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Criteria:   found in Trinity County  •   is not native  •  group by lifeform
361  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual177 plants
Abutilon theophrasti Velvet leaf Annual herb  
Aegilops neglecta Three-awned goat grass Annual grass  
Aegilops triuncialis ! Goatgrass Annual grass  
Agrostis hyemalis Winter bentgrass Annual grass 4
Aira caryophyllea Silvery hairgrass Annual grass  
Amaranthus albus Tumbleweed Annual herb  
Anthemis arvensis Corn chamomile Annual herb  
Anthemis cotula Dog fennel Annual herb  
Anthoxanthum odoratum ! Sweet vernal grass Annual, Perennial grass 3
Anthriscus caucalis Bur chevril Annual herb, Vine  
Arabidopsis thaliana Arabidopsis Annual herb  
Arenaria serpyllifolia Thymeleaf sandwort Annual herb  
Arenaria serpyllifolia ssp. serpyllifolia Thyme leaf sandwort Annual herb  
Arenaria serpyllifolia var. serpyllifolia Thymeleaf sandwort Annual herb  
Avena barbata ! Slim oat Annual grass  
Avena fatua ! Wildoats Annual grass 2
Avena sativa Wild oat Annual, Perennial grass 7
Brassica juncea India mustard Annual herb  
Brassica nigra ! Black mustard Annual herb  
Brassica rapa ! Common mustard Annual herb  
Brassica rapa var. rapa Turnip Annual herb  
Briza maxima ! Rattlesnake grass Annual grass 3
Briza minor Little rattlesnake grass Annual grass  
Bromus catharticus Rescue grass Annual, Perennial grass  
Bromus commutatus Hairy chess, meadow brome Annual grass  
Bromus diandrus ! Ripgut brome Annual grass  
Bromus hordeaceus ! Soft chess Annual grass 4
Bromus japonicus ! Hairy chess Annual grass  
Bromus madritensis Foxtail chess, foxtail brome Annual grass  
Bromus madritensis ssp. madritensis Foxtail chess Annual grass  
Bromus madritensis ssp. rubens ! Foxtail brome Annual grass 2
Bromus racemosus Smooth brome Annual grass  
Bromus rubens ! Red brome Annual grass 2
Bromus sterilis Sterile brome Annual grass  
Bromus tectorum ! Downy chess Annual grass  
Capsella bursa-pastoris Shepherd's purse Annual herb 1
Cardamine hirsuta Hairy bitter cress Annual herb  
Carduus pycnocephalus ! Italian thistle Annual herb  
Carduus pycnocephalus ssp. pycnocephalus Italian thistle Annual herb  
Carduus tenuiflorus ! Slender flowered thistle Annual herb  
Centaurea cyanus Bachelor's button Annual herb 7
Centaurea melitensis ! Tocalote Annual herb  
Centaurea solstitialis ! Yellow starthistle Annual herb  
Centaurium tenuiflorum Slender centaury Annual herb 1
Centranthus ruber Jupiter's beard Annual, Perennial herb 6
Cerastium glomeratum Large mouse ears Annual herb  
Chamaesyce maculata Spotted spurge Annual herb  
Chamaesyce nutans Large spurge Annual herb  
Chenopodium album Lambs quarters Annual herb  
Chenopodium ambrosioides Mexican tea Annual, Perennial herb 3
Chenopodium ambrosioides var. suffruticosum Wormseed Annual, Perennial herb  
Chenopodium botrys Jerusalem oak goosefoot Annual herb  
Crepis capillaris Smooth hawksbeard Annual, Perennial herb  
Crucianella angustifolia Narrow leafed crucianella Annual herb  
Crypsis schoenoides Swamp grass Annual grass  
Cynosurus echinatus ! Dogtail grass Annual grass  
Datura stramonium Jimson weed Annual herb 2
Descurainia sophia ! Herb sophia Annual herb  
Dianthus armeria Deptford pink Annual, Biennial herb  
Dianthus armeria ssp. armeria Grass pink Annual, Biennial herb  
Dittrichia graveolens ! Stinkwort Annual herb  
Draba verna Whitlow grass Annual herb  
Dysphania ambrosioides Mexican tea Annual, Perennial herb 3
Dysphania botrys Jerusalem oak goosefoot Annual herb  
Echinochloa crus-galli Barnyard grass Annual grass  
