The numbers of vascular plant taxa collected on the reservation include about:

Families . . . . . . . . . . . . . . . . . 76
Genera . . . . . . . . . . . . . . . . . . 325
Native species . . . . . . . . . . . . . 428
Introduced species . . . . . . . . . . . 139
Inter-generic hybrids . . . . . . . . . . . 4
Inter-specific hybrids . . . . . . . . . . 8

Important and diverse families include:

Asteraceae 50 genera 84 species
Poaceae 30 genera 74 species

Important and diverse genera include:

Trifolium 14 species Cryptantha 8 species
Mimulus 12 species Plagiobothrys 8 species
Bromus 10 species Gnaphalium 8 species
Lupinus 10 species

Over the landscape as a whole the six Quercus oak tree species are the most conspicuous plants. Adenostoma fasciculatum shrubs dominate chaparral habitats. Avena and Bromus grasses dominate the grassland, although often with a rich mixture of dominant forbs. One plant that has a great influence on how people use the reservation is the shrubby / viny Toxicodendron diversilobum, poison-oak!

List of Plants Known at Hastings

*Bold Highlight Indicates Revisions in Jepson Manual, Hickman (1993).
   Hickman, J. (ed). 1993. The Jepson Manual: Higher Plants of California. UC Press, Berkeley, CA 1400 pp.
  You can copy the scientific name of the plant from the plant list here into the NatureServe search page and obtain other information on state, federal status, images, distribution, ecology, and literature for each species.

Abutilon theophrasti

Acer macrophyllum

Achillea borealis (see Achillea millefolium)

Achillea millefolium

Achnatherum*(see below) coronatum

Achyrachaena mollis

Adenostoma fasciculatum

Adiantum jordanii

Aesculus californica

Agoseris grandiflora

Agoseris heterophylla

Agoseris retrosa

Agropyron desertorum

Agropyron parishii

(see Elymus stebbinsii)

Agrostis exarata

Agrostis semiverticillata

(see Agrostis viridis)

Agrostis viridis

Aira caryophyllea

Alchemilla occidentalis

(see Aphanes occidentalis)

Allium crispum

Allium peninsulare (see Allium crispum)

Allocarya bracteatus (see Plagiobothrys)

Allophyllum gilioides

Alnus rhombifolia

Amaranthus albus

Amaranthus blitoides

Amaranthus retroflexus

Amsinckia intermedia (see Amsinckia menziesii)

Amsinckia menziesii var. intermedia

Amsinckia menziesii var. menziesii

Amsinckia retrorsa (see A. menziesii)

Anagallis arvensis

Anagallis linifolia

Androsace elongata

Anthemis cotula

Antirrhinum hookerianum (see Antirrhinum

kelloggii )

Antirrhinum kelloggii

Antirrhinum multiflorum

Anthriscus caucalis

Anthriscus scandicina

(see Anthriscus caucalis)

Aphanes occidentalis

Apiastrum angustifolium

Aquilegia formosa

Arabis glabra

Aralia californica

Arbutus menziesii

Arctostaphylos glandulosa

forma glandulosa

forma cushingiana

Arctostaphylos glandulosa

forma glandulosa

Arctostaphylos glauca var puberula

Arctostaphylos tomentosa

Arenaria californica

(see Minuartia californica)

Arenaria douglasii

(see Minuartia douglasii)

Arenaria pusilla

(see Minuartia pusilla)

Artemisia californica

Artemisia douglasiana

Artemisia dracunculus

Asclepias eriocarpa

Asclepias fascicularis

Asparagus officinalis

Aspidotis californica

Aster chilensis

Aster radulinus

Astragalus douglasii

Astragalus gambelianus

Athysanus pusillus

Avena barbata

Avena fatua

Avena sativa

Azolla filiculoides

Baccharis douglasii

Baccharis glutinosa

(see Baccharis salicifolia)

Baccharis pilularis

Baccharis salicifolia

Baccharis viminea (see Baccharis glutinosa)

Baeria (see Lasthenia)

Barbarea americana (see Barbarea orthoceras)

Barbarea orthoceras

Berberis pinnata

Berula erecta

Bloomeria crocea

Boisduvalia densiflora

(see Epilobium densiflorum)

