Bataceae (Saltwort):

Batis maritima (Saltwort)

Berberidaceae (Barberry):

Berberis
    aquifolium var. repens (Creeping grape holly)
    fremontii (Fremont's barberry)
    nevinii (Nevin's barberry)
    pinnata ssp. pinnata (California barberry)

Betulaceae (Birch):

Alnus rhombifolia (White alder)

Bignoniaceae (Bignonia):

Chilopsis linearis ssp. arcuata (Desert willow)
Tecoma stans (Yellow trumpet flower)**
Tecomaria capensis (Cape honeysuckle)**

Blechnaceae (Deer Fern):

Woodwardia fimbriata (Giant chain fern)

Boraginaceae (Borage):

Amsinckia
    menziesii var. intermedia (Common fiddleneck)
    menziesii var. menziesii (Small-flowered fiddleneck)
    spectabilis var. spectabilis (Seaside fiddleneck)
    tessellata var. tessellata (Checker fiddleneck)
Cryptantha
    angustifolia (Narrow-leaved forget-me-not)
    barbigera (Bearded cryptantha)
    cinerea var. abortiva (Bownut cryptantha)
    circumscissa (Cushion cryptantha)
    clevelandii (Cleveland's popcorn flower)
    confertiflora (Yellow cryptantha)
    costata (Ribbed forget-me-not)
    decipiens (Gravel cryptantha)
    dumetorum (Bushloving cryptantha)
    echinella (Prickly popcorn flower)
    holoptera (Winged cryptantha)
    intermedia (Large-flowered popcorn flower)
    maritima (Guadalupe cryptantha)
    micrantha (Redroot cryptantha)
    microstachys (Tejon cryptantha)
    mohavensis (Mojave cryptantha)
    muricata (Prickly cryptantha)
    pterocarya (Wingnut cryptantha)
    racemosa (Bushy cryptantha)
    recurvata (Curvenut cryptantha)
    simulans (Pinewoods cryptantha)
    tumulosa (New York Mountains cryptantha)
    utahensis (Scented forget-me-not)
    virginensis (Virgin River cryptantha)
Echium fastuosum (Pride of madeira)**
Harpagonella palmeri (Palmer's grappling hook)
Heliotropium curassavicum (Wild heliotrope)
Lappula redowskii var. cupulata (Stickseed)
Pectocarya
    heterocarpa (Hairy-leaved pectocarya)
    linearis ssp. ferocula (Slender pectocarya)
    penicillata (Winged pectocarya)
    platycarpa (Broad-fruited pectocarya)
    recurvata (Curvenut pectocarya)
    setosa (Bristly pectocarya)
Plagiobothrys
    acanthocarpus (Adobe popcorn flower)
    arizonicus (Arizona popcorn flower)
    canescens (Valley popcorn flower)
    collinus var. fulvescens (California popcorn flower)
    fulvus (Tawny popcorn flower)
    jonesii (Mojave popcorn flower)
    nothofulvus (Rusty-haired popcorn flower)
    undulatus (Hooked popcorn flower)
Tiquilia
    canescens (Woody crinklemat)
    nuttallii (Nuttall's crinklemat)
    palmeri (Palmer's crinklemat)
    plicata (Fanleaf crinklemat)

Brassicaceae (Mustard):

