- Allionia choisyi – Annual Windmills
- Allionia incarnata – Trailing Windmills
- Amaranthus fimbriatus – Fringed Amaranth
- Amaranthus palmeri – Carelessweed
- Amsinckia menziesii var. intermedia – Common Fiddleneck
- Anagallis arvensis – Scarlet Pimpernel
- Anagallis arvensis ssp. foemina – Poorman's Weatherglass
- Anoda abutiloides – Indian Anoda
- Anoda cristata – Crested Anoda
- Antheropeas lanosum – White Easterbonnets
- Arida arizonica – Arid Tansyaster
- Baileya multiradiata – Desert Marigold
- Bowlesia incana – Hoary Bowlesia
- Brassica tournefortii – Asian Mustard
- Calandrinia ciliata – Fringed Redmaids
- Calibrachoa parviflora – Seaside Petunia
- Calycoseris wrightii – White Tackstem
- Camissonia californica – California Suncup
- Capsella bursa-pastoris – Shepherd's Purse
- Castilleja exserta – Exserted Indian Paintbrush
- Centaurea melitensis – Maltese Star-thistle
- Centaurium arizonicum – Arizona Centaury
- Chaenactis stevioides – Esteve's Pincushion
- Chamaesyce florida – Chiricahua Mountain Sandmat
- Chamaesyce hyssopifolia – Hyssopleaf Sandmat
- Chamaesyce polycarpa – Smallseed Sandmat
- Chamaesyce setiloba – Yuma Sandmat
- Chorispora tenella – Crossflower
- Clarkia epilobioides – Canyon Clarkia
- Claytonia perfoliata – Miner's Lettuce
- Conyza canadensis – Canadian Horseweed
- Corydalis aurea – Scrambled Eggs
- Cosmos parviflorus – Southwestern Cosmos
- Crotalaria pumila – Low Rattlebox
- Cryptantha pterocarya – Wingnut Cryptantha
- Cryptantha spp. – Cryptantha
- Cuscuta spp. – Dodder
- Datura discolor – Desert Thorn-apple
- Datura wrightii – Sacred Thorn-apple
- Daucus pusillus – American Wild Carrot
- Dieteria canescens – Hoary Tansyaster
- Dimorphotheca sinuata – Glandular Cape Marigold
- Draba cuneifolia – Wedgeleaf Draba
- Echinopepon wrightii – Wild Balsam Apple
- Emmenanthe penduliflora – Whisperingbells
- Eriastrum diffusum – Miniature Woollystar
- Eriogonum polycladon – Sorrel Buckwheat
- Erodium cicutarium – Redstem Stork's Bill
- Erodium texanum – Texas Stork's Bill
- Eschscholzia californica ssp. mexicana – California Poppy
- Eucrypta micrantha – Dainty Desert Hideseed
- Gaillardia pulchella – Firewheel
- Galium aparine – Stickywilly
- Gaura hexandra – Harlequinbush
- Gaura mollis – Velvetweed
- Glandularia bipinnatifida – Dakota Mock Vervain
- Guillenia lasiophylla – California Mustard
- Helianthus annuus – Common Sunflower
- Helianthus petiolaris – Prairie Sunflower
- Heliomeris longifolia – Longleaf False Goldeneye
- Herissantia crispa – Bladdermallow
- Heterotheca subaxillaris – Camphorweed
- Hymenothrix wislizeni – Trans-Pecos Thimblehead
- Ipomoea barbatisepala – Canyon Morning-glory
- Ipomoea costellata – Crestrib Morning-glory
- Ipomoea cristulata – Trans-Pecos Morning-glory
- Ipomoea hederacea – Ivyleaf Morning-glory
- Ipomoea ternifolia – Tripleleaf Morning-glory
- Ipomopsis longiflora – Flaxflowered Ipomopsis
- Kallstroemia grandiflora – Arizona Poppy
- Lactuca serriola – Prickly Lettuce
- Lamium amplexicaule – Henbit Deadnettle
- Lappula occidentalis – Flatspine Stickseed
- Leptosiphon aureus – Golden Linanthus
- Lesquerella gordonii – Gordon's Bladderpod
- Linaria maroccana – Moroccan Toadflax
- Linum pratense – Meadow Flax
- Lotus humistratus – Foothill Deervetch
- Lotus strigosus var. tomentellus – Strigose Bird's-foot Trefoil
- Lupinus arizonicus – Arizona Lupine
- Lupinus bicolor – Miniature Lupine
- Lupinus concinnus – Bajada Lupine
- Lupinus sparsiflorus – Coulter's Lupine