Bowlesia incana

Brassica campestris

(see Brassica rapa)

Brassica geniculata

(see Hirschfeldia incana)

Brassica kaber

(see Sinapis arvensis)

Brassica nigra

Brassica rapa

Brickellia californica

Briza maxima

Briza minor

Brodiaea ixioides (see Triteleia)

Brodiaea jolonensis

Brodiaea lutea (see Triteleia ixioides)

Brodiaea pulchella

(see Dichelostemma capitatum)

Bromus arenarius

Bromus carinatus

Bromus diandrus

Bromus grandis

Bromus hordeaceus

Bromus grandis x B laevipes

Bromus laevipes

Bromus madritensis ssp. rubens

Bromus mollis

(see Bromus hordeaceus)

Bromus pseudolaevipes

Bromus rigidus (see Bromus diandrus)

Bromus rubens

(see Bromus madritensis ssp. rubens)

Bromus tectorum

Calamagrostis rubescens

Calandrinia breweri

Calandrinia ciliata

Callitriche marginata

Calochortus albus

Calochortus luteus

Calochortus splendens

Calycadenia truncata

Calyptridium monandrum

Calystegia malacophylla

Calystegia subacaulis

Camissonia campestris

Camissonia contorta

Camissonia graciliflora

Camissonia hirtella

Camissonia ignota

Camissonia intermedia

Camissonia luciae

Camissonia micrantha

Capsella bursa-pastoris

Cardamine californica

Cardamine oligosperma

Cardaria draba

Carex alma

Carex barbarae

Carex bolanderi

Carex deweyana

Carex globosa

Carex leptopoda

(see Carex deweyana ssp. leptopoda)

Carex serratodens

Castilleja affinis

Castilleja attenuata

Castilleja densiflora

Castilleja douglasii (see Castilleja affinis)

Castilleja exserta

Castilleja foliolosa

Catapodium rigidum

(see Desmazeria rigida)

Caucalis microcarpa

(see Yabea microcarpa)

Ceanothus cuneatus

Ceanothus oliganthus

Ceanothus papillosus

Ceanothus ramulosus (see cuneatus)

Ceanothus sorediatus

(see Ceanothus oliganthus ssp. sorediatus)

Centaurium davyi

Centaurea melitensis

Centaurea solstitialis

Cerastium glomeratum

Cercocarpus betuloides

Chaenactis glabriuscula

Chaetopappa (see Pentachaeta)

Chamaesyce maculata

Chamaesyce serpyllifolia

Chamomilla suaveolens

Chenopodium album

Chenopodium ambrosioides

Chenopodium berlandieri

Chenopodium californicum

Chenopodium murale

Chlorogalum pomeridianum

Chorizanthe coriacea

(see Lastarriaea coriacea)

Chorizanthe douglasii

Chorizanthe membranacea

Chorizanthe staticoides

Chrysanthemum parthenium

(see Tanacetum parthenium)

Chrysopsis villosa

(see Heterotheca sessiliflora ssp. echinoides)

Cirsium coulteri (see C. occidentale var. ven.)

Cirsium occidentale var. venustum

Cirsium proteanum (see C. occidentale var. ven.)

Cirsium quercetorum

Cirsium vulgare

Clarkia affinis

Clarkia bottae (see Clarkia lewisii)

Clarkia elegans (see Clarkia unguiculata)

Clarkia lewisii

Clarkia purpurea

Clarkia similis

Clarkia unguiculata

Claytonia exigua

Claytonia perfoliata

Clematis lasiantha

Clematis ligusticifolia

Collinsia bartsiifolia

Collinsia childii

Collinsia heterophylla

Collinsia solitaraia (see Collinsia sparsiflora)

Collinsia sparsiflora

Collomia grandiflora

Conium maculatum

Consultus nocopeilistus

Convolvulus arvensis

Convolvulus malacophylla (see Calystegia)

Convolvulus subacaulis (see Calystegia)

Conyza bonariensis

Conyza canadensis

Cordylanthus rigidus

Corethrogyne filaginifolia

(see Lessingia filaginifolia)

Cornus californicus (see C. occidentalis)

