Below are the flora I have observed for the first time, identified and added to the website. Click on the common name for details.

Updated in 2023

Antennaria marginata
Antennaria microphylla
Centaurea macrocephala
Cyperus erythrorhizos
Cyperus odoratus
Geranium pratense
Packera paupercula

Updated in 2022

Lotus corniculatus
Potentilla rivalis
Solidago lepida
Sophora stenophylla

Updated in 2021

Allionia incarnata
Anemone cylindrica
Artemisia franserioides
Caragana arborescens
Celtis reticulata
Chrysothamnus stylosus
Conioselinum scopulorum
Crataegus rivularis
Epilobium halleanum
Eriogonum corymbosum var. orbiculatum
Erysimum cheiranthoides
Galeopsis bifida
Geum aleppicum
Geum macrophyllum
Glyceria grandis
Grindelia fastigiata
Lupinus argenteus ssp. moabensis
Malus spp.
Muhlenbergia pungens
Parryella filifolia
Pinus flexilis
Pithophora spp.
Potentilla norvegica
Ranunculus uncinatus
Rorippa palustris
Sisyrinchium demissum
Stuckenia filiformis
Triglochin palustris
Yucca angustissima

Updated in 2020

Anemopsis californica
Castilleja nelsonii
Commelina erecta
Erythranthe glabrata
Isocoma pluriflora
Oenothera villosa
Poliomintha incana
Populus acuminata
Prunus armeniaca
Salix lutea
Salvia pratensis
Suaeda calceoliformis
Triglochin maritima

Updated in 2019

Amelanchier alnifolia var. alnifolia
Asclepias involucrata
Asclepias latifolia
Astragalus leptocarpus
Astragalus rafaelensis
Chrysothamnus depressus
Crataegus viridis
Crepis runcinata subsp. glauca
Epilobium brachycarpum
Eremogone eastwoodiae
Erigeron philadelphicus
Eruca vesicaria ssp. sativa
Galium trifidum
Hedeoma drummondii
Hedysarum occidentale
Lepidium campestre
Lepidium densiflorum
Lepidium ramosissimum
Mentzelia albicaulis
Penstemon crandallii ssp. procumbens
Penstemon linarioides ssp. coloradoensis
Pyrrocoma uniflora
Sisyrinchium pallidum
Spartina gracilis
Symphyotrichum ciliatum
Townsendia leptotes
Vicia americana ssp. minor
Vulpia octoflora
Yucca glauca

Updated in 2018

Allium macropetalum
Alopecurus aequalis
Amaranthus acanthochiton
Androsace occidentalis
Artemisia campestris ssp. pacifica
Brickellia microphylla
Carex emoryi
Chenopodium dessicatum
Cryptantha fendleri
Cyperus esculentus
Echinocereus coccineus
Erigeron ursinus
Equisetum x ferrissii
Lathyrus laetivirens
Oxytropis lambertii var. lambertii
Pedicularis crenulata
Physaria ludoviciana
Potentilla concinna
Potentilla gracilis
Schoenoplectus tabernaemontani
Spergularia salina
Taraxacum ceratophorum

Updated in 2017

Agoseris parviflora
Alopecurus arundinaceus
Alopecurus pratensis
Amphiscirpus nevadensis
Astragalus calycosus
Astragalus praelongus var. ellisiae
Beckmannia syzigachne
Brickellia eupatorioides var. corymbulosa
Carex pellita
Carex praticola
Catalpa speciosa
Cuscuta pentagona
Danthonia parryi
Dasyochloa pulchella
Elymus hispidus
Elymus lanceolatus
Halogeton glomeratus
Hesperostipa neomexicana
Hibiscus trionum
Hymenopappus filifolious var. cinereus
Ipomoea purpurea
Leymus cinereus
Lorandersonia linifolia
Orobanche corymbosa
Panicum virgatum
Peritoma multicaulis
Petasites frigidus var. sagittatus
Poa nemoralis subsp. interior
Pyrrocoma lanceolata
Purshia stansburyana
Rumex hymenosepalus
Sium suave
Typha domingensis
Yucca baileyi

