Mt. Wilson Trail Plant List By Latin name *Acacia baileyana (Cootamundra wattle) Acer macrophyllum (Bigleaf maple) Achillea millefolium (Yarrow) Acmispon glaber var. brevialatus (Short-winged deerweed) Acmispon glaber var. glaber (Common deerweed) Acmispon maritimus var. maritimus (Coastal lotus) Acmispon nevadensis var. davidsonii (Davidson’s lotus) Acmispon strigosus (Strigose lotus) Acourtia microcephala (Sacapellote) Adenostoma fasciculatum (Chamise) Adiantum aleuticum (Five-finger fern) *Ageratina adenophora (Thoroughwort*) Agoseris retrorsa (Retrorse spearleaf mountain dandelion) Alnus rhombifolia (White alder) Ambrosia acanthicarpa (Annual bur-sage) (NOT SEEN BUT ON TOM'S PLANT GUIDE) Amorpha californica var. californica (California false-indigo) Amsinckia intermedia (Common fiddleneck) *Anthriscus caucalis (Bur-chervil) Antirrhinum kelloggii (Twining snapdragon) Arbutus menziesii (Pacific madrone) Arctostaphylos glandulosa ssp. mollis (Transverse Range manzanita) Arctostaphylos glauca (Bigberry manzanita) Argemone munita (Prickly poppy) (NOT SEEN, INAT REPORT, TO BE EXPECTED) Artemisia californica (California sagebrush) Artemisia douglasiana (Mugwort) Aspidotis californica (California lace fern) Asterella californica (California liverwort) Asterella palmeri (Palmer's liverwort) *Avena barbata (Slender wild oats) Baccharis salicifolia ssp. salicifolia (Mulefat) *Bidens pilosa var. pilosa (Common beggarticks) *Bituminaria bituminosa (Pitch trefoil) Boechera arcuata (Arching rock-cress) Boykinia rotundifolia (Round-leaved boykinia) Brickellia californica (California brickellbush) Brickellia nevinii (Nevin's brickellbush) *Bromus diandrus (Ripgut brome) *Bromus hordeaceus (Soft chess) (NOT SEEN, ON TOM'S PLANT GUIDE) *Bromus madritensis ssp. rubens (Red brome) Calocedrus decurrens (Incense-cedar) Calochortus albus (Fairy lantern) Calochortus plummerae (Plummer's mariposa lily) Calyptridium monandrum (Sand cress) Calystegia macrostegia ssp. arida (Southern California morning glory) Camissoniopsis confusa (San Bernardino sun cup) *Capsella bursa-pastoris (Shepherd's purse) Cardamine californica (Milkmaids) Cardamine oligosperma (Bittercress) *Carduus pycnocephalus ssp. pycnocephalus (Italian thistle) Castilleja applegatei ssp. martinii (Martin's paintbrush) Caulanthus lasiophyllus (California mustard) Ceanothus crassifolius var. crassifolius (Hoaryleaf ceanothus) Ceanothus integerrimus var. macrothyrsus (Deerbrush) Ceanothus leucodermis (Chaparral whitethorn) Ceanothus megacarpus var. megacarpus (Bigpod ceanothus) Ceanothus oliganthus var. oliganthus (Hairyleaf ceanothus) Ceanothus spinosus (Greenbark ceanothus) (CONFIRM) *Centaurea melitensis (Tocalote) Cercocarpus betuloides var. betuloides (Birch-leaf mountain mahogany) Chaenactis artemisiifolia (White pincushion) Chaenactis glabriuscula var. glabriuscula (Yellow pincushion) *Chasmanthe floribunda (African cornflag) (GARDEN ESCAPE) Chenopodium berlandieri (Pitseed goosefoot) (NEEDS CONFIRMING, collect seeds when available) *Chenopodium murale (Nettleleaf goosefoot) (NOT SEEN, INAT RECORD) Chlorogalum pomeridianum var. pomeridianum (Soap plant) Cirsium occidentale var. occidentale (Cobweb thistle) Clarkia bottae (Farewell-to-spring) Clarkia epilobioides (Canyon clarkia) Clarkia unguiculata (Elegant clarkia) Claytonia perfoliata ssp. mexicana (Southern miner's lettuce) Clematis lasiantha (Pipestems) Collinsia heterophylla var. austromontana (Downy chinese houses) Collinsia parryi (Parry’s