Elatine ambigua Asian waterwort Annual herb  
Elymus caput-medusae ! Medusa head Annual grass  
Eragrostis cilianensis Stinkgrass Annual grass  
Erodium botrys Big heron bill Annual herb  
Erodium brachycarpum White stemmed filaree Annual herb  
Erodium cicutarium ! Coastal heron's bill Annual herb 4
Euchiton sphaericus Tropical creeping cudweed Annual herb  
Euphorbia lathyris ! Gopher plant Annual, Perennial herb 2
Euphorbia maculata Spotted spurge Annual herb  
Fallopia convolvulus Black bindweed Annual herb  
Festuca bromoides Brome fescue Annual grass  
Festuca myuros ! Rattail sixweeks grass Annual grass 4
Festuca perennis ! Italian rye grass Annual, Perennial grass 7
Festuca temulenta Darnel, tares Annual grass  
Filago gallica Narrow leaved filago Annual herb  
Galium divaricatum Lamarck's bedstraw Annual herb  
Galium parisiense Wall bedstraw Annual herb  
Galium spurium Sticky willy Annual herb  
Gastridium phleoides Nit grass Annual grass  
Geranium dissectum ! Wild geranium Annual herb  
Geranium molle Crane's bill geranium Annual, Perennial herb  
Geranium pusillum Small flowered geranium Annual herb  
Gnaphalium japonicum Japanese cudweed Annual herb  
Herniaria hirsuta Herniaria Annual herb  
Herniaria hirsuta ssp. hirsuta Herniaria Annual herb  
Herniaria hirsuta var. hirsuta Herniaria Annual herb  
Hibiscus trionum Flower of an hour Annual herb 2
Hordeum marinum Seaside barley Annual grass  
Hordeum marinum ssp. gussoneanum ! Barley Annual grass  
Hordeum murinum ! Foxtail barley Annual grass  
Hordeum murinum ssp. glaucum Foxtail Annual grass  
Hordeum murinum ssp. leporinum Farmer's foxtail Annual grass  
Hypochaeris glabra ! Smooth cats ear Annual herb  
Lactuca saligna Willow lettuce Annual herb  
Lactuca serriola Prickly lettuce Annual herb  
Lamium amplexicaule Henbit Annual herb  
Lamium purpureum Purple dead nettle Annual herb  
Lapsana communis Common nipplewort Annual herb  
Leontodon saxatilis Hawkbit Annual herb  
Lepidium campestre Field pepper grass Annual, Perennial herb  
Lepidium chalepense ! Lens-podded hoary cress Annual, Perennial herb  
Lepidium heterophyllum Variable leaved pepperwort Annual herb  
Lepidium perfoliatum Klamath pepper grass Annual herb  
Logfia gallica Narrowleaf cottonrose Annual herb  
Lolium multiflorum Italian rye grass Annual, Biennial grass 6
Lolium rigidum Rigid italian rye grass Annual grass 1
Lolium temulentum Darnel Annual grass  
Lythrum hyssopifolia ! Hyssop loosestrife Annual, Perennial herb  
Lythrum hyssopifolium Hyssop loosestrife Annual, Perennial herb  
Malva neglecta Dwarf mallow Annual, Perennial herb  
Medicago lupulina Black medick Annual, Perennial herb  
Medicago polymorpha ! California burclover Annual herb  
Medicago praecox Mediterranean medick Annual herb  
Melilotus alba Sweetclover Annual, Biennial herb 2
Melilotus albus White sweetclover Annual, Biennial herb 2
Melilotus officinalis Yellow sweetclover Annual, Biennial herb 2
Mollugo verticillata Indian chickweed Annual herb  
Myosotis discolor Forget me not Annual herb  
Myosotis verna Forget me not Annual, Perennial herb  
Persicaria hydropiper Common smartweed Annual herb  
Persicaria maculosa Spotted ladysthumb Annual herb  
Petrorhagia dubia Windmill pink Annual herb  
Phalaris paradoxa Hood canarygrass Annual grass  
Plantago hookeriana California plantain Annual herb 6
Poa annua Annual blue grass Annual grass  
Polygonum arenastrum Common knotweed Annual, Perennial herb  
Polygonum aviculare Prostrate knotweed Annual, Perennial herb  
Polygonum aviculare ssp. depressum Prostrate knotweed Annual, Perennial herb  
