Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

Home to the plants of the Sonoran, Chihuahuan and Mojave Deserts

Cirsium ochrocentrum, Yellowspine Thistle

November 15, 2020; see updated Asteraceae below;

  • updated Packera neomexicana, New Mexico Groundsel (09/10/2020)
  • updated Packera quercetorum, Oak Creek Ragwort (09/10/2020)
  • updated Palafoxia arida var. arida, Desert Palafox (09/11/2020)
  • updated Palafoxia arida var. gigantea, Giant Spanish Needles (09/11/2020)
  • added Palafoxia arida, Desert Palafox (09/12/2020)
  • updated Pectis filipes, Five-bract Cinchweed (09/17/2020)
  • updated Pectis papposa, Manybristle Cinchweed (09/17/2020)
  • updated Pentzia incana, African Sheepbush (09/20/2020)
  • updated Perityle emoryi, Emory's Rockdaisy (09/22/2020)
  • updated Peucephyllum schottii, Schott's Pygmycedar (09/25/2020)
  • updated Pluchea sericea, Arrowweed (09/28/2020)
  • updated Porophyllum gracile, Slender Poreleaf (09/29/2020)
  • updated Porophyllum ruderale ssp. macrocephalum, Yerba Porosa (10/01/2020)
  • updated Psathyrotes ramosissima, Velvet Turtleback (10/01/2020)
  • updated Psilostrophe cooperi, Whitestem Paperflower (10/02/2020)
  • updated Rafinesquia californica, California Chicory (10/05/2020)
  • updated Rafinesquia neomexicana, New Mexico Plumeseed (10/06/2020)
  • updated Ratibida columnifera, Upright Prairie Coneflower (10/10/2020)
  • updated Rudbeckia laciniata, Cutleaf Coneflower (10/19/2020)
  • updated Sanvitalia abertii, Abert's Creeping Zinnia (10/22/2020)
  • updated Scabrethia scabra, Badlands Mule-Ears (10/24/2020)
  • added Senecio flaccidus, Threadleaf Groundsel (10/29/2020)
  • updated Senecio flaccidus var. flaccidus, Threadleaf Ragwort (10/26/2020)
  • updated Senecio flaccidus var. monoensis, Smooth Threadleaf Ragwort (10/29/2020)
  • updated Senecio lemmonii, Lemmon's Ragwort (10/31/2020)
  • updated Senecio vulgaris, Common Groundsel (10/31/2020)
  • updated Silybum marianum, Blessed Milkthistle (11/02/2020)
  • updated Solidago missouriensis, Missouri Goldenrod (11/04/2020)
  • updated Sonchus asper, Spiny Sowthistle (11/05/2020)
  • updated Sonchus oleraceus, Common Sowthistle (11/06/2020)
  • updated Stephanomeria exigua, Small Wirelettuce (11/09/2020)
  • updated Stephanomeria pauciflora, Brownplume Wirelettuce (11/10/2020)
  • updated Stephanomeria tenuifolia, Narrowleaf Wirelettuce (11/11/2020)
  • updated Symphyotrichum ericoides var. ericoides, White Heath Aster (11/12/2020)
  • updatedTagetes lemmonii, Lemmon’s Marigold (11/13/2020)
  • update Taraxacum officinale, Common Dandelion
  • update Thelesperma megapotamicum, Hopi Tea Greenthread
  • update Thymophylla acerosa, Pricklyleaf Dogweed
  • update Thymophylla pentachaeta, Fiveneedle Pricklyleaf
  • update Tragopogon dubius, Yellow Salsify
  • update Trichoptilium incisum, Yellowdome
  • update Trixis californica, American Threefold
  • update Verbesina encelioides, Golden Crownbeard
  • update Verbesina rothrockii, Rothrock's Crownbeard
  • update Xanthisma gracilie, Slender Goldenweed
  • update Xanthisma spinulosum, Lacy Tansyaster
  • update Xanthium strumarium, Rough Cocklebur
  • update Xanthocephalum gymnospermoides, San Pedro Matchweed
  • updade Xylorhiza tortifolia, Mojave Woodyaster
  • updade Zinnia acerosa, Desert Zinnia
  • updade Zinnia grandiflora, Rocky Mountain Zinnia
  • updade Zinnia peruviana, Peruvian Zinnia
  • updated Asteraceae as of: September 09, 2020

