Click to read about the app,
"Colorado Rocky Mountain Wildflowers".
Install the app on your phone or tablet and have it in the field with you to identify plants
from the foothills to the alpine of
Colorado, Utah, Arizona, New Mexico,
and all of the Rockies.

Click to see three plant species
that Betty and I were fortunate enough to discover:

Gutierrezia elegans

Packera mancosana

Ipomopsis ramosa

Click to see Heterotheca schneideri
which Guy Nesom named for us.

Click to read my proposal
for naming a new Castilleja species.

Click to see Senecio inexpectatus
which was named
based on our discovery of this species in Colorado.

Website Additions

Additions to biographies of
Meriwether Lewis
and Thomas Nuttall

New website: Flora of Mexico

Information added in 2023

Review of Ackerfield's
"Flora of Colorado"
, 2nd edition

Family name change: Adoxaceae is now Viburnaceae
The species Nama is now in Namaceae

Updated Boechera information

Information added in 2022

Illustrated glossary of Sunflower terminology

Glossary entry on "albino"

Biographical information on Sara and John Lemmon

Update on Heterotheca entry

Plant List for the Hamilton Mesa Area of
Canyons of the Ancients National Monument

Updated Fern Information


2023 Photographs

Epipactis gigantea
Thelypodiopsis aurea
Phacelia crenulata
Lappula redowskii
Ipomopsis polycladon
Allium textile
Yucca angustissima
Packera multilobata
Penstemon angustifolius
Astragalus mollissimus
Chaetopappa ericoides
Lepidium montanum
Penstemon eatonii
Astragalus wingatanus
Astragalus naturitensis
Ipomopsis pumila
Astragalus ceramicus
Tetraneuris ivesiana
Erigeron tracyi
Hedysarum boreale
Sphaeralcea leptophylla
Linanthus pungens
Arctostaphylos uva-ursi
Lathyrus pauciflorus
Astragalus bisulcatus
Antennaria parvifolia
Barbarea vulgaris (new species for this website)
Aconitum columbianum
Matricaria discoidea (new species for this website)
Epilobium hornemannii
Spiranthes romanzoffiana
Antennaria pulcherrima (new species for this website)
Oxypolis fendleri
Arnica mollis
Viola adunca variety bellidifolia
Ligusticum porteri
Pinus contorta
Cirsium tukuhnikivatzicum (newly named species)
Botrychium echo
Pteridium aquilinum

Caltha chionophila
Sorbus scopulina


2022 Photographs

Shepherdia argentea
Physaria acutifolia
Gilia ophthalmoides
Lithospermum incisum
Noccaea fendleri
Grayia spinosa
Celtis reticulata
Aphyllon arizonicum
Boechera stricta
Taraxacum officinale
Acer glabrum
Thermopsis montana

Clematis occidentalis
Noccaea fendleri
Astragalus scopulorum
Senecio integerrimus
Hydrophyllum fendleri
Trifolium longipes
Purshia stansburiana
Frasera albomarginata

Oenothera flava
Astragalus missouriensis
Ranunculus alismifolius
Pedicularis groenlandica
Rhodiola rhodantha
Picea engelmannii

Conioselinum scopulorum
Erigeron subtrinervis
Oxytropis parryi
Senecio eremophilus
Pinus flexilis
Agoseris glauca
Potentilla pensylvanica
Yucca baccata
Heterotheca villosa
Pyrola asarifolia
Heliomeris multiflora
Polemonium foliosissimum
Atriplex canescens
Pteridium aquilinum

Rudbeckia laciniata
South Six-shooter Peak
Strolling along Hillside Drive above the Dolores River.

Photographs taken in 2021
of species new to this website.

Erythranthe rubella
Alhagi maurourum
Sclerocactus whipplei
Tragopogon porrifolius
Viola macloskeyi
Erigeron vetensis
Penstemon venustus
Arnica chamissonis
Helianthus pauciflorus
Sphaeralcea fendleri
Grindelia nuda
Symphyotrichum lanceolatum
Brickellia californica
Amaranthus powellii
Enceliopsis nudicaulis
Mentzelia multiflora

Photographs taken in 2021
of species already on this website.