collinsia) Cordylanthus rigidus ssp. setiger (Bristly bird's beak) Corethrogyne filaginifolia (California aster) *Cosmos bipinnatus (Mexican aster) (GARDEN ESCAPE) *Cotula australis (Australian brass buttons) *Crassula ovata (Jade) (GARDEN ESCAPE) Cryptantha intermedia var. intermedia (Large-flowered cryptantha) Cryptantha microstachys (Tejon cryptantha) Cryptantha muricata var. jonesii (Jones’ cryptantha) Cryptantha muricata var. muricata (Showy prickly-nut cryptantha) Cuscuta carnica var. californica (California dodder) Cuscuta subinclusa (Canyon dodder) *Cynodon dactylon (Bermuda grass) Cystopteris fragilis (Brittle fern) *Delairea odorata (Cape-ivy) Delphinium cardinale (Scarlet larkspur) Delphinium patens ssp. hepaticoideum (Spreading larkspur) Dichelostemma capitatum ssp. capitatum (Blue dicks) *Digitalis purpurea (Foxglove) (GARDEN ESCAPE) Diplacus longiflorus (Bush monkeyflower) Diplacus brevipes (Yellow monkeyflower) Drymocallis glandulosa var. glandulosa (Inland sticky cinquefoil) Dryopteris arguta (Coastal wood fern) Dudleya cymosa ssp. pumila (Low canyon dudleya) Dudleya lanceolata (Lanceleaf dudleya) Elymus glaucus ssp. glaucus (Blue wildrye) *Elymus hispidus (Intermediate wheat grass) Emmenanthe penduliflora var. penduliflora (Whispering bells) Epilobium canum ssp. canum (Hoary fuchsia) Epilobium canum ssp. latifolium (California fuchsia) Ericameria cuneata var. cuneata (Rock goldenbush) Ericameria parishii var. parishii (Parish's goldenbush) *Erigeron bonariensis (Small horseweed) Erigeron canadensis (Tall horseweed) Erigeron foliosus var. foliosus (Leafy daisy) Eriodictyon parryi (Poodle-dog bush) Eriodictyon trichocalyx var. trichocalyx (Smoothleaf yerba santa) Eriogonum davidsonii (Davidson’s buckwheat) Eriogonum elongatum var. elongatum (Longstem buckwheat) Eriogonum fasciculatum var. foliolosum (Leafy buckwheat) (toward bottom of trail) Eriogonum fasciculatum var. polifolium (California wild buckwheat) (toward top of trail) Eriophyllum confertiflorum var. confertiflorum (Golden yarrow) *Erodium cicutarium (Redstem filaree) Erysimum capitatum var. capitatum (Western wallflower) Erythrantha cardinalis (Scarlet monkeyflower) Erythranthe guttata (Creek monkeyflower) Eschscholzia caespitosa (Tufted poppy) Eschscholzia californica (California poppy) Eucrypta chrysanthemifolia var. chrysanthemifolia (Common eucrypta) Eulobus californicus (California sun cup) Euphorbia melanadenia (Red-gland spurge) *Euphorbia peplus (Petty spurge) *Festuca perennis (Italian ryegrass) Frangula californica ssp. californica (Coffeeberry) Galium angustifolium ssp. angustifolium (Narrow-leaved bedstraw) Galium aparine (Annual bedstraw) Galium grande (San Gabriel bedstraw) Galium porrigens var. porrigens (Graceful bedstraw) Gilia capitata ssp. abrotanifolia (Globe gilia) Hazardia squarrosa var. grindelioides (Sawtooth goldenbush) Helianthus annuus (Common sunflower) *Hedera helix (English ivy) (GARDEN ESCAPE) Hesperoyucca whipplei (Chaparral yucca) Heteromeles arbutifolia (Toyon) Heuchera elegans (Elegant alumroot) Hieracium argutum (Hawkweed) *Hirschfeldia incana (Shortpod mustard) *Hordeum murinum (Foxtail barley) Hosackia crassifolia var. crassifolia (Broad-leaved lotus) Juglans californica (California black walnut) Keckiella cordifolia (Heartleaf penstemon) Keckiella ternata var. ternata (Whorl-leaf penstemon) *Lactuca serriola (Prickly lettuce) *Lamarckia aurea (Goldentop grass) *Lantana montevidensis (Trailing lantana) Lathyrus vestitus var. vestitus (Canyon sweet