Cornus occidentalis

(see Cornus sericea ssp. occidentalis)

Cornus sericea

Crassula aquatica

Crassula connata

Crassula erecta

(see Crassula connata)

Cryptantha clevelandii

Cryptantha decipiens

Cryptantha flaccida

Cryptantha micromeres

Cryptantha microstachys

Cryptantha muricata

Cryptantha nevadensis

Cryptantha rattanii

(see Cryptantha decipiens)

Cryptantha sparsiflora

(see Cryptantha flaccida)

Cupressus macrocarpa

Cuscuta californica

Cuscuta subinclusa

Cuscuta ceanothi

(see Cuscuta subinclusa)

Cynodon dactylon

Cynoglossum grande

Cynosurus echinatus

Cyperus eragrostis

Cystopteris fragilis

Cytisus monspessulanus

(see Genista monspessulana)

Dactylis glomerata

Datisca glomerata

Datura meteloides

(see Datura wrightii)

Datura stramonium

Datura wrightii

Daucus pusillus

Delphinium californicum

Delphinium decorum (see Delphinium patens)

Delphinium parryi

Delphinium patens

Dentaria californica

(see Cardamine californica var. integrifolia)

Dentaria integrifolia

(see Cardamine californica var. integrifolia)

Deschampsia danthonioides

Deschampsia elongata

Descurainia pinnata

Descurainia sophia

Desmazeria rigida

Dichelostemma capitatum

Dichelostemma pulchella

(see Dichelostemma capitatum)

Diplacus (see Mimulus)

Distichlis spicata

Dodecatheon clevelandii

Draba sophia

Draba verna

Dudleya cymosa

(see Dudleya lanceolata)

Dudleya lanceolata

Dryopteris arguta

Echeveria (see Dudleya)

Echidiocarya ca (see Plagiobothrys)

Echinochloa crus-galli

Eleocharis macrostachya

Elymus condensatus

(see Leymus condensatus)

Elymus glaucus

Elymus glaucus x Sitanion jubatum

(see Elymus glaucus x Elymus multisetus)

Elymus multisetus

Elymus stebbinsii

Elymus triticoides

(see Leymus triticoides)

Elymus triticoides x Elymus condensatus

(see Leymus triticoides x Leymus condensatus)

Emmenanthe penduliflora

Epilobium brachycarpum

Epilobium canum

Epilobium ciliatum

Epilobium densiflorum

Epilobium paniculatum

(see Epilobium brachycarpum)

Epilobium watsonii

(see Epilobium ciliatum spp. watsonii)

Equisetum hyemale

Equisetum laevigatum

Equisetum telmateia

Ericameria arborescens

Eremocarpus setigerus

Eriastrum densifolium

Eriastrum virgatum

Erigeron ( see Conyza bonariensis) l

Erigeron canadensis (see Conyza canadensis)

Erigeron foliosus

Erigeron philadelphicus

Eriodictyon californicum

Eriodictyon tomentosum

Eriogonum angulosum

Eriogonum elegans

Eriogonum elongatum

Eriogonum fasciculatum

Eriogonum gracile

Eriogonum nortonii

Eriogonum nudum

Eriophyllum confertiflorum

Erodium botrys

Erodium brachycarpum

Erodium cicutarium

Erodium macrophyllum

Erodium moschatum

Erysimum capitatum

Eschscholzia caespitosa

Eschscholzia californica

Euphorbia crenulata

Euphorbia peplus

Euphorbia serpyllifolia

(see Chamaesyce serpyllifolia ssp. hirtula)

Euphorbia spathulata

Euphorbia supina

(see Chamaesyce maculata)

Evax sparsiflora

(see Hesperevax sparsiflora)

Festuca arundinacea

Festuca elmeri

Festuca idahoensis

Filago californica

Filago gallica

Foeniculum vulgare

Fritillaria affinis

Fritillaria lanceolata

(see Fritillaria affinis)

Galium angustifolium

Galium aparine

Galium californicum

Galium murale

Galium nuttallii (see porrigens)

Galium parisiense

Galium porrigens

Garrya flavescens

Gastridium ventricosum

Genista monspessulana

Geranium dissectum

Geranium molle

Gilia achilleifolia

Gilia clivorum

Gilia gilioides (see Allophyllum gilioides)