Updated in 2016

Antennaria howellii Howell's Pussytoes
Bidens tripartita Three-lobed Beggarticks
Carex douglasii Douglas' Sedge
Chrysothamnus vaseyi Vasey's Rabbitbrush
Cryptantha minima Little Cryptantha
Dalea lanata var. terminalis Woolly Prairie Clover
Eleocharis acicularis Needle Spikerush
Erigeron caespitosus Tufted Fleabane
Gilia ophthalmoides Eyed Gilia
Hymenopappus filifolious var. polycephalus Manyhead Hymenopappus
Juniperus deppeana Alligator Juniper
Lupinus plattensis Nebraska Lupine
Lupinus polyphyllus var. prunophilus Chokecherry Lupine
Lupinus sericeus Silky Lupine
Mentzelia laciniata Cutleaf Blazingstar
Microsteris gracilis Slender Phlox
Palafoxia sphacelata Othake
Pedicularis canadensis var. fluviatilis Canadian Lousewort
Penstemon unilateralis (Penstemon virgatus) Oneside Penstemon
Phaseolus angustissimus Slimleaf Bean
Physalis longifolia Longleaf Groundcherry
Plantago tweedyi Tweedy's Plantain
Poa arctica Arctic Bluegrass
Rumex pulcher Fiddle Dock
Salix bebbiana Bebb's Willow
Sonchus asper Prickly Sowthistle
Stenotus armerioides Thrift Mock Goldenweed
Tetraneuris acaulis var. acaulis Stemless Four-nerved Daisy
Vinca minor Periwinkle
Zigadenus venenosum Meadow Death Camus

August 15, 2015 update

Aristida arizonica Arizona Three-Awn
Astragalus bodinii Bodin's Milkvetch
Bromus frondosus Weeping Brome
Clematis hirsutissima var. scottii Scott's Clematis
Elymus scribneri Spreading Wheatgrass
Erigeron glabellus var. pubescens Streamside Fleabane
Eriogonum cernuum Nodding Buckwheat
Eriogonum umbellatum var. porteri Porter's Sulphur Flower
Festuca brachyphylla subsp. Coloradensis Colorado Fescue
Gentiana prostrata Moss Gentian
Mertensia franciscana Franciscan Bluebells
Mertensia oblongifolia Oblongleaf Chiming Bells
Penstemon brandegeei Brandegee's Penstemon
Puccinellia nuttalliana Nuttall's Alkaligrass
Ranunculus adoneus Snow Buttercup
Salix lasiandra var. caudata Greenleaf Willow
Tetraneuris acaulis var. caespitosa Goldflower

July 2, 2015 update

Aegilops cylindrica Jointed Goatgrass
Chenopodium incanum var. elatum Mealy Goosefoot
Chenopodium incanum var. incanum Mealy Goosefoot
Cirsium arizonicum var. bipinnatum Arizona Thistle
Cirsium neomexicanum New Mexico Thistle
Erysimum inconspicuum Shy Wallflower
Malacothrix sonchoides Sowthistle Desert Dandelion
Salix gooddingii Goodding's Black Willow
Sphaeralcea hastulata Spear Globemallow

June 11, 2015 update

Aletes sessiliflorus Sessileflower Indian Parsley
Astragalus amphioxys Crescent Milkvetch
Astragalus ceramicus var. ceramicus Painted Milkvetch
Boechera gracilenta Selby's Rockcress
Calochortus nuttallii Nuttall's Mariposa Lily
Cymopterus glomeratus Fendler's Springparsley
Dalea jamesii James' Prairie Clover
Echinocereus fendleri Pinkflower Hedgehog Cactus
Erigeron concinnus Navajo Fleabane
Linum puberulum Plains Flax
Packera multilobata Lobeleaf Groundsel
Penstemon ophianthus Coiled Anther Penstemon
Penstemon saxosorum Upland Penstemon
Physaria intermedia Mid-Bladderpod
Sphaeralcea fendleri Fendler's Globemallow
Townsendia incana Hoary Townsend Daisy
Vesper montanus Mountain Spring Parsley

