutt. ex M. Roan	Service berry
Crataegus douglasii Lindl.	Black hawthorn
Fragaria virginiana Miller	Pale strawberry
Geum macrophyllum Willd.	Large-leaf avens
Potentilla glandulosa Lindl.	Sticky cinquefoil
Potentilla gracilis Dougl. ex Hook.	Five-finger; cinquefoil
Prunus virginiana L.	Choke cherry
Rosa nutkana C. Presl.	Nootka rose
Rosa woodsii Lindl.	Wild rose
Sanguisorba annua (Nutt. ex Hook.) Torr. & A. Gray	Burnet
Rubiaceae •	Madder family
Galium aparine L.	Cleavers
Galium boreale L.	Northern bedstraw
Galium triflorum Michx.	Three-flowered bedstraw
Salicaceae	Willow family
Populus tremuloides Michx.	Quaking aspen
Salix exigua Nutt.	Slender, sandbar, or coyote willow
Salix rigida var. mackenzieana (Hook.) Cronq.	Mackenzie willow
Saxifragaceae •	Saxifrage family
Heuchera cylindrica Dougl. ex Hook.	Alumroot
Lithophragma glabrum Nutt.	Baby face
Lithophragma parviflorum (Hook.) Nutt. ex Torr. & A. Gray	Baby’s breath
Saxifraga sp.	Saxifrage
Scrophulariaceae •	Figwort family
Besseya rubra (Dougl.) Rydb.	Red besseya
Castilleja cusickii Greenm.	Cusick’s paintbrush
Castilleja lutescens (Greenm.) Rydb.	Pale paintbrush
Collinsia parviflora Dougl. ex. Lindl.	Bluelips
Mimulus guttatus DC.	Yellow monkey flower
Penstemon confertus Dougl. ex Lindl.	Yellow beard-tongue
Scrophularia lanceolata Pursh	Figwort
Verbascum thapsus L. *	Common mullein
Veronica americana Schwein ex. Benth.	American brookline
Veronica arvensis L. *	Corn speedwell
Veronica peregrina L.	Neckweed
Solanaceae •	Nightshade family
Solanum sarrachoides Sendt ex Mart. *	Hairy nightshade
Solanum triflorum Nutt.	Cut-leaved nightshade
Typhaceae •	Cat-tail family
Typha latifolia L.	Cat-tail
Urticaceae •	Nettle family
Urtica dioica L.	Tall nettle
Valerianaceae •	Valerian family
Plectritis macrocera T.&G.	Longhorn plectritis
Valeriana edulis Nutt. ex T. & G.	Tobacco root; Masawah
Verbenaceae •	Verbena or vervian family
Verbena bracteata Lag. & Rodr.	Bracted verbena; vervian
Violaceae	Violet family
Viola adunca Sm.	Blue violet