  • updated Hedypnois cretica, Cretanweed (08/05/2020)
  • updated Helianthus annuus, Common Sunflower (08/07/2020)
  • updated Helianthus niveus ssp. tephrodes, Showy Sunflower (08/07/2020)
  • updated Helianthus petiolaris, Prairie Sunflower (08/08/2020)
  • updated Heliomeris longifolia, Longleaf False Goldeneye (08/11/2020)
  • updated Heterotheca subaxillaris, Camphorweed (08/12/2020)
  • updated Hymenopappus filifolius, Fineleaf Hymenopappus (08/12/2020)
  • updated Hymenothrix loomisii, Loomis' Thimblehead (08/15/2020)
  • updated Hymenothrix wislizeni, Trans-Pecos Thimblehead (08/16/2020)
  • updated Hymenothrix wrightii, Wright’s Thimblehead (08/20/2020)
  • updated Hymenoxys rusbyi, Rusby's Rubberweed (08/21/2020)
  • updated Isocoma acradenia, Alkali Goldenbush (08/24/2020)
  • updated Isocoma pluriflora, Southern Goldenbush (08/25/2020)
  • updated Isocoma rusbyi, Rusby's Goldenbush (08/25/2020)
  • updated Isocoma tenuisecta, Burroweed (08/26/2020)
  • updated Lactuca serriola, Prickly Lettuce (08/27/2020)
  • updated Laennecia coulteri, Coulter's Horseweed (08/26/2020)
  • updated Lasthenia californica, California Goldfields (08/29/2020)
  • updated Layia glandulosa, Whitedaisy Tidytips (08/30/2020)
  • updated Logfia arizonica, Arizona Cottonrose (08/31/2020)
  • updated Machaeranthera tagetina, Mesa Tansyaster (09/01/2020)
  • updated Machaeranthera tanacetifolia, Tansyleaf Tansyaster (09/01/2020)
  • updated Malacothrix glabrata, Smooth Desertdandelion (09/02/2020)
  • updated Melampodium leucanthum, Plains Blackfoot Daisy (09/03/2020)
  • updated Melampodium strigosum, Shaggy Blackfoot (09/05/2020)
  • updated Microseris (=Uropappus) lindleyi, Lindley’s Silverpuffs (09/06/2020)
  • updated Monoptilon bellidiforme, Daisy Desertstar (09/09/2020)
  • updated Monoptilon bellioides, Mojave Desertstar (09/09/2020)
  • updated Oncosiphon piluliferum, Stinknet (09/09/2020)
  • August 04, 2020

    updated Asteraceae

  • updated Dicoria canescens, Desert Twinbugs (06/30/2020)
  • updated Dieteria canescens, Hoary Tansyasters (07/02/2020)
  • updated Dyssodia papposa, Fetid Marigold (07/03/2020)
  • updated Eclipta prostrata, False Daisy (07/05/2020)
  • updated Encelia farinosa, Brittlebush (07/08/2020)
  • updated Encelia frutescens, Button Brittlebush (07/10/2020)
  • updated Encelia virginensis, Virgin River Brittlebush (07/13/2020)
  • updated Ericameria laricifolia, Turpentine Bush (07/15/2020)
  • updated Ericameria linearifolia, Narrowleaf Goldenbush (07/15/2020)
  • updated Ericameria nauseosa, Rubber Rabbitbrush (07/15/2020)
  • updated Erigeron divergens, Spreading Fleabane (07/16/2020)
  • updated Eriophyllum lanosum, White Woolly Daisy (07/17/2020)
  • updated Eriophyllum pringlei, Pringle's Wooly Sunflower (07/17/2020)
  • updated Eriophyllum wallacei, Wallace Eriophyllum (07/17/2020)
  • updated Gaillardia pinnatifida, Red Dome Blanketflower (07/26/2020)
  • updated Gaillardia pulchella, Firewheel, Indian Blanket (07/27/2020)
  • updated Geraea canescens, Hairy Desertsunflower (07/28/2020)
  • updated Grindelia squarrosa, Curlycup Gumweedr (07/30/2020)
  • updated Gutierrezia microcephala, Threadleaf Snakeweedr (08/01/2020)
  • updated Gutierrezia sarothrae, Broom Snakeweed (08/03/2020)
  • updated Gutierrezia serotina, Late Snakeweed (08/04/2020)

