American Penstemon Society/Utah Native Plant Society Annual Meeting Vernal, Utah June 2-5, 2017 Plant Species Seen on Field Trips Nomenclature follows Uinta Flora Sherel Goodrich & Allen Huber, 2014 (with some synonyms)

Beth Corbin, Wayne Padgett, Mindy Wheeler, Andrey Zharkikh, Pam Camp, & Mike Hagebusch V 1.3

Field Trip West of Vernal: Name Common Family Abronia elliptica (fragrans) sand-verbena Nyctaginaceae Agropyron cristatum crested wheatgrass Poaceae Allium textile textile onion Liliaceae (Amaryllidaceae) Androstephium breviflorum purple funnel-lily Liliaceae (Asparigaceae) Aristida purpurea purple three-awn Poaceae Artemisia frigida fringed sagebrush Asteraceae Asclepias cryptoceras pallid milkweed Asclepiadaceae Astragalus ceramicus painted milkvetch Fabaceae Astragalus chamaeleuce circada milkvetch Fabaceae Astragalus convallarius lesser rushy milkvetch Fabaceae Astragalus duchesnensis Duchesne milkvetch Fabaceae Astragalus flavus var. flavus yellow milkvetch Fabaceae Astragalus hamiltonii Hamilton milkvetch Fabaceae Astragalus spatulatus draba milkvetch Fabaceae Atriplex argentea silverscale Chenopodiaceae (Amaranthaceae) Atriplex confertifolia shadscale Chenopodiaceae Atriplex corrugata mat saltbush Chenopodiaceae Atriplex gardneri Gardner saltbush Chenopodiaceae Bromus tectorum cheatgrass Poaceae Calochortus nuttallii sego lily Liliaceae Camissonia scapoidea barestem camissonia Onagraceae Castilleja chromosa desert paintbrush Scrophulariaceae (Orobanchaceae) Caulanthus crassicaulis thickstemmed wild cabbage Brassicaceae Chaenactis stevioides annual dusty-maiden Asteraceae Chaetopappa (Leucelene) ericoides heath aster Asteraceae Chamaesyce fendleri Fendler euphorb Euphorbiaceae Chrysopsis (Heterotheca) villosa hairy goldenaster Asteraceae Chrysothamnus nauseosus (Ericameria rubber rabbitbrush Asteraceae nauseosa) Cordylanthus kingii ssp. densiflorus King birdsbeak Scrophulariaceae (Orobanchaceae) Cryptantha flava yellow cryptantha Boraginaceae Cryptantha kelseyana Kelsey cryptantha Boraginaceae Cryptantha paradoxa paradox cryptantha Boraginaceae Cryptantha pterocarya winged cryptantha Boraginaceae Cymopterus duchesnensis Uinta basin spring parsley Apiaceae Cymopterus glomeratus var. acaulis (C. plains spring parsley Apiaceae acaulis) Cymopterus purpurascens widewing spring parsley Apiaceae Delphinium geyeri Geyer larkspur Ranunculaceae Delphinium nuttallianum low larkspur Ranunculaceae Elymus (Pascopyrum) smithii western wheatgrass Poacaeae Elymus elymoides (Sitanion hystrix ssp. squirreltail Poaceae hordeoides) Enceliopsis nutans noddinghead Asteraceae Ephedra torreyana Torrey Mormon tea Ephedraceae Eremogone (Arenaria) hookeri Hooker sandwort Caryophyllaceae Erigeron pulcherrimus basin daisy Asteraceae Eriogonum brevicaule var. viridulum Uinta basin buckwheat Polygonaceae Eriogonum gordonii Gordon buckwheat Polygonaceae Eriogonum inflatum var. fusiforme desert trumpet Polygonaceae Eriogonum shockleyi var. longilobum Shockley buckwheat Polygonaceae Eriogonum umbellatum var. aureum sulfur buckwheat Polygonaceae (umbellatum) Gilia (Aliciella) stenothyrsa Uinta Basin gilia Polemoniaceae Gilia inconspicua shy gilia Polemoniaceae Grayia spinose spiny hopsage Chenopodiaceae Halogeton glomeratus halogeton Chenopodiaceae Helianthus petiolaris prairie sunflower Asteraceae Hilaria (Pleuraphis) jamesii galleta Poaceae Hordeum marinum rabbit barley Poaceae Hymenopappus filifolius var. cinereus fineleaf hymenopappus Asteraceae Ipomopsis (Gilia) congesta ballhead gilia Polemoniaceae Ipomopsis polycladon spreading gilia Polemoniaceae Ipomopsis pumila dwarf gilia Polemoniaceae Junperus osteosperma Utah juniper Cupressaceae Lappula occidentalis (L. redowskii) desert stickseed Boraginaceae Lepidium montanum var. jonesii mountain pepperplant Brassicaceae Linum puberulum puberulent yellow flax Linaceae Lupinus pusillus var. pusillus dwarf lupine Fabaceae Lygodesmia grandiflora var. grandiflora showy rushpink Asteraceae Machaeranthera (Xanthisma) discoid aster Asteraceae grindelioides var. grindelioides Mentzelia multicaulis var. uintahensis many-stem blazingstar