- Lupinus succulentus – Hollowleaf Annual Lupine
- Machaeranthera tagetina – Mesa Tansyaster
- Machaeranthera tanacetifolia – Tanseyleaf Tansyaster
- Malacothrix fendleri – Fendler's Desertdandelion
- Malacothrix glabrata – Smooth Desertdandelion
- Malva parviflora – Cheeseweed Mallow
- Matthiola longipetala – Night Scented Stock
- Matthiola parviflora
- Mecardonia procumbens – Baby Jump-up
- Medicago lupulina – Black Medick
- Medicago sativa – Alfalfa
- Melilotus indicus – Annual Yellow Sweetclover
- Melilotus officinalis – Yellow Sweetclover
- Melinis repens – Rose Natal Grass
- Mentzelia asperula – Organ Mountain Blazingstar
- Mentzelia jonesii – Jones' Blazingstar
- Microseris lindleyi – Lindley's Silverpuffs
- Mimetanthe pilosa – False Monkeyflower
- Mimulus guttatus – Seep Monkeyflower
- Mimulus rubellus – Little Redstem Monkeyflower
- Modiola caroliniana – Carolina Bristlemallow
- Monoptilon bellioides – Mojave Desertstar
- Nama hispidum – Bristly Nama
- Nemacladus glanduliferus – Glandular Threadplant
- Nicotiana obtusifolia – Desert Tobacco
- Nuttallanthus texanus – Texas Toadflax
- Oenothera primiveris – Desert Evening Primrose
- Orobanche cooperi – Desert Broomrape
- Oxalis corniculata – Creeping Woodsorrel
- Papaver somniferum – Opium Poppy
- Parthenice mollis – Annual Monsterwort
- Passiflora foetida var. arizonica – Arizona Passionflower
- Phacelia affinis – Limestone Phacelia
- Phacelia arizonica – Arizona Phacelia
- Phacelia campanularia – Desertbells
- Phacelia crenulata – Cleftleaf Wildheliotrope
- Phacelia distans – Distant Phacelia
- Phaseolus acutifolius var. tenuifolius – Tepary Bean
- Pholistoma auritum – Blue Fiestaflower
- Physalis acutifolia – Sharpleaf Groundcherry
- Plagiobothrys arizonicus – Arizona Popcornflower
- Plantago ovata – Desert Indianwheat
- Plantago patagonica – Woolly Plantain
- Platystemon californicus – Creamcups
- Polanisia dodecandra – Redwhisker Clammyweed
- Polygala barbeyana – Blue Milkwort
- Polygonum pensylvanicum – Pennsylvania Smartweed
- Porophyllum ruderale – Yerba Porosa
- Portulaca oleracea – Little Hogweed
- Portulaca umbraticola – Wingpod Purslane
- Proboscidea louisianica – Ram's Horn
- Proboscidea parviflora – Doubleclaw
- Rafinesquia neomexicana – New Mexico Plumeseed
- Salsola tragus – Prickly Russian Thistle
- Salvia columbariae – Chia
- Salvia subincisa – Sawtooth Sage
- Sanvitalia abertii – Abert's Creeping Zinnia
- Schistophragma intermedia – Harlequin Spiralseed
- Sida abutifolia – Spreading Fanpetals
- Silene antirrhina – Sleepy Silene
- Sisymbrium irio – London Rocket
- Solanum americanum – American Black Nightshade
- Solanum rostratum – Buffalobur Nightshade
- Sonchus asper – Spiny Sowthistle
- Sonchus oleraceus – Common Sowthistle
- Stemodia durantifolia – Whitewoolly Twintip
- Streptanthus carinatus – Lyreleaf Jewelflower
- Thysanocarpus curvipes – Sand Fringepod
- Tidestromia lanuginosa – Woolly Tidestromia
- Trianthema portulacastrum – Desert Horsepurslane
- Tribulus terrestris – Puncturevine
- Triodanis holzingeri – Holzinger's Venus' Looking-glass
- Verbesina encelioides – Golden Crownbeard
- Wislizenia refracta – Spectacle Fruit
- Xanthium strumarium – Rough Cocklebur
Annuals
Annuals are plants with a one-season or one-year life cycle. One-season spring wildflowers will quickly sprout, flower, produce seeds, and then die before summer arrives.
Listed below are some of the annual plants found in southeastern Arizona.