November 4, 2014 update

Acroptilon repens (Centaurea repens) Russian Knapweed
Ajuga reptans Common Bugle
Allium textile White Wild Onion
Arida parviflora (Machaeranthera parviflora) Small-flower Tansyaster
Andropogon hallii Sand Bluestem
Artemisia bigelovii Bigelow Sagebrush
Artemisia laciniata subsp. parryi Parry's Wormwood
Artemisia ludoviciana ssp. albula White Sagebrush
Astragalus nuttallianus var. micranthiformis Turkeypeas
Atriplex heterosperma (A. micrantha) Saltbush
Boechera pallidifolia (Arabis pallidifolia) Gunnison County Rockcress
Brickellia brachyphylla Plumed Brickellbush
Bromus secalinus Rye Brome
Calamagrostis canadensis Bluejoint
Carex hassei Salt Sedge
Carex nebrascensis Nebraska Sedge
Chamaesyce fendleri Fendler's Sandmat
Chenopodium glaucum var. salinum Oak-leaf Goosefoot
Chenopodium neomexicanum New Mexico Goosefoot
Chenopodium pratericola Desert Goosefoot
Cryptantha fulvocanescens Tawny Cryptantha
Chrysothamnus greenei Greene's Rabbitbrush
Descurainia obtusa Blunt Tansymustard
Dieteria asteroides var. asteroides Fall Tansyaster
Distichlis spicata Saltgrass
Draba rectifructa Mountain Draba
Ephedra torreyana var. torreyana Torrey's Jointfir
Eriogonum corymbosum var. velutinum Crispleaf Buckwheat
Eriogonum effusum Spreading Buckwheat
Festuca arundinacea Tall Fescue
Grindelia nuda var. aphanactis Curlytop Gumweed
Helianthus microcephalus Small Woodland Sunflower
Helianthus pauciflorus Stiff Sunflower
Houstonia rubra Red Bluet
Hymenoxys richardsonii var. floribunda Colorado Rubberweed
Ipomopsis multiflora Manyflowered Gilia
Juncus alpinoarticulatus (J. alpinus) Alpine Rush
Juncus arcticus var. mexicanus Mexican Rush
Juncus articulatus Jointleaf Rush
Juncus saximontanus Rocky Mountain Rush
Lappula occidentalis var. cupulata Flatspine Stickseed
Lappula squarrosa European Stickseed
Lepidium alyssoides Mesa Pepperwort
Lepidium latifolium Broadleaved Pepperweed
Lycium pallidum Pale Wolfberry
Machaeranthera tanacetifolia Tanseyleaf Tansy Aster
Mentzelia rusbyi Rusby's Blazingstar
Muhlenbergia thurberi Thurber's Muhly
Nama hispidum Bristly Nama
Neokochia americana Green Molly
Oenothera neomexicana New Mexico Evening Primrose
Oonopsis foliosa var. foliosa (Pyrrocoma foliosa) Leafy False Goldenweed
Orobanche ludoviciana ssp. multiflora Manyflower Broomrape
Paronychia pulvinata Alpine Nailwort
Penstemon auriberbis Colorado Penstemon
Penstemon virens Front Range Penstemon
Persicaria lapathifolia Curlytop Knotweed
Phacelia crenulata Cleftleaf Wildheliotrope
Phleum alpinum Alpine Timothy
Physaria fendleri Fendler's Bladderpod
Physaria gordonii (Lesquerella gordonii) Gordon's Bladderpod
Physaria rectipes ( Lesquerella rectipes) Straight Bladderpod
Plantago patagonica Woolly Plantain
Prunus americana Wild Plum
Ranunculus cymbalaria Alkali Buttercup
Ribes aureum Golden Currant
Rumex occidentalis Western Dock
Salix babylonica Weeping Willow
Salix laevigata (Salix bonplandiana var. laevigata) Red Willow
Salix scouleriana Scouler's Willow
Scutellaria brittonii Britton's Skullcap
Sphaeralcea grossulariifolia Gooseberryleaf Globemallow
Sporobolus contractus Spike Dropseed
Tetraneuris ivesiana Ives' Four-nerved Daisy
Thelesperma subnudum Navajo Tea
Thelypodiopsis purpusii Purpus' Tumblemustard
Thelypodium integrifolium Entireleaved Thelypody
Townsendia annua Annual Townsend Daisy
Townsendia fendleri Fendler's Townsend Daisy
Tripterocalyx wootonii Wooton's Sand Puffs
Xanthisma spinulosum var. spinulosum Spiny Goldenweed