Arabidopsis thaliana (Mouse-ear cress)*
Arabis
    glabra var. glabra (Tower mustard)
    holboellii var. pinetorum (Pine rock-cress)
    parishii (Parish's rock-cress)
    perennans (Perennial rock-cress)
    platysperma var. platysperma (Broad-seeded rock-cress)
    pulchra var. gracilis (Slender beautiful rock-cress)
    pulchra var. pulchra (Beautiful rock-cress)
    rectissima var. rectissima (Bristly-leaved rock-cress)
    repanda var. repanda (Yosemite rock-cress)
    shockleyi (Shockley's rock-cress)
    sparsiflora var. californica (Elegant rock-cress)
Athysanus pusillus (Dwarf athysanus)
Barbarea orthoceras (Winter cress)
Brassica
    fruticulosa (Mediterranean cabbage)*
    nigra (Black mustard)*
    rapa (Field mustard)*
    tournefortii (Asian mustard)*
Cakile maritima (Sea rocket)*
Capsella bursa-pastoris (Shepherd's purse)*
Cardamine
    californica var. californica (Milkmaids)
    oligosperma (Bitter cress)
Caulanthus
    amplexicaulis var. amplexicaulis (Clasping-leaved caulanthus)
    cooperi (Cooper's jewelflower)
    coulteri var. coulteri (Coulter's jewelflower)
    crassicaulis var. crassicaulis (Thickstem wildcabbage)
    hallii (Hall's caulanthus)
    heterophyllus var. heterophyllus (Slender-pod jewelflower)
    inflatus (Desert candle)
    major var. major (Slender wildcabbage)
    simulans (Payson's jewelflower)
Coronopus didymus (Wart cress)*
Cusickiella douglasii (Alkali draba)
Descurainia
    californica (Sierra tansy mustard)
    incana (Mountain tansy mustard)
    pinnata (Tansy mustard)
Dithyrea californica (Spectacle pod)
Draba
    corrugata var. corrugata (Southern California draba)
    cuneifolia (California draba)
    verna (Spring draba)
Erysimum
    capitatum ssp. capitatum (Western wallflower)
    insulare ssp. insulare (Island wallflower)
Guillenia lasiophylla (California mustard)
Hirschfeldia incana (Mediterranean mustard)*
Hutchinsia procumbens (Prostrate hutchinsia)
Lepidium
    flavum var. flavum (Yellow peppergrass)
    fremontii var. fremontii (Desert alyssum)
    lasiocarpum var. lasiocarpum (Hairy-podded peppergrass)
    latifolium (Perennial peppergrass)*
    nitidum var. nitidum (Shiny peppergrass)
    perfoliatum (Clasping pepperweed)*
    virginicum var. pubescens (Wild peppergrass)
    virginicum var. robinsonii (Robinson's peppergrass)
Lesquerella
    kingii ssp. bernardina (San Bernardino Mountains bladderpod)
    kingii ssp. kingii (King's bladderpod)
    tenella (Palmer beadpod)
Lobularia maritima (Sweet alyssum)*
Lunaria annua (Annual moonwort)*
Lyrocarpa coulteri var. palmeri (Coulter's lyrepod)
Malcolmia africana (African mustard)*
Matthiola incana (Garden stock)*
Raphanus sativus (Wild radish)*
Rorippa
    curvisiliqua (Curvepod yellowcress)
    nasturtium-aquatica (Watercress)*
    palustris var. occidentalis (Western bog yellow-cress)
Sisymbrium
    altissimum (Tumble mustard)*
    irio (London rocket)*
    officinale (Hedge mustard)*
    orientale (Oriental mustard)*
Stanleya
    elata (Panamint prince's plume)
    pinnata var. inyoensis (Inyo prince's plume)
    pinnata var. pinnata (Prince's plume)
Streptanthella longirostris (Longbeak streptanthella)
Streptanthus
    bernardinus (Laguna Mountains jewelflower)
    cordatus (Heartleaf jewelflower)
Thelypodium
    integrifolium ssp. affine (Entire-leaved thelypodium)
    stenopetalum (Slender-petalled mustard)
Thysanocarpus
    curvipes (Fringe-pod)
    laciniatus (Lace-pod)
Tropidocarpum gracile (Dobiepod)

Buddlejaceae (Buddleja):

Buddleja utahensis (Panamint butterfly bush)


Burseraceae (Torchwood):

Bursera microphylla (Elephant tree)

Cactaceae (Cactaceae):

Bergerocactus emoryi (Golden-spined cereus)
Carnegiea gigantea (Giant saguaro)
Cylindropuntia
    californica var. parkeri (Cane cholla)
    ganderi (Gander's cholla)
Echinocactus polycephalus var. polycephalus (Cottontop cactus)
Echinocereus
    engelmannii (Engelmann's hedgehog cactus)
    triglochidiatus (Mojave mound cactus)
Escobaria
    vivipara var. alversonii (Alverson's spinystar)
    vivipara var. deserti (Desert spinystar)
    vivipara var. rosea (Rosy spinystar)
Ferocactus
    cylindraceus var. cylindraceus (California barrel cactus)
    cylindraceus var. lecontei (LeConte's barrel cactus)
    viridescens (Coast barrel cactus)
Mammillaria
    dioica (Fishhook Cactus)
    tetrancistra (Fishhook cactus)
Opuntia
    acanthocarpa var. coloradensis (Buckhorn cholla)
    basilaris var. basilaris (Beavertail cactus)
    basilaris var. brachyclada (Short-joint beavertail cactus)
    bigelovii (Jumping cholla)
    chlorotica (Pancake prickly-pear)
    echinocarpa (Silver cholla)
    erinacea var. erinacea (Mojave prickly-pear)
    ficus-indica (Mission cactus)
    X fosbergii (Fosberg's cholla)
    littoralis (Coast prickly-pear)
    occidentalis (Western prickly-pear)
    oricola (Chaparral prickly-pear)
    parishii (Mat cholla)
    parryi (Valley cholla)
    phaeacantha (Desert prickly-pear)
    prolifera (Coast cholla)
    ramosissima (Pencil cholla)
    vaseyi (Vasey's prickly-pear)
    wolfii (Wolf's cholla)