  • June 28, 2020

    updated Asteraceae

  • updated Carduus pycnocephalus, Italian Plumeless-Thistle (06/03/2020)
  • updated Carphochaete bigelovii, Bigelow's Bristlehead (06/05/2020)
  • updated Centaurea melitensis, Maltese Star-thistle (06/05/2020)
  • updated Centaurea solstitialis, Yellow Star-thistle (06/09/2020)
  • updated Chaenactis carphoclinia var. carphoclinia, Pebble Pincushion (06/12/2020)
  • updated Chaenactis stevioides, Esteve’s Pincushion (06/12/2020)
  • updated Chaenactis xantiana, Fleshcolor Pincushion (06/12/2020)
  • updated Chaetopappa_ericoides, Rose Heath (06/12/2020)
  • updated Chrysactinia_mexicana, Damianita (06/13/2020)
  • updated Cirsium arizonicum, Arizona Thistle (06/16/2020)
  • updated Cirsium grahamii, Graham's Thistle (06/17/2020)
  • updated Cirsium mohavense, Mojave Thistle (06/18/2020)
  • updated Cirsium neomexicanum, New Mexico Thistle (06/18/2020)
  • updated Cirsium ochrocentrum, Yellowspine Thistle (06/19/2020)
  • updated Conoclinium greggii, Palmleaf Thoroughwort (06/22/2020)
  • updated Conyza canadensis, Canadian Horseweed (06/25/2020)
  • updated Coreopsis tinctoria, Golden Tickseed (06/28/2020)
  • updated Cosmos parviflorus, Southwestern Cosmos (06/28/2020)
  • June 01, 2020

    updated Asteraceae

  • updated Anaphalis margaritacea, Western Pearly Everlasting (05/02/2020)
  • updated Atrichoseris platyphylla, Parachute Plant (05/03/2020)
  • updated Baccharis pteronioides, Yerba de Pasmo (05/05/2020)
  • updated Baccharis salicifolia, Seepwillow (05/06/2020)
  • updated Baccharis sarothroides, Desertbroom (05/08/2020)
  • updated Bahiopsis parishii, Parish’s Goldeneye (05/19/2020)
  • updated Baileya multiradiata, Desert Marigold (05/21/2020)
  • updated Baileya pleniradiata, Woolly Desert Marigold (05/22/2020)
  • updated Bebbia juncea, Sweetbush Bebbia (05/26/2020)
  • updated Berlandiera lyrata, Lyreleaf Greeneyes (05/26/2020)
  • updated Bidens aurea, Apache Beggarticks (05/27/2020)
  • updated Bidens bigelovii, Bigelow's Beggarticks (05/27/2020)
  • updated Bidens laevis, Smooth Beggartick (05/27/2020)
  • updated Bidens leptocephala, Fewflower Beggarticks (05/27/2020)
  • updated Brickellia californica, California Brickellbush (05/28/2020)
  • updated Brickellia coulteri, Coulter's Brickellbush (05/29/2020)
  • updated Brickellia floribunda, Chihuahuan Brickellbush (05/30/2020)
  • updated Brickellia venosa, Veiny Brickellbush (06/01/2020)

  • April 30, 2020

    update Asteraceae
  • added Laennecia coulteri, Coulter's Horseweed (04/24/2020)
  • updated Ambrosia ambrosioides, Ambrosia Leaf Bur Ragweed (04/22/2020)
  • updated Ambrosia deltoidea, Triangle Leaf Bursage (04/26/2020)
  • updated Ambrosia dumosa, White Bursage (04/27/2020)
  • updated Ambrosia eriocentra, Hollyleaf Bursage (04/28/2020)
  • updated Ambrosia monogyra, Singlewhorl Burrobrush (04/29/2020)
  • updated Ambrosia salsola, Cheesebush, Burrobush (04/30/2020)
  • April 21, 2020