Gilia multicaulis (see Gilia clivorum)

Gilia tenuiflora

Githopsis diffusa

Githopsis specularioides

Gnaphalium beneolens

(see Gnaphalium canescens ssp. beneolens)

Gnaphalium californicum

Gnaphalium canescens

Gnaphalium chilense

(see Gnaphalium stramineum)

Gnaphalium luteo-album

Gnaphalium microcephalum

(Gnaphalium canescens ssp. microcephalum)

Gnaphalium palustre

Gnaphalium purpureum

Gnaphalium ramosissimum

Gnaphalium stramineum

Godetia cylindrica (see Clarkia lewisii)

Godetia epilobioides (see Clarkia similis)

Godetia quadrivulnera (see Clarkia purpurea)

Grossularia amarum

(see Ribes amarum)

Grossularia californicum

(see Ribes californicum)

Grossularia divaricatum

(see Ribes divaricatum)

Grossularia menziesii

(see Ribes menziesii)

Grossularia sericeum

(see Ribes sericeum)

Grossularia speciosum

(see Ribes speciosum)

Guillenia lasiophylla

Habenaria elegans

(see Piperia elegans)

Haplopappus arborescens

(see Ericameria arborescens)

Hazardia squarrosa

Helenium puberulum

Helianthemum scoparium var vulgare

Heliotropium curassavicum

Hemizonia corymbosa

Hemizonia lobbii

Hesperomecon linearis

(see Meconella linearis)

Heteromeles arbutifolia

Hesperevax sparsiflora.

Heterotheca sessiliflora

Hieracium argutum

Hirschfeldia incana

Hoita macrostachya

Hoita orbicularis

Holcus lanatus

Holodiscus discolor

Hordeum brachyantherum

Hordeum californicum

(see Hordeum brachyantherum ssp.californicum)

Hordeum geniculatum

(see Hordeum marinum ssp. gussoneanum)

Hordeum glaucum

(see Hordeum murinum ssp. glaucum)

Hordeum hystrix (see Hordeum geniculatum)

Hordeum leporinum

(see Hordeum murinum ssp. leporinum)

Hordeum marinum

Hordeum murinum

Hordeum stebbinsii (see H. glaucum)

Hordeum vulgare

Hypochaeris glabra

Hypochaeris radicata

Juglans californica

Juglans hindsii

(see Juglans californica var. hindsii)

Juglans regia

Juncus balticus

Juncus bufonius

Juncus effusus

Juncus mexicanus

Juncus occidentalis

Juncus patens

Juncus rugulosus

Juncus tenuis

(see Juncus occidentalis)

Juncus xiphioides

Keckiella breviflora

Keckiella centranthifolius

(see Penstemon centranthifolius)

Koeleria macrantha

Lactuca serriola

Lagophylla ramosissima

Lamarkia aurea

Lamium amplexicaule

Lastarriaea coriacea

Lasthenia californica

Lathyrus jepsonii

Lathyrus vestitus

Layia hieracioides

Layia paniculata

(see Layia hieracioides)

Layia platyglossa

Lazula comosa

Lemna minor

Lepidium draba (see Cardaria draba)

Lepidium nitidum

Lepidium perfoliatum

Lepidium pinnatifidum

Lepidium strictum

Lessingia filaginifolia

Lessingia gemanorum (see glandulifera)

Lessingia glandulifera

Leymus condensatus

Leymus triticoides

Linanthus androsaceus

Linanthus bicolor

Linanthus bigelovii

Linanthus ciliatus

Linanthus dichotomus

Linanthus parviflorus

Linanthus pygmaeus ssp continentalis

Linaria canadensis

Lithophragma affine

Lithophragma heterophylla

Loeflingia squarrosa

Lolium multiflorum

Lolium perenne

Lolium temulentum

Lomatium dasycarpum

Lomatium utriculatum

Lonicera interrupta

Lonicera subspicata

Lotus grandiflorus

Lotus humistratus

Lotus micranthus

Lotus purshianus

Lotus scoparius

Lotus strigosus

Lotus subpinnatus

(see Lotus wrangelianus)

