Authors: Tom Schweich

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Families: 67
Genera: 231
Species: 352
Total Taxa (details): 352
Chenopodium album L. - Lamb's-Quarters
Allium cernuum Roth - Nodding Onion
Rhus trilobata Nutt. - skunkbush sumac
Aletes acaulis (Torr.) Coult. & Rose - Stemless Indian-Parsley
Conium maculatum L. - Poison-Hemlock
Lomatium orientale Coult. & Rose - Oriental Desert-Parsley
Asclepias speciosa Torr. - Showy Milkweed
Asclepias viridiflora Raf. - Green Comet Milkweed
Muscari botryoides (L.) Mill. - Common Grape-Hyacinth
Yucca glauca Nutt. - Soapweed Yucca
Achillea millefolium L. - common yarrow
Acroptilon repens (L.) DC. - Russian knapweed
Agoseris glauca (Pursh) Raf. - Pale Goat-Chicory
Ambrosia psilostachya DC. - Perennial Ragweed
Ambrosia tomentosa Nutt. - Skeleton-Leaf Burr-Ragweed
Ambrosia trifida L. - Great Ragweed
Antennaria parvifolia Nutt. - Little-Leaf Pussytoes
Antennaria rosea Greene - Rosy Pussytoes
Arnica fulgens Pursh - Shining Leopardbane
Artemisia campestris L. - Pacific Wormwood
Artemisia dracunculus L. - Dragon Wormwood
Artemisia filifolia Torr. - Silver Sagebrush
Artemisia frigida Willd. - Prairie Sagebrush
Artemisia ludoviciana Nutt. - White Sagebrush
Carduus nutans L. - Nodding Plumeless-Thistle
Centaurea diffusa Lam. - White Knapweed
Crepis occidentalis Nutt. - Large-Flower Hawk's-Beard
Erigeron flagellaris A. Gray - Trailing Fleabane
Erigeron tracyi Greene - Running Fleabane
Gaillardia aristata Pursh - Great Blanket-Flower
Helianthus annuus L. - Common Sunflower
Helianthus pumilus Nutt. - Little Sunflower
Heterotheca villosa (Pursh) Shinners - Hairy False Golden-Aster
Hymenopappus filifolius Hook. - Fine-Leaf Woollywhite
Lactuca serriola L. - Prickly Lettuce
Liatris punctata Hook. - Dotted Gayfeather
Nothocalais cuspidata (Pursh) Greene - Wavy-Leaf Prairie-Dandelion
Scorzonera laciniata L. - Cut-Leaf Viper-Grass
Senecio integerrimus Nutt. - Lamb-Tongue Ragwort
Solidago missouriensis Nutt. - Missouri Goldenrod
Solidago nana Nutt. - Baby Goldenrod
Solidago speciosa Nutt. - Showy Goldenrod
Symphyotrichum falcatum (Lindl.) G.L. Nesom - Rough White Prairie American-Aster
Symphyotrichum porteri (A. Gray) G. L. Nesom - Smooth White American-Aster
Townsendia grandiflora Nutt. - Large-Flower Townsend Daisy
Tragopogon dubius Scop. - Meadow Goat's-Beard
Berberis repens Lindl. - Creeping Oregon-Grape
Corylus cornuta Marshall - Beaked Hazelnut
Cryptantha virgata Payson - Miner's-Candle
Heliotropium curassavicum L. - Seaside Heliotrope
Lithospermum incisum Lehm. - Fringed Gromwell
Phacelia heterophylla Pursh - Variable-Leaf Scorpion-Weed
Alyssum simplex Rudolphi - European Madwort
Arabis pycnocarpa M. Hopkins - Hairy Eared Rockcress
Arabis pycnocarpa var. pycnocarpa - Hairy Eared Rockcress
Barbarea vulgaris W. T. Aiton - Garden Yellow-Rocket
Camelina microcarpa Andrz. ex DC. - Little-Pod False Flax
Erysimum asperum (Nutt.) DC. - Prairie Wallflower
Erysimum cheiranthoides L. - Worm-Seed Wallflower
Lepidium draba L. - Heart-Pod Pepperwort
Lepidium perfoliatum L. - Clasping Pepperwort
Physaria montana Greene - Mountain Bladderpod
Physaria vitulifera Rydb. - Round-Tip Bladderpod
Rorippa tenerrima Greene - Modoc Yellowcress
Sisymbrium altissimum L. - Tall Hedge-Mustard
Sisymbrium loeselii L. - False London Rocket
Thlaspi arvense L. - Field Pennycress
Turritis glabra L. - Tower-Mustard
Echinocereus viridiflorus Engelm. - Nylon Hedgehog Cactus
Opuntia polyacantha Haw. - Hair-Spine Prickly-Pear
Campanula rotundifolia L. - Bluebell-of-Scotland
Celtis reticulata Torr. - Net-Leaf Hackberry