Polygonum buxiforme Box knotweed Annual, Perennial herb  
Polygonum convolvulus Black bindweed Annual herb  
Polygonum hydropiper Common smartweed Annual herb  
Polygonum persicaria Lady's thumb Annual herb  
Polypogon maritimus Mediterranean beard grass Annual grass  
Polypogon monspeliensis ! Annual beard grass Annual grass 2
Portulaca oleracea Common purslane Annual herb 1
Ranunculus arvensis Field buttercup Annual herb  
Raphanus sativus ! Jointed charlock Annual, Biennial herb  
Sagina apetala Dwarf pearlwort Annual herb  
Scleranthus annuus German knotgrass Annual herb  
Scleranthus annuus ssp. annuus German knotgrass Annual herb  
Senecio sylvaticus Woodland groundsel Annual herb  
Senecio vulgaris Common groundsel Annual herb  
Setaria viridis Green foxtail Annual grass  
Silene gallica Common catchfly Annual herb  
Sinapis arvensis ! Charlock Annual herb  
Sisymbrium altissimum Tumble mustard Annual herb  
Solanum physalifolium var. nitidibaccatum Nightshade Annual herb  
Solanum rostratum Buffalo berry Annual herb  
Sonchus asper Spiny sowthistle Annual herb  
Spergularia rubra Purple sand spurry Annual, Perennial herb  
Stellaria media Chickweed Annual herb 1
Taeniatherum caput-medusae Medusa head Annual grass  
Torilis arvensis ! Field hedge parsley Annual herb  
Torilis arvensis ssp. purpurea Purple field hedge parsley Annual herb  
Tribulus terrestris ! Puncture vine Annual herb  
Trifolium arvense Rabbitfoot clover Annual herb  
Trifolium campestre Hop clover Annual herb  
Trifolium dubium Shamrock Annual herb  
Trifolium hirtum ! Rose clover Annual herb 6
Trifolium incarnatum Crimson clover Annual herb 4
Valerianella locusta Corn salad Annual herb  
Ventenata dubia ! Ventenata grass Annual grass  
Verbena bonariensis ! Purple top vervain Annual, Biennial herb 13
Veronica persica Bird's eye speedwell Annual herb  
Vicia benghalensis Purple vetch Annual herb, Vine 3
Vicia villosa Hairy vetch Annual herb, Vine 3
Vicia villosa ssp. villosa Hairy vetch Annual herb, Vine  
Vulpia bromoides Six weeks fescue Annual grass  
Vulpia myuros Rattail fescue Annual grass 3
Vulpia myuros var. hirsuta Fox tail fescue Annual grass 3
Vulpia myuros var. myuros Six weeks fescue Annual grass 2
Xanthium spinosum Spiny cocklebur Annual herb  
  Lifeform: Biennial2 plants
  Lifeform: Perennial150 plants
Agrostis capillaris Colonial bentgrass Perennial grass 2
Agrostis gigantea Creeping bentgras Perennial grass 4
Agrostis semiverticillata Beardless rabbitsfoot grass Perennial grass  
Agrostis stolonifera ! Redtop Perennial grass 1
Agrostis viridis Bentgrass Perennial grass  
Allium triquetrum White flowered onion Perennial herb (bulb)  
Alopecurus pratensis ! Meadow foxtail Perennial grass 6
Anchusa officinalis Alkanet Perennial herb 1
Antennaria alpina Alpine pussytoes Perennial herb 1
Arrhenatherum elatius Tall oatgrass Perennial grass 2
Arundo donax ! Giant reed Perennial grass 3
Asparagus officinalis Garden asparagus Perennial herb 1
Barbarea vulgaris Yellow rocket Perennial herb  
Bromus inermis Smooth brome Perennial grass 3
Bromus inermis ssp. inermis Smooth brome Perennial grass  
Calamagrostis lactea Pale reedgrass Perennial grass  
Cardaria chalepensis Lens podded hoary cress Perennial herb  
Carduus acanthoides ! Spiny plumeless thistle Perennial herb  
Carduus nutans ! Nodding plumeless thistle Perennial herb  
Centaurea biebersteinii Spotted knapweed Perennial herb  
Centaurea diffusa ! Diffuse knapweed Perennial herb  
Centaurea maculosa Spotted knapweed Perennial herb  
Centaurea squarrosa Spreading thistle Perennial herb  
