Resedaceae (Mignonette):

Oligomeris linifolia (Oligomeris)

Rhamnaceae (Buckthorn):

Adolphia californica (California adolphia)
Ceanothus
    arboreus (Island ceanothus)
    cordulatus (Mountain whitethorn)
    crassifolius (Hoaryleaf ceanothus)
    cuneatus var. cuneatus (Buckbrush)
    cyaneus (Lakeside ceanothus)
    greggii var. perplexans, see Ceanothus perplexans
    greggii var. vestitus, see Ceanothus vestitus
    integerrimus var. macrothyrsus (Deerbrush)
    leucodermis (Chaparral whitethorn)
    megacarpus var. megacarpus (Big-pod ceanothus)
    oliganthus var. oliganthus (Hairy ceanothus)
    oliganthus var. sorediatus (Jim brush)
    palmeri (Palmer's ceanothus)
    papillosus (Wartleaf ceanothus)
    perplexans (Cupleaf ceanothus)
    spinosus (Greenbark ceanothus)
    tomentosus (Woollyleaf ceanothus)
    verrucosus (Wartstem ceanothus)
    vestitus (Mojave ceanothus)
Frangula 
    californica ssp. californica (Coffeeberry)
    californica ssp. cuspidata (Sierra hoary coffeeberry)
    californica ssp. tomentella (Hoary coffeeberry)
Rhamnus
    crocea (Littleleaf redberry)
    ilicifolia (Hollyleaf redberry)
    pirifolia (Island redberry)
Ziziphus parryi (Lotebush)

Rosaceae (Rose):

Adenostoma
    fasciculatum (Chamise)
    sparsifolium (Red shanks or ribbon bush)
Amelanchier utahensis (Utah serviceberry)
Aphanes occidentalis (Western lady's mantle)
Cercocarpus
    betuloides var. betuloides (Birch-leaf mountain mahogany)
    betuloides var. blancheae (Island mountain mahogany)
    intricatus, see Cercocarpus ledifolius var. intricatus
    ledifolius var. intricatus (Little-leaved mountain mahogany)
    ledifolius var. intermontanus (Curl-leaf mountain mahogany)
    minutiflorus (San Diego mountain mahogany)
    traskiae (Catalina Island mountain mahogany)
Chamaebatia australis (Southern mountain misery)
Chamaebatiaria millefolium (Desert sweet)
Coleogyne ramosissima (Blackbrush)
Drymocallis
    cuneifolia var. ewanii (Ewan's cinquefoil)
    glandulosa var. reflexa (Sticky cinquefoil)
    glandulosa var. viscida (Sticky cinquefoil)
    glandulosa var. wrangelliana (Sticky cinquefoil)
    lactea var. lactea (Nevada cinquefoil)
Duchesnea indica var. indica (Mock-strawberry)*
Fallugia paradoxa (Apache plume)
Fragaria vesca (Wild strawberry)
Geum macrophyllum var. perincisum (Large-leaved avens)
Heteromeles arbutifolia (Toyon)
Holodiscus
    discolor var. discolor (Cream bush)
    discolor var. microphyllus (Small-leaved cream bush)
    microphyllus var. microphyllus, see Holodiscus discolor var. microphyllus
Horkelia
    clevelandii (Cleveland's horkelia)
    cuneata (Wedgeleaf horkelia)
    rydbergii (Rydberg's horkelia)
    truncata (Ramona horkelia)
    wilderae (Barton Flats horkelia)
Ivesia
    argyrocoma (Silver-haired ivesia)
    callida (Tahquitz ivesia)
    santolinoides (Mousetail ivesia)
    saxosa (Rock ivesia)
Lyonothamnus
    floribundus ssp. aspleniifolius (Fernleaf ironwood)
    floribundus ssp. floribundus (Santa Catalina Island ironwood)
Oemleria cerasiformis (Oso berry)
Petrophyton caespitosum (Rock spiraea)
Physocarpus capitatus (Pacific ninebark)
Potentilla
    anserina ssp. anserina (Silverleaf cinquefoil)
    anserina ssp. pacifica (Silverweed)
    biennis (Biennial cinquefoil)
    glandulosa ssp. ewanii, see Drymocallis cuneifolia var. ewanii
    glandulosa ssp. glandulosa in part, see Drymocallis glandulosa var. wrangelliana (SoCO)
    glandulosa ssp. nevadensis, see Drymocallis lactea var. lactea
    glandulosa ssp. reflexa in part, see Drymocallis glandulosa var. reflexa (TR,PR)
    glandulosa ssp. reflexa in part, see Drymocallis glandulosa var. viscida (TR,PR)
    gracilis var. fastigiata (Slender cinquefoil)
    norvegica (Norwegian cinquefoil)*
    wheeleri (Wheeler's cinquefoil)
Prunus
    andersonii (Desert peach)
    emarginata (Bitter cherry)
    eremophila (Desert prunus)
    fasciculata var. fasciculata (Desert almond)
    fremontii (Desert apricot)
    ilicifolia ssp. ilicifolia (Hollyleaf cherry)
    ilicifolia ssp. lyonii (Catalina cherry)
    virginiana var. demissa (Western chokecherry)
Purshia
    mexicana var. stansburyana (Cliff rose)
    tridentata var. glandulosa (Desert bitterbrush)
Pyracantha sp. (Firethorn)**
Rosa
    californica (Wild rose)
    gymnocarpa (Wood rose)
    minutifolia (Small-leaved rose)
    woodsii var. ultramontana (Interior rose)
Rubus
    discolor (Himalaya-berry)*
    leucodermis (Western raspberry)
    parviflorus (Thimbleberry)
    ursinus (California blackberry)
Sibbaldia procumbens (Sibbaldia)