January 3, 2014 update

Abronia fragrans Snowball Sand Verbena
Apodanthera undulata Melon Loco
Artemisia filifolia Sand Sagebrush
Artemisia nova Black Sagebrush
Bouteloua barbata Sixweeks Grama
Carex ebenea Ebony Sedge
Chamaesyce chaetocalyx var. chaetocalyx Bristlecup Sandmat
Chilopsis linearis Desert Willow
Comandra umbellata Bastard Toadflax
Crepis runcinata Barber's Hawksbeard
Cryptantha virgata Miner's Candle
Epilobium hornemannii Hornemann's Willowherb
Eriogonum leptophyllum Slenderleaf Buckwheat
Fallopia baldschuanica Russian Vine
Gaura neomexicana New Mexico Beeblossom
Heterotheca villosa var. nana Hairy Golden Aster
Juncus arcticus ssp littoralis Mountain Rush
Liatris punctata var. mexicana Mexican Gayfeather
Lupinus parviflorus Lodgepole Lupine
Lycopus americanus Water Horehound
Packera mancosana Mancos Shale Packera
Paspalum dilatatum Dallisgrass
Penstemon alpinus Alpine Sawsepal Penstemon
Penstemon angustifolius Narrow-Leaved Penstemon
Penstemon crandallii Crandall's Beardtongue
Penstemon comarrhenus Dusty Beardtongue
Persicaria maculosa Spotted Lady's-thumb
Phacelia glandulosa Glandular Phacelia
Potentilla paradoxa Paradox Cinquefoil
Psoralidium tenuiflorum Slimflower Scurfpea
Rhus glabra Smooth Sumac
Salix exigua Coyote Willow
Sarcobatus vermiculatus Greasewood
Senecio wootonii Wooton's Ragwort
Sorghastrum nutans Indiangrass
Symphyotrichum divaricatum Southern Salt Marsh Aster
Symphyotrichum oblongifolium Aromatic Aster
Symphyotrichum spathulatum Western Mountain Aster
Ulmus pumila Siberian Elm
Verbena macdougalii MacDougal Verbena
Viburnum opulus Snowball Tree
Viola adunca var. bellidifolia Mountain Blue Violet

November 23, 2012 update

Carex aquatilis Water Sedge
Carex phaeocephala Dunhead Sedge
Castilleja minor Lesser Indian Paintbrush
Centaurium arizonicum Arizona Centaury
Dimorphocarpa wislizenii Spectacle Pod
Elymus elongatus Tall Wheatgrass
Epilobium ciliatum Fringed Willowherb
Erigeron bellidiastrum Western Daisy Fleabane
Erigeron utahensis Utah Daisy
Eriogonum annuum Annual Buckwheat
Eriogonum microthecum Slender Buckwheat
Grayia spinosa Spiny Hopsage
Helianthus nuttallii Nuttall's Sunflower
Hesperostipa comata Needle-and-Thread Grass
Juncus drummondii Drummond's Rush
Juncus mertensianus Mertens' Rush
Juncus torreyi Torrey's Rush
Linum aristatum Bristle Flax
Oenothera longissima Longstem Evening Primrose
Penstemon eatonii Firecracker Penstemon
Penstemon hallii Hall's Penstemon
Polypogon monspeliensis Annual Rabbitsfoot Grass
Schoenoplectus pungens Three Square
Shepherdia argentea Silver Buffaloberry
Sonchus arvensis glabrescens Field Sowthistle
Sphaeralcea parvifolia Smallflower Globemallow
Sphaerophysa salsula Swainsonpea
Spiranthes magnicamporum Great Plains Lady's Tresses
Sisymbrium officinale Hedge Mustard
Stanleya pinnata Prince's Plume
Thelypodium wrightii Wright's Thelypody
Typha angustifolia Narrowleaved Cattail