Humulus lupulus L. - Common Hop
Cerastium arvense L. - Field Mouse-Ear Chickweed
Eremogone fendleri (A. Gray) Ikonn. - Fendler's Matted Sandwort
Saponaria officinalis L. - Bouncing-Bett
Peritoma serrulata (Pursh) DC. - Rocky Mountain Beeplant
Convolvulus arvensis L. - Field Bindweed
Sedum lanceolatum Torr. - Lance-Leaf Stonecrop
Juniperus scopulorum Sarg. - Rocky Mountain Juniper
Carex douglasii Boott - Douglas' Sedge
Carex duriuscula C.A. Mey. - Spike-Rush Sedge
Carex inops L. H. Bailey - Long-Stolon Sedge
Carex nebrascensis Dewey - Nebraska Sedge
Carex praegracilis W. Boott - Clustered Field Sedge
Eleocharis compressa Sull. - Flat-Stem Spike-Rush
Schoenoplectus lacustris (L.) Palla - Common Wood Club-Rush
Cystopteris fragilis (L.) Bernh. - Brittle Bladder Fern
Equisetum hyemale L. - Tall Scouring-Rush
Euphorbia esula L. - Leafy Spurge
Euphorbia marginata Pursh - Snow-on-the-Mountain
Euphorbia myrsinites L. - Myrtle Spurge
Tragia ramosa Torr. - Branched Noseburn
Astragalus drummondii Douglas - Drummond's Milk-Vetch
Astragalus laxmannii Jacq. - Laxmann's Milk-Vetch
Astragalus parryi C.Anders. - Parry's Milk-Vetch
Astragalus shortianus Nutt. - Short's Milk-Vetch
Dalea candida Michx. ex Willd. - White Prairie-Clover
Dalea purpurea Vent. - Violet Prairie-Clover
Glycyrrhiza lepidota Pursh - American Licorice
Lupinus argenteus Pursh - Silver-Stem Lupine
Medicago lupulina L. - Black Medick
Melilotus albus Medik. - White Sweet-Clover
Melilotus officinalis (L.) Lam. - Yellow Sweet-Clover
Oxytropis lambertii Pursh - Stemless Locoweed
Pediomelum tenuiflorum (Pursh) A. N. Egan - Slender-Flower Indian-Breadroot
Psoralidium tenuiflorum (Pursh) Rydb. - Slender-Flower Indian-Breadroot
Securigera varia (L.) Lassen - Purple Crown-Vetch
Vicia americana Muhl. ex Willd. - American Purple Vetch
Vicia villosa Roth - Winter Vetch
Geranium caespitosum James - Purple Cluster Crane's-Bill
Ribes aureum Pursh - Golden Currant
Ribes cereum Douglas - White Squaw Currant
Hypericum perforatum L. - Common St. John's-Wort
Sisyrinchium montanum Greene - Strict Blue-Eyed-Grass
Juncus bufonius L. - Toad Rush
Marrubium vulgare L. - White Horehound
Mentha arvensis L. - American Wild Mint
Mentha spicata L. - Spearmint
Monarda pectinata Nutt. - Plains Beebalm
Prunella vulgaris L. - Common Selfheal
Scutellaria brittonii Porter - Britton's Skullcap
Calochortus gunnisonii S. Watson - Gunnison's Mariposa-Lily
Linum lewisii Pursh - Prairie Flax
Linum perenne L. - Blue Flax
Mentzelia speciosa Osterh. - Jeweled Blazingstar
Zigadenus venenosus S. Watson - Meadow Poison Camus
Claytonia rosea Rydb. - western springbeauty
Phemeranthus parviflorus (Nutt.) Kiger - Prairie False Fameflower
Mirabilis linearis (Pursh) Heimerl - Narrow-Leaf Four-O'clock
Epilobium ciliatum Raf. - Fringed Willowherb
Oenothera brachycarpa A. Gray - Short-Fruit Evening-Primrose
Oenothera caespitosa Nutt. - Tufted Evening-Primrose
Castilleja linariifolia Benth. - Wyoming Indian-Paintbrush
Orobanche fasciculata Nutt. - Clustered Broomrape
Corydalis aurea Willd. - Scrambled-Eggs
Collinsia parviflora Lindl. - Small-Flower Blue-Eyed Mary
Gratiola neglecta Torr. - Clammy Hedge-Hyssop
Linaria dalmatica (L.) P. Mill. - Dalmatian Toadflax
Penstemon secundiflorus Benth. - Sidebells Beardtongue
Penstemon virens Pennell ex Rydb. - Front Range Beardtongue
Penstemon virgatus A. Gray - Upright Blue Beardtongue
Plantago patagonica Jacq. - Woolly Plantain
Veronica anagallis-aquatica L. - Blue Water Speedwell
Veronica arvensis L. - Corn Speedwell
Veronica biloba L. - Two-Lobe Speedwell
Veronica serpyllifolia L. - Thyme-Leaf Speedwell