Rubiaceae (Madder):

Galium
    andrewsii ssp. andrewsii (Phlox-leaved bedstraw)
    andrewsii ssp. intermedium (Phlox-leaved bedstraw)
    angustifolium ssp. angustifolium (Narrow-leaved bedstraw)
    angustifolium ssp. foliosum (Leafy bedstraw)
    angustifolium ssp. gabrielense (San Antonio Canyon bedstraw)
    angustifolium ssp. gracillimum (Slender bedstraw)
    angustifolium ssp. jacinticum (San Jacinto Mountains bedstraw)
    angustifolium ssp. nudicaule (Naked-stem bedstraw)
    aparine (Annual bedstraw)
    bifolium (Twinleaf bedstraw)
    buxifolium (Boxwood-leaved bedstraw)
    californicum ssp. miguelense (San Miguel Island bedstraw)
    catalinense (Catalina Island bedstraw)
    hallii (Nodding bedstraw)
    hilendiae ssp. hilendiae (Hilend's bedstraw)
    murale (Tiny bedstraw)
    nuttallii ssp. insulare (Nuttall's island bedstraw)
    nuttallii ssp. nuttallii (Climbing bedstraw)
    parishii (Parish's bedstraw)
    parisiense (Wall bedstraw)*
    porrigens var. porrigens (Graceful bedstraw)
    stellatum (Star-flowered bedstraw)
    trifidum ssp. columbianum (Three-petal bedstraw)
    trifidum ssp. subbiflorum (Three-petal bedstraw)
Kelloggia galioides (Kelloggia)
Sherardia arvensis (Field madder)*


Ruscaceae (Ruscus):

Maianthemum
    racemosa (False solomon's seal)
    stellatum (Star-flowered false solomon's seal)
Nolina
    bigelovii (Beargrass)
    cismontana (Chaparral beargrass)
    interrata (Dehesa nolina)
    parryi (Parry's nolina)
Smilacina
    racemosa, see Maianthemum racemosum
    stellata, see Maianthemum stellatum

Rutaceae (Rue):

Cneoridium dumosum (Bushrue)
Thamnosma montana (Turpentine-broom)

Salicaceae (Willow):

Populus
    balsamifera ssp. trichocarpa (Black cottonwood)
    fremontii ssp. fremontii (Fremont's cottonwood)
    tremuloides (Quaking aspen)
Salix
    exigua (Sandbar willow)
    gooddingii (Goodding's black willow)
    laevigata (Red willow)
    lasiolepis (Arroyo willow)
    lemmonii (Lemmon's willow)
    lucida ssp. lasiandra (Shining willow)
    scouleriana (Scouler's willow)


Sapindaceae (Soapberry):

Acer
    glabrum var. diffusum (Mountain maple)
    macrophyllum (Big-leaf maple)
    negundo (Box elder)
Aesculus californica (California buckeye)


Sarcobataceae (Greasewood):

Sarcobatus vermiculatus (Greasewood)


Saururaceae (Lizard-tail):

Anemopsis californica (Yerba mansa)

Saxifragaceae (Saxifrage):

Boykinia
    occidentalis (Coast boykinia)
    rotundifolia (Round-leaved boykinia)
Heuchera
    abramsii (Abrams' alumroot)
    brevistaminea (Mount Laguna alumroot)
    caespitosa (Urn-flowered alumroot)
    elegans, see Heuchera caespitosa
    hirsutissima (Shaggy-haired alumroot)
    maxima (Island alumroot)
    parishii (San Bernardino Mountains alumroot)
    rubescens var. alpicola (Pink alumroot)
Jepsonia parryi (Parry's jepsonia)
Lithophragma
    affine (Woodland star)
    bolanderi (Bolander's woodland stars)
    heterophyllum (Hillside woodland star)
    tenellum (Slender woodland star)
Saxifraga californica (California saxifrage)

Scrophulariaceae (Figwort):

Buddleja utahensis (Panamint butterfly bush)
Castilleja, see family Orobanchaceae
Cordylanthus, see family Orobanchaceae
Galvezia speciosa, see family Plantaginaceae
Limosella acaulis (Stemless mudwort)
Myoporum laetum (Myoporum)*
Pedicularis, see family Orobanchaceae
Scrophularia
    californica (California figwort)
    desertorum (Desert figwort)
Verbascum
    thapsus (Woolly mullein)*
    virgatum (Wand mullein)*
Veronica, see family Plantaginaceae