Lotus wrangelianus

Lupinus arboreus

Lupinus bicolor

Lupinus concinnus

Lupinus densiflora

(see Lupinus microcarpus var. densiflorus)

Lupinus formosus

Lupinus hirsutissimus

Lupinus microcarpus

Lupinus nanus

Lupinus succulentus

Lupinus truncatus

Luzula comosa

Luzula multiflorum (see Luzula subsessilis)

Luzula subsessilis

(see Luzula comosa )

Lythrum hyssopifolium

Madia elegans

Madia exigua

Madia gracilis

Madia madioides

Madia sativa

Mahonia pinnata

(see Berberis pinnata)

Malacothrix clevelandii

Malacothrix floccifera

Malva parviflora

Marah fabaceus

Marrubium vulgare

Matricaria matricariodes

(see Chamomilla suaveolens)

Meconella denticulata

Meconella linearis

Medicago hispida (see polymorpha)

Medicago polymorpha

Medicago sativa

Melica californica

Melica imperfecta

Melilotus albus

Melilotus indica

Mentha spicata

Mentzelia micrantha

Mentzelia veatchiana

Micropus californicus

Micropus californicus x Psilocarphus tenellus

(hybrid)

Microseris aphantocarpha (see M. douglasii)

Microseris douglasii

Microseris heterocarpa

(see Stebbinsoseris heterocarpa).

Microseris linearifolia (see M. lindleyi)

Microseris lindleyi

(see Uropappus lindleyi)

Microsteris gracilis

(see Phlox gracilis)

Mimulus androsaceus

Mimulus aurantiacus

Mimulus bifidus ssp fasciculatus

(see Mimulus aurantiacus)

Mimulus bolanderi

Mimulus cardinalis

Mimulus congdonii

Mimulus douglasii

Mimulus floribundus

Mimulus fremontii

Mimulus guttatus

Mimulus nasutus

(see Mimulus guttatus)

Mimulus rattanii

Mimulus subsecundus

(see Mimulus fremontii)

Monardella villosa

Monolopia major

Montia fontana

Montia hallii (see Montia fontana)

Montia perfoliata (see Claytonia perfoliata)

Muhlenbergia rigens

Minuartia californica

Minuartia douglasii

Minuartia pusilla

Nassella cernua

Nassella formicarum

Nassella lepida

Nassella pulchra

Navarretia atractyloides

Navarretia jaredii

Navarretia mellita

Navarretia mitricarpa

(see Navarretia jaredii)

Nemacladus longiflorus

Nemophila menziesii

Nemophila parviflora

Nemophila pedunculata

Nemophila pulchella

Nicotiana bigelovii

(see Nicotiana quadrivalvis)

Nicotiana glauca

Nicotiana quadrivalvis

Oemleria cerasiformis

Oenothera dentata var. campestris

(see Camissonia campestris)

Oenothera contorta

(see Camissonia contorta)

Oenothera elata

Oenothera fruticetorum

(see Camissonia intermedia)

Oenothera gracilifora

(see Camissonia graciliflora)

Oenothera micrantha var. ignota

(see Camissonia ignota)

Oenothera micrantha var. jonesii

(see Camissonia hirtella)

Oenothera micrantha var. micrantha

(see Camissonia micrantha)

Orobanche bulbosa

Orobanche californica

Orobanche fasciculata

Orobanche grayana (see O. vallicola)

Orobanche pinorum

Orobanche uniflora

Orobanche vallicola

Orthocarpus attenuatus

(see Castelleja attenuata)

Orthocarpus densiflorus

(see Castilleja densiflora

Orthocarpus purpurascens

(see Castilleja exserta)

Orthocarpus pusillus

(see Triphysaria pusilla)

Osmaronia cerasiformis

(see Oemleria cerasiformis)

Osmorhiza brachypoda

Osmorhiza chilensis

Oxalis laxa

Panicum miliaceum

Papaver californicum

Papaver somniferum

Paspalum dilatatum

Pectocarya penicillata

Pectocarya pusilla

Pectocarya setosa

Pedicularis densiflora

Pellaea andromedifolia

Pellaea mucronata

Penstemon breviflora

(see Keckiella breviflora)

Penstemon centranthifolius

(was Keckiella c., back to Penstemon c.)