pea) Layia glandulosa (White tidy tips) Lepidium virginicum ssp. menziesii (Wild peppergrass) Lilium humboldtii ssp. ocellatum (Humboldt lily) Linanthus californicus (Prickly phlox) Lithophragma affine (Woodland star) *Lobularia maritima (Sweet alyssum) (GARDEN ESCAPE) Logfia filaginoides (California filago) Lonicera subspicata var. denudata (Southern honeysuckle) Lupinus hirsutissimus (Stinging lupine) Lupinus longifolius (Bush lupine) Lupinus sparsiflorus (Coulter’s lupine) Lupinus truncatus (Collar lupine) Malacothrix saxatilis var. tenuifolia (Short-leaved cliff aster) Malosma laurina (Laurel sumac) *Malva parviflora (Cheeseweed) Marah macrocarpa (Wild cucumber) *Marrubium vulgare (Horehound) Meconella denticulata (Small-flowered meconella) *Medicago polymorpha (California bur-clover) Melica imperfecta (Coast range melic) Mentzelia laevicaulis (Giant blazing star) Mentzelia micrantha (Stickleaf) Mirabilis laevis var. crassifolia (Wishbone bush) Muilla maritima (Common muilla) Myriopteris covillei (Coville's lipfern) Nemophila menziesii var. integrifolia (Baby blue eyes) *Nerium oleander (Oleander) (GARDEN ESCAPE) *Nicotiana glauca (Tree tobacco) *Opuntia ficus-indica (Mission cactus) Osmorhiza brachypoda (Sweet cicely) *Oxalis pes-caprae (Bermuda buttercup) *Papaver orientale (Oriental poppy) (GARDEN ESCAPE) Pellaea andromedifolia (Coffee fern) Pellaea mucronata var. mucronata (Birds'-foot fern) *Peniocereus serpentinus (Snake cactus) (GARDEN ESCAPE) Penstemon centranthifolius (Scarlet bugler) Penstemon grinnellii var. grinnellii (Grinnell's penstemon) Penstemon spectabilis var. subviscosus (Glandular showy penstemon) Pentagramma triangularis ssp. triangularis (Goldback fern) Phacelia brachyloba (Yellow-throated phacelia) Phacelia cicutaria var. hispida (Caterpillar phacelia) Phacelia distans (Common phacelia) Phacelia grandiflora (Large-flowered phacelia) Phacelia imbricata (Mountain phacelia) (San Gabriel species are intergrades) Phacelia minor (Canterbury bells) Phacelia ramosissima (Branching phacelia) *Phoenix canariensis (Canary Island palm) (PLANTED?) Pholistoma auritum (Fiesta flower) Phoradendron leucarpum ssp. tomentosum (Oak mistletoe) *Plumbago auriculata (Cape plumbago) (GARDEN ESCAPE) Polypodium californicum (California polypody) Polystichum imbricans ssp. curtum (Cliff sword fern) Prunus ilicifolia ssp. ilicifolia (Hollyleaf cherry) Pseudognaphalium beneolens (Fragrant everlasting) Pseudognaphalium biolettii (Two-tone everlasting) Pseudognaphalium californicum (California everlasting) Pseudognaphalium microcephalum (Feltleaf everlasting) Pseudotsuga macrocarpa (Big-cone douglas fir) Pterostegia drymarioides (Threadstem) Quercus agrifolia var. agrifolia (Coast live oak) Quercus chrysolepis (Canyon live oak) Quercus durata var. gabrielensis (San Gabriel Mountains leather oak) Rafinesquia californica (California chicory) Rhamnus ilicifolia (Hollyleaf redberry) Rhus ovata (Sugar bush) Ribes californicum var. hesperium (Hillside gooseberry) Ribes malvaceum var. viridifolium (Chaparral currant) *Ricinus communis (Castor bean) *Rosmarinus officinalis (Rosemary) Rubus leucodermis (Western raspberry) Rubus ursinus (California blackberry) *Salsola tragus (Russian thistle) Saltugilia splendens ssp. grantii (Grant's woodland-gilia) Salvia apiana (White sage) Salvia clevelandii (Cleveland’s sage) (NOT NATIVE TO THIS AREA, PROBABLY GARDEN ESCAPE) Salvia columbariae (Chia) Salvia mellifera (Black sage) Sambucus nigra ssp. caerulea (Mexican elderberry) Selaginella