January 29, 2012 update

Achnatherum hymenoides Indian Ricegrass
Agropyron desertorum Desert Wheatgrass
Andropogon gerardii Big Bluestem
Aristida purpurea var. longiseta Red Three-Awn
Blepharoneuron tricholepis Pine Dropseed
Bothriochloa barbinodis Cane Bluestem
Bothriochloa laguroides Silver Bluestem
Bouteloua curtipendula Side-oats Grama
Bouteloua eriopoda Black Grama
Bouteloua gracilis Blue Grama
Bouteloua hirsuta Hairy Grama
Bromus catharticus Rescue Grass
Bromus inermis Smooth Brome
Bromus tectorum Downy Brome
Buchloe dactyloides Buffalo Grass
Carex microptera Smallwing Sedge
Cenchrus longispinus Sandbur
Chloris verticillata Windmill Grass
Chloris virgata Feather Fingergrass
Dactylis glomerata Orchard Grass
Danthonia intermedia Timber Oatgrass
Echinochloa crus-galli Barnyard Grass
Echinochloa muricata var. microstachya Rough Barnyard Grass
Eleocharis palustris Common Spikerush
Elymus canadensis Canada Wild Rye
Elymus longifolius Squirreltail
Elymus repens Quackgrass
Elymus smithii Western Wheatgrass
Elymus trachycaulus Slender Wheatgrass
Eragrostis cilianensis Stinking Lovegrass
Festuca thurberi Thurber's Fescue
Hordeum jubatum Foxtail Barley
Hordeum vulgare Barley
Juncus triglumis var. albescens Northern White Rush
Koeleria macrantha Junegrass
Luzula parviflora Smallflowered Woodrush
Muhlenbergia asperiflora Scratchgrass
Muhlenbergia montana Mountain Muhly
Muhlenbergia torreyi Ring Muhly
Munroa squarrosa False Buffalo Grass
Panicum capillare Witchgrass
Phalaris arundinacea Reed Canary Grass
Phleum pratense Timothy
Pleuraphis jamesii Galleta
Poa fendleriana Muttongrass
Poa pratensis Kentucky Bluegrass
Schizachyrium scoparium Little Bluestem
Schoenoplectus acutus Hardstem Bulrush
Setaria pumila Yellow Foxtail
Setaria viridis Green Bristlegrass
Sorghum bicolor Grain Sorghum
Sporobolus cryptandrus Sand Dropseed
Trisetum spicatum Spike Trisetum
Typha latifolia Common Cattail

January 10, 2012 update

Ambrosia acanthicarpa Flatspine Bur Ragweed
Ambrosia artemisiifolia Common Ragweed
Ambrosia tomentosa Skeletonleaf Bursage
Anoda cristata Spurred Anoda
Arceuthobium vaginatum Dwarf Mistletoe
Astragalus miser Timber Milkvetch
Astragalus molybdenus Leadville Milkvetch
Bidens tenuisecta Slimlobe Beggarticks
Chenopodium fremontii Fremont's Goosefoot
Erigeron vetensis Early Bluetop Fleabane
Eriogonum lonchophyllum Spearleaf Buckwheat
Eriogonum ovalifolium Cushion Buckwheat
Forestiera pubescens New Mexico Olive
Grindelia inornata Colorado Gumweed
Helianthella uniflora One-flowered Sunflower
Jamesia americana Cliffbush
Lamium amplexicaule Henbit
Lithospermum multiflorum Manyflowered Puccoon
Lobelia cardinalis Cardinal Flower
Lotus wrightii Wright's Deervetch
Nama dichotomum Wishbone Fiddleleaf
Oxalis stricta Yellow Wood Sorrel
Pectis angustifolia Lemonscent
Pectis papposa Manybristle Chinchweed
Physalis hederifolia var. fendleri Ivyleaf Groundcherry
Ranunculus macounii Macoun's Buttercup
Salvia subincisa Sawtooth Sage
Sanvitalia abertii Abert's Dome
Saponaria officinalis Bouncing Bet
Solanum jamesii Wild Potato
Solanum nigrum Black Nightshade
Solanum rostratum Buffalo Bur
Solidago nemoralis var. longipetiolata Gray Goldenrod
Sonchus oleraceus Common Sowthistle
Thermopsis pinetorum Golden Pea
Valeriana arizonica Arizona Valerian
Xanthisma gracile Slender Goldenweed