    update Asteraceae

  • updated Achillea millefolium, Common Yarrow (04/07/2020)
  • updated Acourtia nana, Dwarf Desertpeony (04/11/2020)
  • updated Acourtia thurberi, Thurber's Desertpeony (04/12/2020)
  • updated Acourtia wrightii, Brownfoot (04/13/2020)
  • updated Adenophyllum porophylloides, San Felipe Dogwood (04/19/2020)
  • updated Ageratina herbacea, Fragrant Snakeroot (04/19/2020)
  • updated Agoseris glauca, Pale Agoseris (04/20/2020)
  • updated Agoseris heterophylla, Annual Agoseris (04/21/2020)
  • updated Almutaster pauciflorus, Alkali Marsh Aster (04/21/2020)
  • add Brassicaceae
  • added Caulanthus lasiophyllus, California Mustard (03/15/2020)
  • added Eruca vesicaria ssp. sativa, Salad Rocket (03/17/2020)
  • added Lepidium alyssoides, Mesa Pepperwort (03/21/2020)
  • added Matthiola parviflora, Three-horned Stock (03/22/2020)
  • add Boraginaceae
  • added Johnstonella angustifolia (=Cryptantha), Panamint Cryptantha (03/09/2020)
  • added Cryptantha barbigera, Bearded Cryptantha (03/09/2020)
  • added Cryptantha torreyana, Torrey's Cryptantha (03/10/2020)
  • updated Cryptantha ganderi, Gander's Cryptantha (03/11/2020)
  • updated Cryptantha gracilis, Narrowstem Cryptantha (03/11/2020)
  • updated Cryptantha micrantha, Redroot Cryptantha (03/11/2020)
  • updated Cryptantha pterocarya, Wingnut Cryptantha (03/12/2020)
  • updated Acamptopappus sphaerocephalus, Rayless Goldenhead (02/29/2020)
  • added Stephanomeria pauciflora, Brownplume Wirelettuce (02/24/2020)
  • added Stephanomeria tenuifolia, Narrowleaf Wirelettuce (02/26/2020)
  • updated Stephanomeria exigua, Small Wirelettuce (02/27/2020
  • added Packera neomexicana, New Mexico Groundsel (02/19/2020)
  • updated Packera quercetorum, Oak Creek Ragwortl (02/19/2020)
  • added Palafoxia arida var. arida, Desert Palafox (02/21/2020)
  • updated Palafoxia arida var. gigantea, Giant Spanish Needles (02/23/2020)
  • recently completed pages - 01/26/2020 through 02/19/2020
  • added Conoclinium greggii, Palmleaf Thoroughwort (02/15/2020)
  • added Cirsium mohavense, Mojave Thistle (02/07/2020)
  • updated Cirsium arizonicum, Arizona Thistle (02/12/2020)
  • updated Cirsium grahamii, Graham's Thistle (02/13/2020)
  • updated Cirsium neomexicanum, New Mexico Thistle (02/13/2020)
  • updated Cirsium ochrocentrum, Yellowspine Thistle (02/13/2020)
  • updated Asteraceae, Sunflower Family (01/26/2020)
  • added Almutaster pauciflorus, Alkali Marsh Aster (01/29/2020)
  • added Bidens aurea, Apache Beggarticks (01/31/2020)
  • added Bidens laevis, Smooth Beggartick (02/01/2020)
  • updatedBidens bigelovii, Bigelow's Beggarticks (02/03/2020)
  • updated Bidens leptocephala, Fewflower Beggarticks (02/02/2020)
  • added Carduus pycnocephalus, Plumeless Thistle (02/03/2020)
  • added Chaenactis xantiana, Fleshcolor Pincushion (02/04/2020)
  • updated Chaenactis carphoclinia, Pebble Pincushion (02/05/2020)
  • updated Chaenactis stevioides, Esteve’s Pincushion (02/05/2020)
  • January 24, 2020

  • updated Simaroubaceae, Quassia Family (01/22/2020)
  • added Ailanthus altissima, Tree of Heaven (01/24/2020)

  • updated family Anacardiaceae, Sumac Family (01/12/2020)
  • added Pachycormus discolor, Baja Elephant Tree (01/16/2020)
  • added Rhus glabra, Smooth Sumac (01/18/2020)
  • updated Rhus kearneyi ssp. kearneyi, Kearney's Sumac (01/20/2020)
  • updated Rhus microphylla, Littleleaf Sumac (01/20/2020)
  • updated Rhus ovata, Sugar Sumac (01/21/2020)
  • updated Rhus trilobata var. trilobata, Skunkbush Sumac (01/21/2020)
  • updated Toxicodendron rydbergii, Western Poison Ivy (01/21/2020)

  • updated Amaranthaceae, Pigweed Family (01/12/2020)
  • added Enchylaena tomentosa, Ruby-Saltbush (12/24/2019)
  • added Amaranthus blitoides, Mat Amaranth (12/27/2019)
  • more Agavaceae
  • added Yucca faxoniana, Spanish Bayonet (01/03/2020)
  • added Yucca rigida, Blue Yucca (01/03/2020)
  • added Yucca rostrata, Beaked Yucca (01/05/2020)

  • added new family Apocynaceae, Dogbane Family (01/12/2020)
  • added Amsonia tomentosa, Woolly Bluestar (01/12/2020)

  • December 16, 2019

  • Agave parryi, Parry's Agave (12/16/2019)
  • updated existing Agave species (12/16/2019)
  • Agave chrysantha, Goldenflower Century Plant (12/16/2019)
  • Agave lechuguilla, Lechuguilla (12/16/2019)
  • Agave schottii, Schott's Century Plant (12/16/2019)
  • Agave toumeyana v bella, Toumey's Agave (12/16/2019)
  • Agave toumeyana, Toumey's Agave (12/16/2019)