bigelovii (Bigelow's spike-moss) Senecio flaccidus var. douglasii (Bush senecio) *Senecio vulgaris (Common groundsel) *Silene gallica (Windmill pink) Silene laciniata ssp laciniata (Mexican pink) Silene parishii (Parish's catchfly) *Sinapis arvensis (Charlock) (ONLY SEEN ONCE AND DOUBTFUL) *Sisymbrium altissimum (Tumble mustard) *Sisymbrium officinale (Hedge mustard) *Sisymbrium orientale (Oriental mustard) Solanum douglasii (White nightshade) Solanum xanti (Purple nightshade) Solidago velutina ssp. californica (California goldenrod) *Sonchus oleraceus (Sow thistle) *Spartium junceum (Spanish broom) *Stellaria media (Chickweed) Stephanomeria cichoriacea (Chicory-leaved stephanomeria) Stephanomeria virgata ssp. virgata (Twiggy wreathplant) Stipa coronata (Giant stipa) *Stipa miliacea var. miliacea (Smilo grass) Tauschia arguta (Southern tauschia) Thysanocarpus laciniatus (Lace-pod) *Torilis arvensis (Field hedge-parsley) Toxicodendron diversilobum (Western poison oak) *Trifolium hirtum (Rose clover) *Triticum aestivum (Common wheat) Turritis glabra (Tower mustard) Umbellularia californica (California bay) *Vinca major (Periwinkle) Woodwardia fimbriata (Giant chain fern) *Zantedeschia aethiopica (Calla lily) (PROBABLY PLANTED) By common name *African cornflag (Chasmanthe floribunda) Annual bedstraw (Galium aparine) Annual bur-sage (Ambrosia acanthicarpa) (NOT SEEN BUT ON TOM'S PLANT GUIDE) Arching rock-cress (Boechera arcuata) *Australian brass-buttons (Cotula australis) Baby blue eyes (Nemophila menziesii var. integrifolia) *Beggarticks, Common (Bidens pilosa var. pilosa) *Bermuda buttercup (Oxalis pes-caprae) *Bermuda grass (Cynodon dactylon) Bigberry manzanita (Arctostaphylos glauca) Big-cone douglas fir (Pseudotsuga macrocarpa) Bigelow’s spike-moss (Selaginella bigelovii) Bigleaf maple (Acer macrophyllum) Bigpod ceanothus (Ceanothus megacarpus var. megacarpus) Birchleaf mountain mahogany (Cercocarpus betuloides var. betuloides) Bird’s-foot fern (Pellaea mucronata var. mucronata) Bittercress (Cardamine oligosperma) Black sage (Salvia mellifera) Blue dicks (Dichelostemma capitatum ssp. capitatum) Blue wildrye (Elymus glaucus ssp. glaucus) Branching phacelia (Phacelia ramosissima) Bristly bird’s beak (Cordylanthus rigidus ssp. setiger) Brittle fern (Cystopteris fragilis) Broad-leaved lotus (Hosackia crassifolia var. crassifolia) *Bur-chervil (Anthriscus caucalis) Bush lupine (Lupinus longifolius) Bush monkeyflower (Diplacus aurantiacus) Bush senecio (Senecio flaccidus var. douglasii) California brickellbush (Brickellia californica) California aster (Corethrogyne filaginifolia) California bay (Umbellularia californica) California black walnut (Juglans californica) California blackberry (Rubus ursinus) California bur-clover (Medicago polymorpha) California chicory (Rafinesquia californica) California dodder (Cuscuta carnica var. californica) California everlasting (Pseudognaphalium californicum) California false-indigo (Amorpha californica var. californica) *California filago (Logfia filaginoides) California fuchsia (Epilobium canum ssp. latifolium) California goldenrod (Solidago velutina ssp. californica) California lace fern (Aspidotis californica) California liverwort (Asterella californica) California mustard (Caulanthus lasiophyllus) California polypody (Polypodium californicum) California poppy (Eschscholzia californica) California sagebrush (Artemisia californica) California sun cup (Eulobus californicus) California wild buckwheat (Eriogonum