Callitricaceae (Water-starwort):

Callitriche heterophylla var. bolanderi (Water-starwort)


Calycanthaceae (Calycanthus):

Calycanthus occidentalis (Spicebush)*

Campanulaceae (Bellflower):

Downingia
    bella (Spotted downingia)
    cuspidata (Toothed calicoflower)
Githopsis
    diffusa ssp. candida (White-flowered bluecup)
    diffusa ssp. diffusa (San Gabriel bluecup)
Heterocodon rariflorum (Few-flowered heterocodon)
Lobelia dunnii var. serrata (Dunn's lobelia)
Nemacladus
    glanduliferus var. orientalis (Eastern glandular threadplant)
    ramosissimus (Smallflower threadplant)
    rubescens (Desert threadplant)
    sigmoideus (Sigmoid threadplant)
Triodanis biflora (Venus looking-glass)

Capparaceae (Caper):

Cleome sparsifolia (Naked cleome)
Cleomella obtusifolia (Mojave stinkweed)
Isomeris arborea (Bladderpod)
Oxystylis lutea (False-clover)

Caprifoliaceae (Honeysuckle):

Lonicera
    hispidula var. vacillans (Hairy honeysuckle)
    interrupta (Chaparral honeysuckle)
    involucrata (Twinberry)
    subspicata var. denudata (Southern honeysuckle)
Sambucus
    mexicana (Mexican elderberry)
    racemosa var. microbotrys (Red elderberry)
Symphoricarpos
    albus var. laevigatus (White snowberry)
    longiflorus (Desert snowberry)
    mollis (Creeping snowberry)
    rotundifolius var. parishii (Mountain snowberry)

Caryophyllaceae (Pink):

Achyronychia cooperi (Frostmat)
Arenaria
    kingii (King's sandwort)
    macradenia var. macradenia (Desert sandwort)
    ursina (Bear valley sandwort)
Cardionema ramosissimum (Sandmat)
Cerastium
    fontanum ssp. vulgare (Perennial chickweed)*
    glomeratum (Mouse-ear chickweed)*
Hernieria hirsuta ssp. cinerea (Gray hernieria)*
Petrorhagia dubia (Hairypink)*
Polycarpon tetraphyllum (Four-leaf allseed)*
Pseudostellaria jamesiana (Sticky starwort)
Sagina
    apetala (Dwarf pearlwort)*
    saginoides (Alpine pearlwort)
Scopulophila rixfordii (Rixford's rockwort)
Silene
    antirrhina (Sleepy catchfly)
    gallica (Windmill pink)*
    laciniata ssp. major (Indian pink)
    lemmonii (Lemmon's catchfly)
    menziesii (Menzies' campion)
    multinervia (Many-nerved catchfly)
    parishii (Parish's catchfly)
    verecunda ssp. platyota (White catchfly )
Spergularia
    bocconei (Boccone's sand spurrey)*
    macrotheca ssp. macrotheca (Sticky sand spurrey)
    marina (Salt marsh sand spurrey)
    villosa (Hairy sand spurrey)*
Stellaria
    longipes var. longipes (Meadow starwort)
    media (Chickweed)*


Celastraceae (Staff-tree):

Euonymus occidentalis var. parishii (Burning bush)
Mortonia utahensis (Mortonia)


Chenopodiaceae (Goosefoot):