Selaginellaceae (Selaginella):

Selaginella
    asprella (Bluish spike-moss)
    bigelovii (Bigelow's spike-moss )
    cinerascens (Ashy spike-moss)
    eremophila (Desert spike-moss)
    hansenii (Hansen's spike-moss)
    watsonii (Watson's spike-moss)

Simaroubaceae (Quassia or Simarouba):

Ailanthus altissima (Tree of heaven)*
Castela emoryi (Crucifixion thorn)

Simmondsiaceae (Jojoba):

Simmondsia chinensis (Jojoba)

Solanaceae (Nightshade):

Datura
    discolor (Desert thornapple)
    wrightii (Sacred datura)
Lycium
    andersonii (Anderson thornbush)
    brevipes var. brevipes (Desert thorn)
    californicum (California boxthorn)
    cooperi (Cooper's boxthorn)
    fremontii (Fremont's thornbush)
Nicotiana
    attenuata (Coyote tobacco)
    glauca (Tree tobacco)*
    obtusifolia (Desert tobacco)
    quadrivalvis (Indian tobacco)
Petunia parviflora (Seaside petunia)
Physalis
    crassifolia (Thick-leaved ground-cherry)
    hederifolia var. fendleri (Fendler's ground-cherry)
    lobata (Lobed ground-cherry)
Solanum
    americanum (Small-flowered nightshade)
    douglasii (White nightshade)
    elaeagnifolium (Silverleaf horse-nettle)*
    parishii (Parish's nightshade)
    umbelliferum (Blue-witch nightshade)
    xanti (Purple nightshade)


Styracaceae (Storax):

Styrax
    officinalis var. redivivus, see Styrax redivivus
     redivivus (Snowdrop bush)


Tamaricaceae (Tamarisk):

Tamarix
    aphylla (Athel)*
    parviflora (Small-flowered tamarisk)*
    ramosissima (Salt cedar)*


Themidaceae (Brodiaea):

Bloomeria
    crocea var. crocea (Golden stars)
    crocea var. montana (Golden stars)
Brodiaea
    elegans (Harvest brodiaea)
    filifolia (Thread-leaved brodiaea)
    orcuttii (Orcutt's brodiaea)
    santarosae (Santa Rosa basalt brodiaea)
    terrestris ssp. kernensis (Earth brodiaea)
Dichelostemma capitatum ssp. capitatum (Blue dicks)
Muilla
    clevelandii (Cleveland's muilla)
    maritima (Common muilla)
Triteleia
    laxa (Ithuriel's spear)
    lugens (Coast range triteleia)


Theophrastaceae (Theophrasta):

Samolus parviflorus (Water-pimpernel)

Typhaceae (Cattail):

Typha
    domingensis (Southern cattail)
    latifolia (Broad-leaved cattail)


Urticaceae (Nettle):

Hesperocnide tenella (Black hair nettle)
Parietaria
    hespera var. hespera (Pellitory)
    pensylvanica (Pennsylvania pellitory)
Urtica
    dioica ssp. holosericea (Hoary nettle)
    urens (Dwarf nettle)*

Valerianaceae (Valerian):

Centranthus ruber (Red valerian)*
Plectritis ciliosa ssp. insignis (Long-spurred plectritis)

Verbenaceae (Vervain):

Aloysia wrightii (Vera dulce)
Verbena
    bracteata (Big-bract verbena)
    gooddingii (Goodding's verbena)
    lasiostachys var. lasiostachys (Western vervain)
    lasiostachys var. scabrida (Robust vervain)
    menthifolia (Mint-leaved vervain)

Violaceae (Violet):

Viola
    adunca ssp. adunca (Blue violet)
    douglasii (Douglas's violet)
    lobata ssp. lobata (Yellow violet)
    macloskeyi (Macloskey's violet)
    pedunculata (Johnny-jump-up)
    pinetorum ssp. grisea (Gray-leaved violet)
    pinetorum ssp. pinetorum (Pine violet)
    purpurea ssp. quercetorum (Oak violet)
    sheltonii (Shelton's violet)

Viscaceae (Mistletoe):

Arceuthobium campylopodum (Western dwarf mistletoe)
Phoradendron
    bolleanum (Fir mistletoe)
    californicum (Desert mistletoe)
    densum (Dense mistletoe)
    juniperinum (Juniper mistletoe)
    libocedri (Incense-cedar mistletoe)
    macrophyllum (Big-leaf mistletoe)
    villosum (Oak mistletoe)

Vitaceae (Grape):

Vitis girdiana (Wild grape)


Woodsiaceae (Cliff fern):

Athyrium filix-femina var. cyclosorum (Lady fern)
Cystopteris fragilis (Brittle fern)
Woodsia oregana (Oregon cliff fern)


Zygophyllaceae (Caltrop):

Fagonia
    laevis (Smooth-stemmed fagonia)
    pachyacantha (Sticky fagonia)
Kallstroemia
    californica (California kallstroemia)
    parviflora (Few-flowered caltrop)
Larrea tridentata (Creosote bush)
Tribulus terrestris (Puncture vine)*