fasciculatum var. polifolium) (toward top of trail) *Calla lily (Zantedeschia aethiopica) (PLANTED OR GARDEN ESCAPE) *Canary Island palm (Phoenix canariensis) (PLANTED?) Canterbury bells (Phacelia minor) Canyon clarkia (Clarkia epilobioides) Canyon dodder (Cuscuta subinclusa) Canyon live oak (Quercus chrysolepis) Canyon sweet pea (Lathyrus vestitus var. vestitus) *Cape-ivy (Delairea odorata) *Cape plumbago (Plumbago auriculata) (GARDEN ESCAPE) *Castor bean (Ricinus communis) Caterpillar phacelia (Phacelia cicutaria var. hispida) Chamise (Adenostoma fasciculatum) Chaparral currant (Ribes malvaceum var. viridifolium) Chaparral whitethorn (Ceanothus leucodermis) Chaparral yucca (Hesperoyucca whipplei) *Charlock (Sinapis arvensis) (only seen once and doubtful ID) *Cheeseweed (Malva parviflora) Chia (Salvia columbariae) *Chickweed (Stellaria media) Chicory-leaved stephanomeria (Stephanomeria cichoriacea) Cleveland’s sage (Salvia clevelandii) Cliff sword fern (Polystichum imbricans ssp. curtum) Coastal lotus (Acmispon maritimus var. maritimus) Coastal wood fern (Dryopteris arguta) Coast live oak (Quercus agrifolia var. agrifolia) Coast range melic (Melica imperfecta) Cobweb thistle (Cirsium occidentale var. occidentale) Coffeeberry (Frangula californica ssp. californica) Coffee fern (Pellaea andromedifolia) Collar lupine (Lupinus truncatus) Common sunflower (Helianthus annuus) *Common wheat (Triticum aestivum) Cootamundra wattle  (*Acacia baileyana) Coulter’s lupine (Lupinus sparsiflorus) Coville’s lipfern (Myriopteris covillei) Creek monkeyflower (Erythranthe guttata) Davidson’s buckwheat (Eriogonum davidsonii) Davidson’s lotus (Acmispon nevadensis var. davidsonii) Deerbrush (Ceanothus integerrimus var. macrothyrsus) Deerweed, Common (Acmispon glaber var. glaber) Deerweed, Short-winged (Acmispon glaber var. brevialatus) Downy Chinese houses (Collinsia heterophylla var. austromontana) Elegant alumroot (Heuchera elegans) Elegant clarkia (Clarkia unguiculata) *English ivy (Hedera helix) Eucrypta, Common (Eucrypta chrysanthemifolia var. chrysanthemifolia) Fairy lantern (Calochortus albus) Farewell-to-spring (Clarkia bottae) Feltleaf everlasting (Pseudognaphalium microcephalum) Fiddleneck, Common (Amsinckia intermedia) *Field hedge-parsley (Torilis arvensis) Fiesta flower (Pholistoma auritum) Five-finger fern (Adiantum aleuticum) *Foxglove (Digitalis purpurea) *Foxtail barley (Hordeum murinum) Fragrant everlasting (Pseudognaphalium beneolens) Giant blazing star (Mentzelia laevicaulis) Giant chain fern (Woodwardia fimbriata) Giant stipa (Stipa coronata) Glandular showy penstemon (Penstemon spectabilis var. subviscosus) Globe gilia (Gilia capitata ssp. abrotanifolia) Goldback fern (Pentagramma triangularis ssp. triangularis) Golden yarrow (Eriophyllum confertiflorum var. confertiflorum) *Goldentop grass (Lamarckia aurea) Graceful bedstraw (Galium porrigens var. porrigens) Grant’s woodland-gilia (Saltugilia splendens ssp. grantii) Greenbark ceanothus (Ceanothus spinosus) (CONFIRM) Grinnell’s penstemon (Penstemon grinnellii var. grinnellii) *Groundsel, Common (Senecio vulgaris) Hairyleaf ceanothus (Ceanothus oliganthus var. oliganthus) Hawkweed (Hieracium argutum) Heartleaf penstemon (Keckiella cordifolia) *Hedge mustard (Sisymbrium officinale) Hillside gooseberry (Ribes californicum var. hesperium) Hoary fuchsia (Epilobium canum ssp. canum) Hoaryleaf ceanothus (Ceanothus crassifolius var. crassifolius) Hollyleaf cherry (Prunus ilicifolia ssp. ilicifolia) Hollyleaf