Centaurea stoebe Spotted knapweed Perennial herb  
Centaurea stoebe ssp. micranthos ! Spotted knapweed Perennial herb  
Centaurea virgata Squarrose knapweed Perennial herb  
Centaurea virgata ssp. squarrosa ! Squarrose knapweed Perennial herb  
Cerastium fontanum Common mouse ear chickweed Perennial herb  
Cerastium fontanum ssp. vulgare Common chickweed Perennial herb  
Cichorium intybus Chicory Perennial herb 9
Cirsium arvense ! Canada thistle Perennial herb  
Cirsium vulgare ! Bullthistle Perennial herb  
Conium maculatum ! Poison hemlock Perennial herb  
Convolvulus arvensis Field bindweed Perennial herb, Vine  
Coreopsis lanceolata Garden coreopsis Perennial herb 15
Cynodon dactylon ! Bermuda grass Perennial grass 4
Dactylis glomerata ! Orchardgrass Perennial grass 6
Daucus carota Carrot Perennial herb 2
Digitalis purpurea ! Foxglove Perennial herb 14
Dipsacus fullonum ! Wild teasel Perennial herb  
Elymus arizonicus Arizona ryegrass Perennial grass  
Elymus caninus Bearded wheatgrass Perennial grass  
Elymus hispidus Intermediate wheatgrass Perennial grass 6
Elymus ponticus Tall wheat grass Perennial grass 4
Elymus repens Quack grass Perennial grass  
Elytrigia elongata Tall wheatgrass Perennial grass 2
Elytrigia intermedia Intermediate wheatgrass Perennial grass 4
Elytrigia intermedia ssp. barbulata Barbed intermediate wheatgrass Perennial grass 1
Elytrigia intermedia ssp. intermedia Intermediate wheatgrass Perennial grass 2
Elytrigia pontica Tall wheatgrass Perennial grass 1
Elytrigia pontica ssp. pontica Rush wheatgrass Perennial grass 1
Elytrigia repens Quack grass Perennial grass  
Festuca arundinacea ! Reed fescue Perennial grass 7
Festuca pratensis Meadow fescue Perennial grass 2
Foeniculum vulgare ! Fennel Perennial herb 4
Galium tinctorium Stiff marsh bedstraw Perennial herb  
Glyceria Xoccidentalis Western manna grass Perennial grass (aquatic) 2
Heracleum sphondylium Eltrot Perennial herb 8
Hirschfeldia incana ! Mustard Perennial herb  
Holcus lanatus ! Common velvetgrass Perennial grass  
Hypericum perforatum ! Klamathweed Perennial herb 2
Hypericum perforatum ssp. perforatum Klamathweed Perennial herb  
Hypochaeris radicata ! Hairy cats ear Perennial herb  
Kickxia elatine Sharp point fluellin Perennial herb  
Lactuca canadensis Canada wild lettuce Perennial herb  
Lathyrus latifolius ! Sweet pea Perennial herb 3
Lathyrus pauciflorus Fewflower pea Perennial herb  
Lathyrus venosus Veiny pea Perennial herb 5
Leontodon taraxacoides Hawkbit Perennial herb  
Lepidium draba ssp. chalepense Lenspod whitetop Perennial herb  
Lepidium latifolium ! Perennial pepperweed Perennial herb  
Lesquerella kingii ssp. diversifolia King bladderpod Perennial herb  
Leucanthemum vulgare ! Oxe eye daisy Perennial herb 6
Linaria dalmatica Dalmatian toadflax Perennial herb  
Linaria dalmatica ssp. dalmatica ! Dalmatian toadflax Perennial herb  
Linaria genistifolia Broomleaf toadflax Perennial herb  
Linaria genistifolia ssp. dalmatica Dalmatian toad flax Perennial herb  
Linaria vulgaris ! Butter and eggs Perennial herb  
Linnaea borealis ssp. borealis Twinflower Perennial herb  
Lolium perenne Perennial rye grass Perennial grass 5
Lotus corniculatus Bird's foot trefoil Perennial herb 8
Lotus tenuis Narrow-leaf bird's-foot trefoil Perennial herb  
Luzula glabrata Smooth woodrush Perennial grass  
Luzula multiflora ssp. multiflora Common woodrush Perennial grass  
Marrubium vulgare ! White horehound Perennial herb 4
Medicago sativa Alfalfa Perennial herb 3
Melissa officinalis Lemon balm Perennial herb 6
Mentha pulegium ! Pennyroyal Perennial herb 6