Penstemon heterophyllus

Pentachaeta alsinoides

Pentachaeta exilis ssp. exilis

Pentagramma triangularis

Phacelia brachyloba

Phacelia ciliata

Phacelia distans

Phacelia douglasii

Phacelia imbricata

Phacelia malvifolia

Phacelia ramosissima

Phalaris aquatica

Phalaris canariensis

Phalaris minor

Phalaris paradoxa

Phalaris tuberosa

(see Phalaris aquatica)

Phlox gracilis

Pholistoma auritum

Pholistoma membranaceum

Phoradendron villosum

Photinia arbutifolia (see Heteromeles arbutifolia)

Pinus coulteri

Pinus ponderosa

Pinus radiata

Piperia elegans

Pisum sativa

Pityrogramma triangularis

(see Pentagramma triangularis)

Plagiobothrys bracteatus

Plagiobothrys californicus

(see Plagiobothrys collinus var. californicus)

Plagiobothrys collinus

Plagiobothrys collinus var. californicus

Plagiobothrys canescens

Plagiobothrys nothofulvus

Plagiobothrys reticulatus

Plagiobothrys tenellus

Plagiobothrys trachycarpus

Plagiobothrys uncinatus

Plantago erecta

Plantago indica

Plantago insularis

(see Plantago ovata)

Plantago lanceolata

Plantago major

Plantago ovata

Platanus racemosa

Platystemon californicus

Plectritus ciliosa

Plectritus congesta

Plectritus macrocera

Poa annua

Poa bulbosa

Poa howellii

Poa pratensis

Poa secunda

Poa scabrella

(see Poa secunda)

Pogogyne serpylloides

Polycarpon depressum

Polygonum arenastrum

Polygonum aviculare

(see Polygonum arenastrum)

Polypodium californicum

Polypogon australis

Polypogon interruptus

(see Polypogon australis)

Polypogon monspeliensis

Polypogon semiverticillatus

(see Agrostis)

Polystichum imbricans

Polystichum munitum (see P. imbricans)

Populus balsamifera ssp. trichocarpa

Populus trichocarpa

(see Populus balsamifera ssp. trichocarpa)

Portulaca oleracea

Potentilla glandulosa

Prunus demissa (see Prunus virginiana)

Prunus ilicifolia

Prunus virginiana

Psilocarphus tenellus

Psoralea macrostachya

(see Hoita macrostachya)

Psoralea orbicularis

(see Hoita orbicularis)

Psoralea physodes

(see Rupertia physodes)

Pteridium aquilinum

Pterostegia drymarioides

Quercus agrifolia

Quercus X alvordiana

Quercus X chasei

Quercus chrysolepis

Quercus douglasii

Quercus john-tuckeri

Quercus X jolonensis

Quercus kelloggii

Quercus lobata

Quercus X munzii

Quercus turbinella

(see Quercus john-tuckeri)

Quercus wislizenii

Rafinesquia californica

Ranunculus californicus

Ranunculus hebecarpus

Raphanus sativus

Rhamnus californica

(see Rhamnus tomentella)

Rhamnus crocea

(see Rhamnus ilicifolia)

Rhamnus ilicifolia

Rhamnus tomentella

Rhus (see Toxicodendron)

Ribes amarum

Ribes aureum

Ribes californica

Ribes divaricatum

Ribes malvaceum

Ribes menziesii

Ribes sericium

Ribes speciosum

Rigiopappus leptocladus

Robinia pseudoacacia

Romneya coulteri

Rorippa nasturtium-aquaticum

Rosa californica

Rosa gymnocarpa

Rubus ursinus

Rumex acetosella

Rumex conglomeratus

Rumex crispus

Rumex pulcher

Rumex salicifolius

Rupertia physodes

Sagina apetala

Sagina decumbens

Sagina decumbens ssp. occidentalis

Sagina occidentalis

(see Sagina decumbens ssp. occidentalis)

Salix exigua

Salix hindsiana

(see Salix exigua)

Salix laevigata

Salix lasiolepis

Salvia columbariae

Salvia leucophylla

Salvia mellifera

Sambucus cerulea (see Sambucus mexicana)