redberry (Rhamnus ilicifolia) *Horehound (Marrubium vulgare) Humboldt lily (Lilium humboldtii ssp. ocellatum) Incense cedar (Calocedrus decurrens) Inland sticky cinquefoil (Drymocallis glandulosa var. glandulosa) *Intermediate wheat grass (Elymus hispidus) *Italian ryegrass (Festuca perennis) *Italian thistle (Carduus pycnocephalus ssp. pycnocephalus) *Jade (Crassula ovata) Jones’ cryptantha (Cryptantha muricata var. jonesii) Lace-pod (Thysanocarpus laciniatus) Lanceleaf dudleya (Dudleya lanceolata) Large-flowered cryptantha (Cryptantha intermedia var. intermedia) Large-flowered phacelia (Phacelia grandiflora) Laurel sumac (Malosma laurina) Leafy buckwheat (Eriogonum fasciculatum var. foliolosum) (toward bottom of trail) Leafy daisy (Erigeron foliosus var. foliosus) Liverworts (Asterella?) Longstem buckwheat (Eriogonum elongatum var. elongatum) Low canyon dudleya (Dudleya cymosa ssp. pumila) Martin’s paintbrush (Castilleja applegatei ssp. martinii) *Mexican aster (Cosmos bipinnatus) Mexican elderberry (Sambucus nigra ssp. caerulea) Mexican pink (Silene laciniata ssp laciniata) *Mexican poppy (Papaver orientale) (GARDEN ESCAPE) Milkmaids (Cardamine californica) *Mission cactus (Opuntia ficus-indica) Mountain phacelia (Phacelia imbricata) (San Gabriel species are intergrades) Mugwort (Artemisia douglasiana) Muilla, Common (Muilla maritima) Mulefat (Baccharis salicifolia ssp. salicifolia) Narrow-leaved bedstraw (Galium angustifolium ssp. angustifolium) *Nettleleaf goosefoot (Chenopodium murale) NO PICTURES, INAT RECORD Nevin's brickellbush (Brickellia nevinii) Oak mistletoe (Phoradendron leucarpum ssp. tomentosum) *Oleander (Nerium oleander) (GARDEN ESCAPE) *Oriental mustard (Sisymbrium orientale) *Oriental poppy (Papaver orientale) (GARDEN ESCAPE) Pacific madrone (Arbutus menziesii) Palmer's liverwort (Asterella palmeri) Parish’s catchfly (Silene parishii) Parish’s goldenbush (Ericameria parishii var. parishii) Parry’s collinsia (Collinsia parryi) *Periwinkle (Vinca major) *Petty spurge (Euphorbia peplus) Phacelia, Common (Phacelia distans) Pipestems (Clematis lasiantha) *Pitch trefoil (Bituminaria bituminosa) Pitseed goosefoot (Chenopodium berlandieri) (NEEDS CONFIRMING, collect seeds when available) Plummer's mariposa lily (Calochortus plummerae) Poodle-dog bush (Eriodictyon parryi) *Prickly lettuce (Lactuca serriola) Prickly phlox (Linanthus californicus) Prickly poppy (Argemone munita) NO PICTURES BUT INAT REPORT, TO BE EXPECTED Purple nightshade (Solanum xanti) *Red brome (Bromus madritensis ssp. rubens) Red-gland spurge (Euphorbia melanadenia) *Redstem filaree (Erodium cicutarium) Retrorse spearleaf mountain dandelion (Agoseris retrorsa) *Ripgut brome (Bromus diandrus) Rock goldenbush (Ericameria cuneata var. cuneata) *Rose clover (Trifolium hirtum) *Rosemary (Rosmarinus officinalis) Round-leaved boykinia (Boykinia rotundifolia) *Russian thistle (Salsola tragus) Sacapellote (Acourtia microcephala) San Bernardino sun cup (Camissoniopsis confusa) San Gabriel bedstraw (Galium grande) San Gabriel Mountains leather oak (Quercus durata var. gabrielensis) Sand cress (Calyptridium monandrum) Sawtooth goldenbush (Hazardia squarrosa var. grindelioides) Scarlet bugler (Penstemon centranthifolius) Scarlet larkspur (Delphinium cardinale) Scarlet monkeyflower (Erythranthe cardinalis) *Shepherd’s purse (Capsella bursa-pastoris) Short-leaved cliff aster (Malacothrix saxatilis var. tenuifolia) *Shortpod mustard (Hirschfeldia incana) Showy prickly-nut cryptantha (Cryptantha muricata var. muricata) *Slender wild oats (Avena barbata) Small-flowered meconella (Meconella denticulata) *Small horseweed (Erigeron bonariensis) *Smilo grass (Stipa miliacea var. miliacea) Smoothleaf yerba santa (Eriodictyon trichocalyx var. trichocalyx) *Snake cactus (Peniocereus serpentinus) (GARDEN ESCAPE) Soap plant (Chlorogalum pomeridianum var. pomeridianum) *Soft chess (Bromus hordaceus) (NOT SEEN, ON TOM'S PLANT GUIDE) Southern California morning glory (Calystegia macrostegia ssp. arida) Southern honeysuckle (Lonicera subspicata var. denudata) Southern miner’s lettuce (Claytonia perfoliata ssp. mexicana) Southern tauschia (Tauschia arguta) *Sow thistle (Sonchus oleraceus) *Spanish broom (Spartium junceum) Spreading larkspur (Delphinium patens ssp. hepaticoideum) Stickleaf (Mentzelia micrantha) Stinging lupine (Lupinus hirsutissimus) Strigose lotus (Acmispon strigosus) Sugarbush (Rhus ovata) Sunflower, Common (Helianthus annuus) (NOT SEEN, ON TOM’S LIST) *Sweet alyssum (Lobularia maritima) (GARDEN ESCAPE) Sweet cicely (Osmorhiza brachypoda) Tall horseweed (Erigeron canadensis) Tejon cryptantha (Cryptantha microstachys) *Thoroughwort (Ageratina adenophora) Threadstem (Pterostegia drymarioides) *Tocalote (Centaurea melitensis) Tower mustard (Turritis glabra) Toyon (Heteromeles arbutifolia) *Trailing lantana (Lantana montevidensis) Transverse Range manzanita (Arctostaphylos glandulosa ssp. mollis) *Tree tobacco (Nicotiana glauca) Tufted poppy (Eschscholzia caespitosa) *Tumble mustard (Sisymbrium altissimum) Twiggy wreathplant (Stephanomeria virgata ssp. virgata) Twining snapdragon (Antirrhinum kelloggii) Two-tone everlasting (Pseudognaphalium biolettii) Western poison oak (Toxicodendron diversilobum) Western raspberry (Rubus leucodermis) Western wallflower (Erysimum capitatum var. capitatum) Whispering bells (Emmenanthe penduliflora var. penduliflora) White alder (Alnus rhombifolia) White nightshade (Solanum douglasii) White pincushion (Chaenactis artemisiifolia) White sage (Salvia apiana) White tidy tips (Layia glandulosa) Whorl-leaf penstemon (Keckiella ternata var. ternata) Wild cucumber (Marah macrocarpa) Wild peppergrass (Lepidium virginicum ssp. menziesii) *Windmill pink (Silene gallica) Wishbone bush (Mirabilis laevis var. crassifolia) Woodland star (Lithophragma affine) Yarrow (Achillea millefolium) Yellow monkeyflower (Diplacus brevipes) Yellow pincushion (Chaenactis glabriuscula var. glabriuscula) Yellow-throated phacelia (Phacelia brachyloba) Three species seen on nearby Bailey Canyon Trail not yet seen on the Mt. Wilson Trail that might be expected to be there Eschscholzia caespitosa Hosackia crassifolia var. crassifolia Uropappus lindleyi Below is a list of vouchered specimens going back many years that Tom Chester compiled of species that may or may not have been correctly identified and may or may not have been seen on the trail itself or in nearby areas, and/or that might be expected to be seen. Acacia baileyana Acacia redolens Acanthoscyphus parishii var. parishii Acer macrophyllum Acmispon argophyllus var. argophyllus Acmispon glaber var. brevialatus Acmispon heermannii var. heermannii Acmispon maritimus Acmispon nevadensis var. davidsonii Adenostoma fasciculatum Aesculus californica Alnus rhombifolia Amorpha californica var. californica Anthriscus caucalis Antirrhinum multiflorum Aralia californica Arbutus menziesii Arctostaphylos glandulosa ssp. glandulosa Arctostaphylos glauca Artemisia californica Aspidotis californica