  • November 21, 2019

  • updated Fabaceae/Leguminosae; Legume, Pea, or Bean family profile; (10/11/2019)
  • added; Caesalpinia gilliesii, Bird-of-paradise Shrub (10/11/2019)
  • added; Caesalpinia pulcherrima, Red Bird-of-Paradise (10/17/2019)
  • added; Medicago polymorpha, Burclover (10/29/2019)
  • updated; Medicago sativa, Alfalfa (10/29/2019)
  • added; Mimosa roemeriana, Roemer's Mimosa (11/06/2019)
  • updated: Mimosa aculeaticarpa biuncifera, Catclaw Mimosa (11/11/2019)
  • updated:Mimosa dysocarpa, Velvetpod Mimosa (11/13/2019)
  • added; Phaseolus angustissimus, Slimleaf Bean (11/15/2019)
  • updated; Phaseolus filiformis, Slimjim Bean (11/15/2019)
  • added; Trifolium gracilentum, Pinpoint Clover (11/21/2019)
  • updated; Trifolium willdenovii, Tomcat Clover (11/21/2019)
  • October 09, 2019 - Next

  • Updated Caprifoliaceae, Honeysuckle family profile; (10/09/2019)
  • added; Lonicera albiflora, Western White Honeysuckle (10/09/2019)
  • 10/02/2019 - Updated Liliaceae, Family Profile;

  • Allium campanulatum, Dusky Onion (09/30/2019)
  • Nothoscordum bivalve, Crow Poison (10/04/2019)
  • September 12, 2019 -

    Updated:

  • Salix exigua, Narrowleaf Willow (09/10/2019)
  • Salix gooddingii, Goodding's Willow (09/11/2019)
  • Populus fremontii, Fremont Cottonwood (09/12/2019)
  • September 06, 2019 -

    Updated Salicaceae, Willow Family (09/07/2019)

  • Added: Salix amygdaloides, Peachleaf Willow (09/12/2019)
  • September 06, 2019 -

    added:

  • Chenopodiastrum murale, Nettleleaf Goosefoot (09/03/2019)
  • Chenopodium album, Lambsquarters (09/06/2019)
  • August 30, 2019

    Updated family profile Chenopodiaceae, Goosefoot Family (=Amaranthaceae) and added new species:

  • Atriplex lentiformis, Quailbush (08/31/2019)
  • Atriplex semibaccata, Australian Saltbush (08/31/2019)
  • Atriplex torreyi var. griffithsii, Griffiths Saltbush (08/31/2019)
  • updated: 09/01/2019

  • Atriplex canescens, Four-wing Salt Bush (09/01/2019)
  • Atriplex elegans, Wheelscale Saltbush (09/01/2019)
  • Atriplex hymenelytra, Desertholly (09/01/2019)

  • August 19, 2019 - added family profile - Fagaceae

  • add new species:
  • Quercus emoryi, Emory Oak (08/19/2019)
  • Quercus gambelii, Gambel Oak (08/21/2019)
  • Quercus turbinella, Sonoran Scrub Oak (08/23/2019)

  • add new family profile - August 12, 2019:
    Hydrangeaceae Family

  • add new species: Fendlera rupicola, Cliff Fendlerbush (08/12/2019)

  • add new - Apiaceae (Umbelliferae) - August 07, 2019

  • Anthriscus caucalis, Burr Chervil (08/07/2019)

  • August 07, 2019 Euphorbiaceae - add new species

  • Acalypha neomexican, New Mexico Copperleaf (06/16/2019)
  • Croton pottsii, Leatherweed (06/23/2019)
  • Croton wigginsii, Wiggins Croton (06/24/2019)
  • Euphorbia eriantha, Beetle Spurge (06/18/2019)
  • Euphorbia heterophylla, Mexican Fireplant (06/19/2019)
  • Euphorbia incisa, Mojave spurge (06/21/2019)
  • Euphorbia radians, Sun Spurge (06/22/2019)
  • Jatropha cuneata, Limberbush (06/27/2019)
  • Jatropha macrorhiza, Ragged Nettlespurge (06/30/2019)
  • Ricinus communis, Castorbean (07/15/2019)
  • Tragia ramosa, Branched Noseburn (08/07/2019)

  • June 12, 2019 - add new species

  • added Ditaxis lanceolata, Narrowleaf Silverbush (06/10/2019)
  • added Ditaxis neomexicana, New Mexico Silverbush (06/12/2019)

  • May 31, 2019 - add and update new species

  • added Alternanthera pungens, Khakiweed (05/31/2019)
  • updated Alternanthera caracasana, Khaki Weed (05/31/2019)
  •