Amaranth Family, Shadscale, Atriplex confertifolia

Amaryllis Family, Nodding Onion, Allium cernuum

Amaryllis Family, Geyer's Onion, Allium geyeri

Aster Family, Common or Lesser Burdock, Arctium minus (leaf shown; flowers resemble purple thistles)

Aster Family, Chicory, Cichorium intybus (compare with blue lettuce, below)

Aster Family, New Mexico Thistle, Cirsium neomexicanum

Aster Family, Yellow-Spine Thistle, Cirsium ochrocentrum

Aster Family, Purple Aster, Dieteria

Aster Family, Fleabane or Showy Daisy, Erigeron (can also be white)

Aster Family, Dotted Blazing Star or Dotted Gayfeather, Liatris punctata

Aster Family, Purple Aster, Machaeranthera

Aster Family, Blue Lettuce, Mulgedium pulchellum (compare with chicory, above)

Aster Family, Russian Knapweed, Rhaponticum or Acroptilon repens

Aster Family, Wire-Lettuce, Stephanomeria

Aster Family, Rocky Mountain Townsend Daisy, Townsendia eximia

Bellflower Family, Harebells, Campanula rotundifolia

Borage Family, Stickseed, Hackelia (can be white)

Borage Family, Franciscan Bluebells, Mertensia franciscana

Borage Family, Lanceleaf Bluebells, Mertensia lanceolata

Borage Family, Gypsum Scorpion-Weed, Phacelia integrifolia

Broomrape Family, Dwarf Lousewort, Pedicularis centranthera

Buttercup Family,  Blue Columbine, Aquilegia coerulea

Buttercup Family,  Leather Flower, Clematis sp.

Buttercup Family, Sapello Canyon Larkspur, Delphinium sapellonis (mix of purple, brown, and green)

Buttercup Family, Organ Mountain Larkspur, Delphinium wootonii (can also be white)

Buttercup Family, Pasqueflower, Pulsatilla nuttalliana

Cactus Family, Cane Cholla, Cylindropuntia Imbricata

Cleomaceae, Rocky Mountain Beeplant, Cleomella serrulata

Dayflower Family, Bird-Bill Dayflower, Commelina dianthifolia

Dayflower Family, Western Spiderwort, Tradescantia occidentalis

Dogbane Family, Climbing Milkweed, Funastrum crispum

Evening Primrose Family, Fireweed, Chamerion angustifolium (can be more pink)

Fig-Marigold Family, Western Sea-Purslane, Sesuvium verrucosum

Flax Family, Wild Blue Flax, Linum lewisii

Four O'Clock Family, Windmills or Trailing Four O'Clock, Allionia

Four O'Clock Family, Scarlet Spiderling, Boerhavia coccinea

Four O'Clock Family, White Four O'Clock, aka Mountain Four O'Clock, Mirabilis albida (can also be white)

Four O'Clock Family, Narrow-Leaf Four O'Clock, Mirabilis linearis (can also be pink)

Gentian Family, Arizona Centaury, Zeltnera

Geranium Family, Filaree, Heronbill, or Stork's Bill, Erodium circutarium

Geranium Family, Purple or Fremont Geranium, Geranium caespitosum

Geranium Family, Richardson's Geranium, Geranium richardsonii

Honeysuckle Family, Teasel, Dipsacus fullonum

Honeysuckle Family, Arizona Valerian, Valeriana arizonica

Iris Family, Rocky Mountain Iris, Iris missouriensis

Mint Family, Giant Hyssop, Agastache pallidiflora

Mint Family, Nettle-Leaf Giant Hyssop, Agastache urticifolia

Mint Family, Drummond's False Pennyroyal, Hedeoma drummondii

Mint Family, Henbit Deadnettle or Giraffeheads, Lamium amplexicaule

Mint Family, Bergamot or Beebalm, Monarda fistulosa

Mint Family, Pony Beebalm, Monarda pectinata (more often white to pale pink)