Bituminaria bituminosa Boykinia rotundifolia Brickellia californica Brickellia nevinii Bromus ciliatus Bromus grandis Bromus porteri Bromus pseudolaevipes Calochortus albus Calystegia macrostegia ssp. arida Calystegia macrostegia ssp. intermedia Cardamine oligosperma Castilleja applegatei ssp. martinii Caulanthus heterophyllus Ceanothus crassifolius var. crassifolius Ceanothus cyaneus Ceanothus integerrimus var. macrothyrsus Ceanothus leucodermis Ceanothus megacarpus var. megacarpus Ceanothus oliganthus var. oliganthus Cercocarpus betuloides var. betuloides Cheilanthes covillei Clarkia bottae Clarkia epilobioides Clarkia unguiculata Claytonia perfoliata ssp. intermontana Collinsia heterophylla Cotoneaster pannosus Cryptantha intermedia var. intermedia Delphinium patens ssp. hepaticoideum Dichelostemma capitatum ssp. capitatum Drymocallis glandulosa var. glandulosa Dryopteris arguta Dudleya cymosa ssp. pumila Dudleya lanceolata Dysphania pumilio Ehrharta erecta Elymus condensatus Epilobium canum ssp. canum Epilobium ciliatum ssp. ciliatum Ericameria parishii var. parishii Erigeron foliosus var. foliosus Eriodictyon crassifolium var. crassifolium Eriodictyon crassifolium var. nigrescens Eriogonum elongatum var. elongatum Eriogonum fasciculatum var. foliolosum Eucalyptus polyanthemos Eucrypta chrysanthemifolia var. chrysanthemifolia Eulobus californicus Galium angustifolium ssp. angustifolium Galium californicum ssp. flaccidum Galium grande Hazardia squarrosa var. grindelioides Helianthemum scoparium var. vulgare Heteromeles arbutifolia Heterotheca grandiflora Heuchera elegans Juncus textilis Keckiella cordifolia Koeleria macrantha Lantana montevidensis Lathyrus vestitus var. vestitus Lepechinia fragrans Lepidium didymum Linanthus californicus Lithophragma affine Lithophragma bolanderi Lobularia maritima Lolium perenne ssp. multiflorum Lonicera subspicata var. denudata Lupinus longifolius Lupinus truncatus Malosma laurina Melica imperfecta Mentzelia micrantha Mimulus aurantiacus Muhlenbergia microsperma Nemophila menziesii var. menziesii Nicotiana glauca Osmorhiza brachypoda Paeonia californica Pellaea andromedifolia Penstemon centranthifolius Penstemon heterophyllus var. australis Penstemon spectabilis var. subviscosus Persicaria hydropiperoides Phacelia cicutaria var. hispida Phacelia grandiflora Phacelia minor Phacelia ramosissima Phoenix canariensis Poa secunda ssp. secunda Polycarpon tetraphyllum var. tetraphyllum Polygala cornuta var. fishiae Polypodium californicum Prunus ilicifolia ssp. ilicifolia Pseudognaphalium californicum Pseudognaphalium microcephalum Pseudotsuga macrocarpa Quercus agrifolia var. agrifolia Quercus chrysolepis Quercus dumosa Quercus durata var. gabrielensis Quercus durata var. gabrielensis X Q. engelmannii Quercus engelmannii Quercus wislizeni var. frutescens Rafinesquia californica Rhamnus ilicifolia Rhus ovata Ribes amarum Ribes californicum var. hesperium Ribes malvaceum var. viridifolium Ribes roezlii var. roezlii Ricinus communis Rupertia physodes Salvia mellifera Sambucus nigra ssp. caerulea Selaginella bigelovii Senecio astephanus Senecio flaccidus var. douglasii Silene gallica Silene laciniata ssp. laciniata Solanum douglasii Solanum umbelliferum Solidago confinis Stachys albens Stachys bullata Stephanomeria cichoriacea Stipa coronata Stipa lepida Stipa miliacea var. miliacea Symphoricarpos mollis Tauschia arguta Toxicodendron diversilobum Trifolium hirtum Trifolium microcephalum Umbellularia californica Vitis girdiana