Atriplex
    amnicola (Swamp saltbush)*
    californica (California saltbush)
    canescens ssp. canescens (Fourwing saltbush)
    confertifolia (Shadscale saltbush)
    glauca (Waxy saltbush)*
    hymenelytra (Desert-holly)
    lentiformis ssp. lentiformis (Quail bush)
    lentiformis ssp. torreyi (Torrey's saltbush)
    leucophylla (Beach saltbush)
    pacifica (Pacific saltbush)
    phyllostegia (Arrowscale)
    polycarpa (Cattle spinach)
    semibaccata (Australian saltbush)*
    triangularis (Arrowleaf saltbush)
    watsonii (Watson's saltbush)
Bassia hyssopifolia (Five-hook bassia)
Beta vulgaris (Common beet)*
Chenopodium
    album (Lamb's quarters)*
    ambrosioides (Mexican-tea)*
    atrovirens (Forest goosefoot)
    botrys (Jerusalem-oak goosefoot )*
    californicum (California goosefoot)
    fremontii (Fremont's goosefoot)
    hians (Gaping goosefoot)
    macrospermum var. halophilum (Coast goosefoot)*
    murale (Nettleleaf goosefoot)*
    pratericola (Meadow goosefoot)
Grayia spinosa (Spiny hopsage)
Krascheninnikovia lanata (Winterfat)
Monolepis nuttalliana (Nuttall's poverty weed)
Salicornia
    subterminalis (Glasswort)
    virginica (Virginia pickleweed)
Salsola
    paulsenii (Barbwire Russian thistle)*
    tragus (Russian thistle)*
Sarcobatus vermiculatus (Greasewood)
Suaeda
    esteroa (Estuary sea-blite)
    moquinii (Rush seepweed)
    taxifolia (Woolly sea-blite

Cistaceae (Rock-rose):

Cistus
    creticus (Pink rock-rose)*
    ladanifer var. albiflorus (White-flowered rock-rose)*
    ladanifer var. maculatus (Crimson-spot rock-rose)*
    Xpurpureus (Orchid rock-rose)*
Helianthemum scoparium (Rush-rose or wild rock-rose)

Commelinaceae (Spiderwort):

Commelina benghalensis (Bengal dayflower)**

Convolvulaceae (Morning glory):

Calystegia
    collina ssp. venusta (Coast range bindweed)
    macrostegia ssp. amplissima (Southern island morning glory)
    macrostegia ssp. arida (Southern California morning glory)
    macrostegia ssp. cyclostegia (Coast morning glory)
    macrostegia ssp. intermedia (South coast morning glory)
    macrostegia ssp. macrostegia (Northern island morning glory)
    macrostegia ssp. tenuifolia (San Diego morning glory)
    malacophylla ssp. pedicellata (Jepson's morning glory)
    occidentalis ssp. fulcrata (Western morning glory)
    soldanella (Beach morning glory)
Convolvulus
    arvensis (Bindweed)*
    simulans (Small-flowered morning glory)
Cressa truxillensis (Alkali weed)
Dichondra occidentalis (Western dichondra)

Cornaceae (Dogwood):

Cornus
    nuttalii (Mountain dogwood)
    sericea ssp. sericea (American dogwood)

Crassulaceae (Stonecrop):

Crassula
    argentea (Jade plant)**
    connata (Pygmy weed)
Dudleya
    abramsii ssp. affinis (San Bernardino Mountains dudleya)
    arizonica (Arizona chalk dudleya)
    attenuata ssp. orcuttii (Orcutt's dudleya)
    caespitosa (Sand-lettuce)
    candelabrum (Candleholder dudleya)
    cymosa ssp. crebifolia (San Gabriel River dudleya)
    cymosa ssp. marcescens (Santa Monica Mountains dudleya)
    cymosa ssp. pumila (Low canyon dudleya)
    densiflora (San Gabriel Mountains dudleya)
    edulis (Ladies' fingers)
    greenei (Greene's dudleya)
    hassei (Hasse's dudleya)
    lanceolata (Lanceleaf dudleya)
    multicaulis (Many-stemmed dudleya)
     pulverulenta ssp. pulverulenta (Chalk dudleya)
    saxosa ssp. aloides (Rock dudleya)
    traskiae (Santa Barbara Island dudleya)
    variegata (Variegated dudleya)
    viscida (Sticky dudleya)
Sedum
    niveum (Davidson's stonecrop)
    spathulifolium (Broadleaf stonecrop)

Crossosomataceae (Crossosoma):

Crossosoma bigelovii (Rock crossosoma)
Crossosoma californicum (Catalina crossosoma)
Glossopetalon spinescens (Spiny greasebush)

Cucurbitaceae (Gourd):

Brandegea bigelovii (Brandegea)
Cucurbita
    foetidissima (Calabazilla)
    palmata (Coyote melon)
Marah
    macrocarpus var. macrocarpus (Wild cucumber)
    macrocarpus var. major (Island wild cucumber)