January 17, 2011 update

Berlandiera lyrata Chocolate Flower
Berula erecta Cutleaf Waterparsnip
Brickellia eupatorioides var. corymbulosa False Boneset
Ceanothus fendleri Fendler's Buckbrush
Cordylanthus wrightii Bird's Beak
Erigeron eximius Sprucefir Fleabane
Helianthus annuus Common Sunflower
Humulus lupulus Wild Hops
Krascheninnikovia lanata Winterfat
Lactuca ludoviciana Biannual Lettuce
Melampodium leucanthum Plains Blackfoot
Mirabilis oxybaphoides Trailing Four O'Clock
Nepeta cataria Catnip
Phoradendron juniperinum Juniper Mistletoe
Physocarpus monogynus Ninebark
Pseudognaphalium canescens Wright's Cudweed
Pseudognaphalium macounii Macoun's Cudweed
Toxicodendron radicans Poison Ivy
Tradescantia occidentalis Western Spiderwort
Vitis arizonica Canyon Grape

August 10, 2010 update

Achillea alpicola Alpine Yarrow
Apocynum cannabinum Indian Hemp
Asclepias engelmanniana Engelmann's Milkweed
Asclepias tuberosa Butterfly Weed
Astragalus gracilis Slender Milkvetch
Astragalus naturitensis Naturita Milkvetch
Cirsium parryi Parry's Thistle
Cryptantha pterocarya Wingnut Cryptantha
Equisetum hyemale Common Scouring Rush
Erigeron compositus Cut-leafed Daisy
Erigeron compositus var discoideus Gold Buttons
Erigeron formosissimus Beautiful Fleabane
Erigeron lonchophyllus Shortray Fleabane
Erigeron pulcherrimus Basin Fleabane
Hippuris vulgaris Mare's Tail
Packera pseudoaurea Falsegold Groundsel
Pyrrocoma clementis Tranquil Goldenweed

June 21, 2010 update

Amelanchier utahensis Utah Serviceberry
Arabis fendleri Fendler's Rockcress
Asclepias nummularia Tufted Milkweed
Astragalus bisulcatus Two-Grooved Milkvetch
Astragalus laxmannii Laxmann's Milkvetch
Astragalus lentiginosus Freckled Milkvetch
Astragalus mollissimus Woolly Milkvetch
Astragalus newberryi Newberry's Milkvetch
Astragalus nuttallianus Small-flowered Milkvetch
Caulanthus spp Wild Cabbage
Cleome lutea Yellow Beeplant
Corydalis curvisiliqua Curvepod Fumewort
Cryptantha crassisepala Thicksepal Cryptantha
Cymopterus bulbosus Wafer-Parsnip
Descurainia richardsonii Mountain Tansymustard
Eriogonum bicolor Pretty Buckwheat
Euphorbia cyparissias Cypress Spurge
Fraxinus anomola Single Leaf Ash
Giliastrum acerosum Spiny Blue Bowls
Hedysarum boreale Utah Sweetvetch
Ipomopsis pumila Dwarf Ipomopsis
Lupinus pusillus Rusty Lupine
Oreocarya flava Yellow Cryptantha
Penstemon osterhoutii Osterhout's Beardtongue
Penstemon utahensis Utah Penstemon
Phacelia integrifolia Gypsum Scorpionweed
Phlox longifolia Longleaf Phlox
Physaria vitulifera Fiddleleaf Twinpod
Scorzonera laciniata False Salsify
Streptanthella longirostris Little Twistflower
Townsendia exscapa Stemless Townsend Daisy

The website was launched on November 4, 2009