Aegilops cylindrica Host - Jointed Goat Grass
Agropyron cristatum (L.) Gaertn. - Crested Wheat Grass
Alopecurus aequalis Sobol. - Short-Awn Meadow-Foxtail
Alopecurus geniculatus L. - Marsh Meadow-Foxtail
Aristida purpurea Nutt. - Purple Three-Awn
Bromus inermis Leyss. - Smooth Brome
Bromus japonicus Thunb. - Japanese Brome
Bromus polyanthus Scribn. - Great Basin Brome
Bromus tectorum L. - Cheat Grass
Dactylis glomerata L. - Orchard Grass
Elymus canadensis L. - Nodding Wild Rye
Elymus elymoides (Raf.) Swezey - Western Bottle-Brush Grass
Elymus glaucus Buckley - Blue Wild Rye
Hordeum jubatum L. - Fox-Tail Barley
Hordeum murinum L. - Wall Barley
Hordeum pusillum Nutt. - Little Barley
Koeleria macrantha (Ledeb.) Schult. - Prairie Koeler's Grass
Munroa squarrosa (Nutt.) Torr. - False Buffalo Grass
Phleum pratense L. - Common Timothy
Poa bulbosa L. - Bulbous Blue Grass
Poa compressa L. - Flat-Stem Blue Grass
Poa palustris L. - Fowl Blue Grass
Poa pratensis L. - Kentucky Blue Grass
Puccinellia distans (Jacq.) Parl. - Spreading Alkali Grass
Vulpia octoflora (Walter) Rydb. - Eight-Flower Six-Weeks Grass
Gilia ophthalmoides Brand - Eyed Gily-Flower
Phlox longifolia Nutt. - Long-Leaf Phlox
Phlox multiflora A. Nels. - Rocky Mountain Phlox
Eriogonum alatum Torr. - Winged Wild Buckwheat
Eriogonum arcuatum Greene - Baker's Wild Buckwheat
Eriogonum effusum Nutt. - Spreading Wild Buckwheat
Eriogonum flavum Nutt. - Alpine Golden Wild Buckwheat
Eriogonum umbellatum Torr. - Sulphur-Flower Wild Buckwheat
Polygonum aviculare L. - Yard Knotweed
Rumex crispus L. - Curly Dock
Potamogeton nodosus Poir. - Long-Leaf Pondweed
Androsace occidentalis Pursh - Western Rock-Jasmine
Dodecatheon pulchellum (Raf.) Merr. - Darkthroat Shootingstar
Clematis ligusticifolia Nutt. - Deciduous Traveler's-Joy
Delphinium carolinianum Walter - Carolina Larkspur
Delphinium geyeri Greene - Geyer's Larkspur
Delphinium virescens Nutt. - Carolina larkspur
Myosurus minimus L. - Tiny Mousetail
Ranunculus aquatilis L. - White Water-Crowfoot
Ranunculus aquatilis var. diffusus With. - Short-Beak Water-Crowfoot
Ranunculus cymbalaria Pursh - Alkali Buttercup
Ranunculus sceleratus L. - Cursed Buttercup
Cercocarpus montanus Raf. - Alder-Leaf Mountain-Mahogany
Potentilla fissa Nutt. - Big-Flower Woodbeauty
Potentilla norvegica L. - Norwegian Cinquefoil
Potentilla rivalis Nutt. - Brook Cinquefoil
Prunus domestica Thunb. - European Plum
Prunus virginiana L. - Choke Cherry
Rosa arkansana Porter - Prairie Rose
Rubus deliciosus Torr. - Delicious Raspberry
Galium aparine L. - Sticky-Willy
Galium boreale L. - Northern Bedstraw
Galium triflorum Michx. - Fragrant Bedstraw
Populus angustifolia James - Narrow-Leaf Cottonwood
Salix amygdaloides Andersson - Peach-Leaf Willow
Salix exigua Nutt. - Narrow-Leaf Willow
Acer glabrum Torr. - Rocky Mountain Maple
Acer negundo L. - Ash-Leaf Maple
Acer saccharinum L. - Silver Maple
Micranthes rhomboidea (Greene) Small - Diamond-Leaf Pseudosaxifrage
Limosella aquatica L. - Awl-Leaf Mudwort
Scrophularia lanceolata Pursh - Lance-Leaf Figwort
Verbascum thapsus L. - Great Mullein
Selaginella densa Rydb. - Dense Spike-Moss
Selaginella underwoodii Hieron. - Underwood's Spike-Moss
Physalis hederifolia A. Gray - Ivy-Leaf Ground-Cherry
Physalis virginiana Mill. - Virginia Ground-Cherry
Solanum rostratum Dunal - Horned Nightshade
Ulmus pumila L. - Siberian Elm
Viola canadensis L. - Canadian White Violet
Viola nuttallii Pursh - Yellow Prairie Violet
Vitis riparia Michx. - River-Bank Grape
Woodsia oregana D. C. Eaton - Oregon Cliff Fern
Tribulus terrestris L. - Puncturevine