Loasaceae Oenothera caespitosa tufted evening-primrose Onagraceae Oenothera pallida pale evening-primrose Onagraceae Onobrychis viciifolia common sainfoin Fabaceae Opuntia polyacantha Plains pricklypear Cactaceae Pediomelum megalanthum large-flowered breadroot Fabaceae Penstemon angustifolius var. vernalensis narrowleaf penstemon Scrophulariaceae (Plantaginaceae) Penstemon duchesnensis Duchesne penstemon Scrophulariaceae Penstemon flowersii Flower’s penstemon Scrophulariaceae Penstemon goodrichii Goodrich penstemon Scrophulariaceae Phacelia crenulata crenulate phacelia Hydrophyllaceae Phacelia demissa var. minor brittle phacelia Hydrophyllaceae Physaria acutifolia common twinpod Brassicaceae Plantago patagonica Indian-wheat Plantaginaceae Platyschkuhria (Bahia) integrifolia var. basindaisy Asteraceae ourolepis Sarcobatus vermiculatus black greasewood Chenopodiaceae (Sarcobataceae) Sedum lanceolatum lanceleaf stonecrop Crassulaceae Senecio multilobatus (Packera lobe-leaf groundsel Asteraceae multilobata) Sphaeralcea coccinea scarlet globemallow Malvaceae Stephanomeria runcinata desert wirelettuce Asteraceae Stipa (Hesperostipa) comata var. comata needle-and-thread Poaceae Stipa (Orozypsis/Achnatherum) Indian ricegrass Poaceae hymenoides Tetradymia nuttallii Nuttall horsebrush Asteraceae Thelesperma subnudum Navaho-tea greenthread Asteraceae Townsendia incana silvery townsendia Asteraceae Vulpia octoflora sixweeks fescue Poaceae Xylorhiza venusta Cisco woodyaster Asteraceae Yucca harrimaniae Harriman yucca Agaveaceae Zuckia brandegeei siltbush Chenopodiaceae

Field Trip South of Vernal: Name Common Family Abronia elliptica (fragrans) sand-verbena Nyctaginaceae Aquilegia barnebyi oil shale columbine Ranunculaceae Artemisia frigida fringed sagebrush Asteraceae Artemisia tridentata ssp. tridentata basin big sagebrush Asteraceae Artemisia tridentata ssp. wyomingensis Wyoming big sagebrush Asteraceae Asclepias cryptoceras pallid milkweed Asclepiadaceae Astragalus chamaeleuce circada milkvetch Fabaceae Astragalus pubentissimus var. Green River milkvetch Fabaceae pubentissimus Castilleja chromosa desert paintbrush Scrophulariaceae (Orobanchaceae) Castilleja scabrida var. scabrida rough paintbrush Scrophulariaceae Cercocarpus montanus alderleaf mountain mahogany Rosaceae Chamaechaenactis scaposa fullstem Asteraceae Chamaesyce fendleri Fendler euphorb Euphorbiaceae Cryptantha barnebyi Barneby cryptantha Boraginaceae Chrysothamnus nauseosus var. speciosus white rubber rabbitbrush Asteraceae (Ericameria nauseosa ssp. nauseosa var. speciosa) Chrysothamnus nauseosus (Ericameria Uinta rubber rabbitbrush Asteraceae nauseosa) var. uintahensis Cirsium barnebyi Barneby thistle Asteraceae Cryptantha rollinsii Rollins cryptantha Boraginaceae Elymus (Leymus) salinus Salina wildrye Poaceae Eremogone (Arenaria) hookeri Hooker sandwort Caryophyllaceae Eriogonum ephedroides ephedra buckwheat Polygonaceae Euphorbia brachycera shorthorn spurge Euphorbiaceae Gilia (Aliciella) pinnatifida sticky gilia Polemoniaceae Gilia (Aliciella) stenothyrsa Uinta Basin gilia Polemoniaceae Glossopetalon spinescens var. Utah greasebush Crossomataceae mionandrum Gutierrezia sarothrae broom snakeweed Asteraceae Haplopappus (Stenotus) acaulis stemless goldenweed Asteraceae Haplopappus (Stenotus) armerioides var. thrifty goldenweed Asteraceae gramineus Hymenoxys (Tetraneuris) acaulis stemless woollybase Asteraceae Ipomopsis aggregata var. aggregata scarlet gilia Polemoniaceae Juniperus osteosperma Utah juniper Cupressaceae Lepidium perfoliatum clasping peppergrass Brassicaceae Linum lewisii wild blue flax Linaceae Machaeranthera (Xanthisma) discoid aster Asteraceae grindelioides var. grindelioides Mentzelia goodrichii Tavaputs blazingstar Loasaceae Parthenium ligulatum low feverfew Asteraceae Penstemon fremontii Fremont penstemon Scrophulariaceae (Plantaginaceae) Penstemon grahamii Graham penstemon Scrophulariaceae Penstemon pachyphyllus var. thickleaf penstemon Scrophulariaceae mucronatus (P. mucronatus) Penstemon scariosus var. albifluvis (P. White River penstemon Scrophulariaceae albifluvis) Petradoria