Mentha spicata Spearmint Perennial herb 7
Mentha spicata var. spicata Spearmint Perennial herb 7
Minuartia nuttallii ssp. nuttallii Nuttall's sandwort Perennial herb  
Myriophyllum aquaticum ! Parrot's feather Perennial herb (aquatic) 1
Oenothera biennis Small flowered evening primrose Perennial herb 3
Oenothera glazioviana Red sepaled evening primrose Perennial herb 5
Onopordum acanthium ! Scotch cottonthistle Perennial herb  
Phalaris aquatica ! Harding grass Perennial grass 1
Phleum pratense Common timothy Perennial grass 4
Plantago lanceolata ! Ribwort Perennial herb  
Plantago major Common plantain Perennial herb 2
Platanthera dilatata var. dilatata Scentbottle Perennial herb  
Poa bulbosa Bulbous blue grass Perennial grass  
Poa bulbosa ssp. bulbosa Bulbous blue grass Perennial grass  
Poa bulbosa ssp. vivipara Bulbous blue grass Perennial grass  
Poa bulbosa var. bulbosa Perennial grass  
Poa bulbosa var. vivipara Perennial grass  
Poa compressa Canada blue grass Perennial grass 6
Poa palustris Fowl bluegrass Perennial grass 3
Poa pratensis ! Kentucky blue grass Perennial grass 2
Poa pratensis ssp. angustifolia Narrow leaved kentucky blue grass Perennial grass  
Poa pratensis ssp. pratensis Kentucky blue grass Perennial grass  
Polypogon australis Chilean beard grass Perennial grass  
Polypogon interruptus Ditch beard grass Perennial grass  
Polypogon viridis Water beard grass Perennial grass  
Potentilla recta Sulphur cinquefoil Perennial herb 1
Poterium sanguisorba Garden burnet Perennial herb 6
Reseda luteola Dyer's mignonette Perennial herb  
Rumex acetosella ! Sheep sorrel Perennial herb 1
Rumex crispus ! Curly dock Perennial herb 4
Rumex obtusifolius Broadleaf dock Perennial herb  
Rumex pulcher Fiddleleaf dock Perennial herb  
Rytidosperma penicillatum ! Purple awned wallaby grass Perennial grass  
Sanguisorba minor Small burnet Perennial herb 6
Sanguisorba minor ssp. balearica Small burnet Perennial herb  
Sanguisorba minor ssp. muricata Garden burnet Perennial herb  
Saponaria officinalis ! Bouncing bet Perennial herb 2
Saxifraga virginiensis Early saxifrage Perennial herb  
Senecio jacobaea ! Tansy ragwort Perennial herb  
Sorghum halepense Johnsongrass Perennial grass  
Symphytum officinale Comfrey Perennial herb 3
Tanacetum parthenium Feverfew Perennial herb 8
Tanacetum vulgare ! Tansy Perennial herb 5
Taraxacum erythrospermum Red-seeded dandelion Perennial herb  
Taraxacum officinale Red seeded dandelion Perennial herb 1
Thinopyrum intermedium Intermediate wheatgrass Perennial grass 1
Thinopyrum ponticum Tall wheatgrass Perennial grass 1
Tragopogon dubius Goat's beard Perennial herb  
Triantha glutinosa Sticky tofieldia Perennial herb  
Trifolium fragiferum Strawberry clover Perennial herb 6
Trifolium pratense Red clover Perennial herb 7
Trifolium repens White clover Perennial herb 9
Trillium sessile Toadshade Perennial herb 7
Typha angustifolia Narrow leaf cattail Perennial herb (aquatic)  
Valeriana capitata Captiate valerian Perennial herb  
Verbascum blattaria Moth mullein Perennial herb 1
Verbascum thapsus ! Woolly mullein Perennial herb 3
Verbena officinalis Herb of the cross Perennial herb 1
Veronica alpina Alpine speedwell Perennial herb  
Veronica anagallis-aquatica Water speedwell Perennial herb  
Vinca major ! Vinca Perennial herb 4
Viola odorata English violet Perennial herb 5
  Lifeform: Fern2 plants
  Lifeform: Shrub20 plants
  Lifeform: Tree10 plants
 
Pink background indicates a plant is non-native.
! indicates a plant is potentially invasive.
NB: found in Trinity County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county.