Mint Family, Blue Sage, Salvia azurea

Mint Family, Lanceleaf Sage, Salvia reflexa

Mint Family, Sawtooth Sage, Salvia subincisa

Mint Family, Chaste Tree or Lilac Chastetree, Vitex agnus-castus

Morning Glory Family, Field Bindweed, Convolvulus arvensis (can also be all-white or more pink)

Morning Glory Family, Shaggy Dwarf Morning Glory, Evolvulus nuttallianus

Morning Glory Family, Ivy-Leaved or Ivy-Leaf Morning Glory, Ipomoea hederacea

Morning Glory Family, Bush Morning Glory, Ipomoea leptophylla

Morning Glory Family, Common Morning Glory, Ipomoea purpurea

Mustard Family, Rockcress, Boechera (can also be white)

Mustard Family, Blue Mustard, Chorispora tenella

Mustard Family, Slimleaf Plainsmustard, Hesperidanthus linearifolius

Mustard Family, Heartleaf Twistflower or Heart-Leaf Jewelflower, Streptanthus cordatus (not my image; click here for the photo credit and license)

Orchid Family, Calypso Orchid, Calypso bulbosa

Parsley Family, Bulbous Spring Parsley? Vesper cf.

bulbosus

Pea Family, False Indigo-Bush, Amorpha fruticosa

Pea Family, Milkvetch, Astragalus spp.

Pea Family, Feather Plume or Feather Dalea, Dalea formosa

Pea Family, Woolly Prairie Clover, Dalea lanata

Pea Family, Everlasting Pea or Perennial Peavine, Lathyrus latifolius

Pea Family, Lupine, Lupinus

Pea Family, Alfalfa, Medicago sativa

Pea Family, Slimflower Scurfpea, Psoralidium tenuiflorum

Pea Family, Broom Dalea, Psorothamnus scoparius

Pea Family, Red Clover, Trifolium pratense

Pea Family, American Vetch, Vicia americana

Phlox Family, Tiny Trumpet, Collomia linearis

Phlox Family, Bluebowls, Giliastrum rigidulum

Phlox Family, Trumpet Gilia, Ipomopsis longiflora

Phlox Family, Many-Flowered Gilia, Ipomopsis multiflora

Phlox Family, Santa Fe Phlox, Phlox nana

Phlox Family, Jacob's Ladder, Polemonium foliosissimum

Plantain Family, Sand or Bush Penstemon, Penstemon ambiguus (varies from white to lavender)

Plantain Family, Broad-beard or Narrowleaf Penstemon,  Penstemon angustifolius

Plantain Family, Inflated Penstemon, Penstemon inflatus

Plantain Family, James' Penstemon, Penstemon jamesii, or Arizona Penstemon, Penstemon ophianthus

Plantain Family, Desert Penstemon, Penstemon pseudospectabilis

Plantain Family, Rydberg's Penstemon,  Penstemon rydbergii

Plantain Family, Sidebells Beardtongue?  Penstemon secundiflorus

Plantain Family, Rocky Mountain Penstemon, Penstemon strictus

Plantain Family, Wandbloom Penstemon, Penstemon virgatus

Plantain Family, Dusky Penstemon, Penstemon whippleanus

Plantain Family, Water Speedwell, Veronica anagallis-aquatica

Plantain Family, Birdeye or Persian Speedwell, Veronica persica

Potato Family, Chinese Thorn-Apple, Datura quercifolia

Potato Family, Torrey Wolfberry, Lycium torreyi

Potato Family, Silverleaf Nightshade, Solanum elaeagnifolium (rarely, petals are white)

Plumbago Family, Trans-Pecos Sea-Lavender, Limonium limbatum

Verbena Family, Verbena, Glandularia bipinnatifida

Verbena Family, Blue Vervain, Verbena hastata

Verbena Family, Spike or New Mexico Vervain, Verbena mcdougalii

Verbena Family, Carpet Vervain, Verbena bracteata

Wood Sorrel Family, Violet Woodsorrel, Oxalis violaceae