Sambucus mexicana

Sanguisorba minor

Sanicula bipinnata

Sanicula bipinnatifida

Sanicula crassicaulis

Sanicula tuberosa

Satureja chamissonis (see S. douglasii)

Satureja douglasii

Satureja mimuloides

Saxifraga californica

Schismus barbatus

Scirpus cernuus

Scirpus microcarpus

Scleropoa rigida (see Desmazeria rigida)

Scutellaria tuberosa

Scrophularia californica

Selaginella bigelovii

Senecio breweri

Senecio vulgaris

Silene antirrhina

Silene gallica

Silene multinervia

Silene verecunda

Silybum marianum

Sinapis arvensis

Sisymbrium altissimum

Sisymbrium officinale

Sisyrinchium bellum

Sitanion jubatum

(see Elymus multisetus)

Smilacina stellata

Solanum americanum

Solanum nodiflorum (see S. americanum)

Solanum sarrachoides

Solanum umbelliferum

Solidago californica

Soliva sessilis

Sonchus asper

Sonchus oleraceus

Specularia (see Triodanis)

Spergularia bocconii

Spergularia rubra

Stachys bullata

Stachys pycnantha

Stebbinsoseris heterocarpa

Stellaria media

Stellaria nitans

Stephanomeria virgata

Stipa cernua

(see Nassella cernua)

Stipa coronata

(see Achnatherum coronatum)

Stipa lepida

(see Nassella lepida)

Stipa pulchra

(see Nassella pulchra)

Streptanthus glandulosa

Stylocline gnaphaloides

Stylomecon heterophylla

Symphoricarpos albus)

Symphoricarpos mollis

Symphoricarpos rivularis

(see Symphoricarpos albus)

Tanacetum parthenium

Taraxacum officinale

Tauschia hartwegii

Thalictrum polycarpum

Thelypodium lasiophyllum

(see Guillenia lasiophylla)

Thermopsis macrophylla

Thysanocarpus curvipes

Thysanocarpus laciniatus

Tillaea (see Crassula)

Tribulus terrestris

Torilis nodosa

Toxicodendron diversilobum

Trichostema lanatum

Trichostema lanceolatum

Trifolium albopurpureum

Trifolium amplectens

(see Trifolium depauperatum)

Trifolium barbigerum

Trifolium bifidum

Trifolium ciliolatum

Trifolium depauperatum

Trifolium dubium

Trifolium gracilentum

Trifolium hirtum

Trifolium microcephalum

Trifolium microdon

Trifolium obtusiflorum

Trifolium oliganthum

Trifolium tridentatum

(see Trifolium willdenovii)

Trifolium variegatum

Trifolium willdenovii

Trifolium wormskioldii

Triodanis biflora

Trisetum canescens

Triticum aestivum

Triteleia ixioides (Brodiaea lutea)

Triteleia laxa

Triphysaria pusilla

Tropidocarpum gracile

Typha angustifolia

Typha latifolia

Umbellularia californica

Uropappus lindleyi

Urtica holosericea

Urtica urens

Verbena lasiostachys

Veronica anagallis-aquatica

(see Veronica catenata)

Veronica catenata

Veronica peregrina

Veronica persica

Vicia americana

Vicia angustifolia

(see Vicia sativa ssp. nigra)

Vicia dasycarpa

(see Vicia villosa ssp. varia)

Vicia exigua

(see Vicia hassei)

Vicia hassei

Vicia sativa

Vicia sativa ssp. nigra

Vicia villosa

Vicia villosa ssp. varia

Viola pedunculata

Viola purpurea

Viola quercetorum

(see Viola purpurea ssp. quercetorum)

Vulpia bromoides

(was Festuca dertonensis)

Vulpia microstachys complex

var. microstachys

var. ciliata

var. confusa

var. pauciflora

Vulpia myuros

var. hirsuta (was Festuca megalura)

var. myuros (was Festuca myuros)

Vulpia octoflora (Festuca octoflora)

Woodwardia fimbriata

Wyethia helenioides

Xanthium spinosum

Yabea microcarpa

Yucca whipplei

Zauschneria californica

(see Epilobium canum)