Photographs added in April, 2021

Astragalus eastwoodiae
Asclepias cryptoceras
Juniperus monosperma
Lupinus pusillus
Eremocrinum albomarginatum
Phacelia ivesiana
Astragalus praelongus
Astragalus mollissimus
Opuntia phaeacantha
Androstephium breviflorum
Celtis reticulata
Eriogonum cernuum
Pedicularis centranthera
Cylindropuntia whipplei

Photographs added in May, 2021
Chrysothamnus depressus
Crepis occidentalis
Ranunculus glaberrimus
Trifolium hybridum
Toxicoscordion venenosum
Updated "Bibliography of Wildflower Books".
Lomatium grayi

Photographs added in June, 2021

Cleomella lutea
Paxistima myrsinites
Corydalis aurea
Drymocallis arguta
Trifolium nanum
Picea engelmannii
Cerastium arvense

Cerastium beeringianum
Lewisia pygmaea
Erigeron grandiflorus
Frasera speciosa

Photographs added in July, 2021
Aquilegia coerulea

Veratrum californicum
Pedicularis procera
Cercocarpus ledifolius
Herrickia glauca

Photographs added in July, 2021
Artemisia frigida
Lomatium minimum
Oxytropis parryi
Artemisia franserioides
Micranthes odontoloma
Castilleja versicolor
Swertia perennis

Photographs added in August, 2021
Epilobium ciliatum
Solidago missouriensis
Astragalus pattersonii
Eriogonum racemosum
Amauriopsis dissecta
Phemeranthus confertiflorus
Pyrrocoma crocea
Geranium caespitosum
Hymenoxys richardsonii

Photographs added in September, 2021
Symphyotrichum ascendens
East Fork Trail and Dog Pepper

Plantago patagonica

Photographs & information added in October, 2021
Amaranthus powellii
Chamaenerion angustifolium

Updated biographies of Sara and John Lemmon

Updated biographies of Mary and Townshend Brandegee

Erigeron flagellaris

Photographs & information added in November, 2021
Artemisia filifolia
Brickellia microphylla
Celtis reticulata
Heterotheca villosa
Chrysothamnus greenei
Stanleya pinnata
Phacelia crenulata
Herrickia glauca
Yucca angustissima

Updated information on Mertensia

Name change for Rubus parviflorus

Click for Plant List for Canyons of Ancients


List of Scientific Plant Name Changes

Click here for a list of species whose names have been changed recently.


Native Plants Discussion Groups

Do you have questions about native plants? Would you like to share information and enthusiasm about native plants? 

Join the Colorado and/or New Mexico Native Plants online botanical discussion groups for amateurs and professionals. Participate as much or as little as you want to. Send in photographs of native plants for identification and discuss key issues about conserving native plants, techniques for growing native plants in your garden, plant photography, etc.

Be aware that the first two Facebook pages linked immediately below often have irrelevant, wandering, misinformed comments. The third link below is to the New Mexico listserv group which is very good with well thought out questions and very courteous and helpful responses. 

1)  Click to join the ColoradoNativePlant Facebook discussion group.

2)  Click to join the Colorado Native Plant Society Facebook Plant discussion group.

3Click to join the New Mexico native plant discussion group.


Featured Software for Listing Species You Observe

Do you like to keep track of the plants (and birds and mammals and insects) that you see? Buy "Birder's Diary", the ultimate in listing software which will allow you to maintain detailed records of your sightings.

You can capture unlimited user-defined data about each sighting and then report on this data in a myriad of ways. You can print checklists; automatically maintain life list counts for any region on Earth; recall and report on trends; and much, much more!

Birder's Diary is more than a tool just for birders. Checklists exist for mammals, butterflies, trees, etc. More categories are being added all the time. Since 1995, Birder's Diary has been providing the World's Birding community with the latest technology, products, and services and now that technology is available to all kinds of naturalists.

Click for the Birder's Diary free 30 day trial.

Use the discount code, “SCHNEIDER”, and you will get 10% off all purchases at the Birder's Diary Online Store.


Below you will find links to comments & updates on three Colorado floras.

Floras are complex and very time consuming to write. They demand not only expertise in the plants of an area but also expertise in technical writing, logic, and scientific precision. Three floras of Colorado strive for these goals and achieve them to various degrees, but all three have room for improvement, especially in the construction of clear and accurate keys. Weber's flora has many helpful comments found nowhere else, but the keys are needlessly complex. Ackerfield's flora improves on Weber's but contains problems with conflicting nomenclature, poor photographs, and keys. Heil and O'Kane's flora is the best for the Four Corners region (and beyond) and has the great advantage of being put together by many experts, not just one author (as in Weber and Ackerfield's floras).

A Utah Flora by Welsh is often the flora I turn to for the best keys and most interesting and accurate comments.

Flora Neomexicana III by Allred is a very well researched flora that has good keys and very helpful line drawings.

Comments & Updates on Weber and Wittmann's Colorado Flora

Click here for comments on Weber and Wittmann's 2012, 4th edition of Colorado Flora.

Click to order and read more about Colorado Flora: Western Slope. Eastern Slope.

Comments & Updates on Heil and O'Kane's
Flora of the Four Corners Region

Click here for comments, corrections, and additions to the 2013,
Flora of the Four Corners Region

Click to order and read more about this flora.

Click for comments about Ackerfield's
Flora of Colorado