pumila rock goldenrod Asteraceae Phlox longifolia longleaf phlox Polemoniaceae Physaria acutifolia common twinpod Brassicaceae Physaria subumbellata Rollins bladderpod Brassicaceae Pinus edulus pinyon pine Pinaceae Potentilla hippiana woolly cinquefoil Rosaceae Sisymbrium linifolium (Schoencrambe flaxleafed plainsmustard Brassicaceae linifolia) Sisymbrium loeselii Loesel tumble mustard Brassicaceae Sphaeralcea coccinea scarlet globemallow Malvaceae Stanleya pinnata var. integrifolia desert prince’s plume Brassicaceae Symphoricarpos oreophilus var. mountain snowberry Caprifoliaceae utahensis Thelesperma subnudum Navaho-tea greenthread Asteraceae Thelypodiopsis elegans elegant thelypody Brassicaceae

Field Trip North of Vernal (Monday): Name Common Family Androsace septentrionalis pygmy-flower rock-jasmine Primulaceae Antennaria dimorpha low pussytoes Asteraceae Antennaria microphylla rose pussytoes Asteraceae Artemisia tridentata ssp. vaseyana mountain big sagebrush Asteraceae Astragalus argophyllus var. martinii silverleaf milkvetch Fabaceae Astragalus convallarius lesser rushy milkvetch Fabaceae Astragalus laxmannii (A. adsurgens) standing milkvetch Fabaceae Astragalus nelsonianus Nelson milkvetch Fabaceae Astragalus spatulatus (A. simplicifolius) draba milkvetch Fabaceae Balsamorhiza hookeri Hooker balsamroot Asteraceae Castilleja linariifolia Wyoming paintbrush Scrophulariaceae (Orobanchaceae) Castilleja scabrida var. scabrida rough paintbrush Scrophulariaceae Chaenactis douglasii Douglas dusty-maiden Asteraceae Chaetopappa (Leucelene) ericoides heath aster Asteraceae Delphinium nuttallianum (D. bicolor) low larkspur Ranunculaceae Eremogone (Arenaria) hookeri Hooker sandwort Caryophyllaceae Erigeron compositus fern-leaf daisy Asteraceae Erigeron flagellaris trailing daisy Asteraceae Erigeron glabellus smooth daisy Asteraceae Erigeron pulcherrimus basin daisy Asteraceae Erigeron pumilus ssp. concinnoides var. Vernal daisy Asteraceae concinnus (E. concinnus var. condensatus) Eriogonum alatum var. alatum winged buckwheat Polygonaceae Festuca brevipila (trachyphylla) hard fescue Poaceae Haplopappus (Stenotus) acaulis stemless goldenweed Asteraceae Hymenopappus filifolius fineleaf hymenopappus Asteraceae Hymenoxys (Tetraneuris) acaulis stemless woollybase Asteraceae Hymenoxys richardsonii Colorado rubberweed Asteraceae Ipomopsis aggregata var. aggregata scarlet gilia Polemoniaceae Ipomopsis spicata spike gilia Polemoniaceae Juniperus communis common juniper Cupressaceae Lithospermum incisum fringed stoneseed Boraginaceae Lomatium triternatum nineleaf biscuit root Apiaceae Oenothera caespitosa tufted evening-primrose Onagraceae Oenothera howardii bronze evening-primrose Onagraceae Orobanche fasciculata clustered broomrape Orobanchaceae Oxytropis besseyi red loco Fabaceae Oxytropis sericea silky locoweed Fabaceae Pediocactus simpsonii mountain ball cactus Cactaceae Penstemon acaulis stemless penstemon Scrophulariaceae (Plantaginaceae) Penstemon caespitosus var. caespitosus mat penstemon Scrophulariaceae Penstemon erianthus var. cleburnei (P. Green River Basin penstemon Scrophulariaceae cleburnei) Penstemon humilis var. humilis low penstemon Scrophulariaceae Penstemon pachyphyllus var. thick leaf penstemon Scrophulariaceae mucronatus (P. mucronatus) Penstemon scariosus var. garrettii Garrett penstemon Scrophulariaceae Phacelia ivesiana Ives phacelia Hydrophyllaceae Phacelia sericea silky phacelia Hydrophyllaceae Phlox multiflora ssp. depressa many-flowered phlox Polemoniaceae Physaria acutifolia common twinpod Brassicaceae Physaria (Lesquerella) ludoviciana silver bladderpod Brassicaceae Purshia tridentata bitterbrush Rosaceae Ranunculus inamoenus pleasant buttercup Ranunculaceae Sedum lanceolatum lanceleaf stonecrop Crassulaceae Senecio canus (Packera cana) woolly groundsel Asteraceae Senecio streptanthifolius (Packera manyface groundsel Asteraceae streptanthifolia) Thermopsis montana golden pea Fabaceae Townsendia incana silvery townsendia Asteraceae Trifolium gymnocarpon hollyleaf clover Fabaceae Wyethia (Scaberthia) scabra badlands wyethia Asteraceae