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Native plants recorded in your state and county

Native plants · California

Native plants of Trinity County

399 plant species are recorded as native to California in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Trinity County by USDA PLANTS. 297 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 2 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Trinity County, California

Native species
399 Typical California county: 333 (median of 58 counties)
Garden-ready natives
297 Typical California county: 239
Share by type (all 399 native species)
Percent of the 399 native species in each growth type
Tree 15% (58)
Shrub 13% (53)
Wildflower (forb) 49% (195)
Grass or grass-like 21% (83)
Vine 1% (4)
Fern 2% (6)

Wildflowers make up the largest share of the native list (49%), followed by grasses and grass-like plants (21%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zones 7b to 9a (2023 map).

The native plant list

Cold hardiness is estimated from each plant’s PLANTS minimum temperature. How we estimate it.

Garden-ready natives 297

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of Trinity County, California
PlantType HeightLight Water useHardy to
Alaska oniongrass Melica subulata Grass or grass-like 3.3 ft Shade-tolerant Medium Zone 4a
alpine laurel Kalmia microphylla Shrub 1 ft Shade-tolerant Medium Zone 4b
alpine leafybract aster Symphyotrichum foliaceum Wildflower (forb) 2 ft Sun Medium Zone 3b
alpine mountainsorrel Oxyria digyna Wildflower (forb) 1 ft Sun–part shade Medium Zone 3a
alpine timothy Phleum alpinum Grass or grass-like 1.4 ft Sun–part shade Medium Zone 3a
American alpine speedwell Veronica wormskjoldii Wildflower (forb) 1 ft Sun–part shade High Zone 4b
American bistort Polygonum bistortoides Wildflower (forb) 1.5 ft Sun High Zone 3b
American speedwell Veronica americana Wildflower (forb) 10 in Shade-tolerant High Zone 3b
American vetch Vicia americana Vine 1.3 ft Sun Low Zone 3b
Anderson's larkspur Delphinium andersonii Wildflower (forb) 2 ft Shade-tolerant Low Zone 5b
annual hairgrass Deschampsia danthonioides Grass or grass-like 1.5 ft Sun–part shade Medium Zone 12b
antelope bitterbrush Purshia tridentata Shrub 6 ft Sun–part shade Low Zone 3b
arctic pearlwort Sagina saginoides Wildflower (forb) 4 in Sun–part shade High Zone 4a
arrowleaf ragwort Senecio triangularis Wildflower (forb) 4 ft Sun–part shade High Zone 4a
awlfruit sedge Carex stipata Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
beaked hazelnut Corylus cornuta Tree 15 ft Shade-tolerant Medium Zone 2b
big deervetch Lotus crassifolius Wildflower (forb) 3.5 ft Sun Medium Zone 7a
big sagebrush Artemisia tridentata Tree 4 ft Sun Medium Zone 3a
bigflower agoseris Agoseris grandiflora Wildflower (forb) 1.8 ft Sun Medium Zone 6a
bigleaf maple Acer macrophyllum Tree 60 ft Sun–part shade Medium Zone 6a
bigseed biscuitroot Lomatium macrocarpum Wildflower (forb) 6 in Sun Low Zone 4b
bitter cherry Prunus emarginata Tree 80 ft Sun Medium Zone 5a
black hawthorn Crataegus douglasii Tree 15 ft Sun–part shade High Zone 2b
Blue Mountain buckwheat Eriogonum strictum Wildflower (forb) 2.2 ft Sun Low Zone 5a
blue oak Quercus douglasii Tree 60 ft Sun Low Zone 8a
blue wildrye Elymus glaucus Grass or grass-like 3.3 ft Shade-tolerant Low Zone 3b
bluebunch wheatgrass Pseudoroegneria spicata Grass or grass-like 3 ft Sun Low Zone 3b
bluejoint Calamagrostis canadensis Grass or grass-like 4.9 ft Sun Medium Zone 4a
bog blueberry Vaccinium uliginosum Shrub 2 ft Sun–part shade Medium Zone 3b
Brewer spruce Picea breweriana Tree 100 ft Shade-tolerant Medium Zone 6a
brickellbush aster Eucephalus brickellioides Wildflower (forb) 2 ft Sun Low Zone 8a
bristlystalked sedge Carex leptalea Grass or grass-like 1.5 ft Shade-tolerant High Zone 4a
broadleaf arnica Arnica latifolia Wildflower (forb) 2 ft Sun–part shade High Zone 4a
broadleaf cattail Typha latifolia Wildflower (forb) 5 ft Sun–part shade High Zone 3b
broadleaf lupine Lupinus latifolius Wildflower (forb) 25 ft Shade-tolerant High Zone 5b
broadlipped twayblade Listera convallarioides Wildflower (forb) 1 ft Shade-tolerant High Zone 3b
Brown's peony Paeonia brownii Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 5a
buckbrush Ceanothus cuneatus Shrub 11 ft Sun Medium Zone 6a
bunchleaf penstemon Penstemon heterophyllus Wildflower (forb) 2 ft Sun Medium Zone 9a
bush chinquapin Chrysolepis sempervirens Shrub 7 ft Shade-tolerant Low Zone 6b
California black oak Quercus kelloggii Tree 85 ft Sun Medium Zone 7a
California brome Bromus carinatus Grass or grass-like 4 ft Sun Low Zone 9a
California buckeye Aesculus californica Tree 25 ft Sun–part shade Medium Zone 7b
California buckthorn Frangula californica Tree 5 ft Sun Medium Zone 8a
California false hellebore Veratrum californicum Wildflower (forb) 6 ft Shade-tolerant High Zone 3b
California fescue Festuca californica Grass or grass-like 4 ft Sun Medium Zone 8a
California foothill pine Pinus sabiniana Tree 80 ft Sun Low Zone 8b
California laurel Umbellularia californica Tree 80 ft Shade-tolerant High Zone 6a
California melicgrass Melica californica Grass or grass-like 4 ft Sun–part shade Low Zone 8a
California oatgrass Danthonia californica Grass or grass-like 2 ft Sun Medium Zone 9a
California poppy Eschscholzia californica Wildflower (forb) 1.2 ft Sun–part shade Low Zone 8a
California red fir Abies magnifica Tree 150 ft Shade-tolerant Medium Zone 5a
California wildrose Rosa californica Shrub 10 ft Sun–part shade High Zone 8a
California yerba santa Eriodictyon californicum Shrub 8 ft Sun Low Zone 7a
Canada goldenrod Solidago canadensis Wildflower (forb) 3.5 ft Sun Medium Zone 3a
canyon live oak Quercus chrysolepis Tree 90 ft Shade-tolerant Medium Zone 8b
Cascade barberry Mahonia nervosa Shrub 2 ft Shade-tolerant Low Zone 5b
Cascara buckthorn Frangula purshiana Tree 35 ft Shade-tolerant Medium Zone 7a
chamise Adenostoma fasciculatum Shrub 10 ft Sun Medium Zone 10b
chamisso sedge Carex pachystachya Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
chokecherry Prunus virginiana Tree 25 ft Sun Medium Zone 3a
clasping arnica Arnica amplexicaulis Wildflower (forb) 2.5 ft Shade-tolerant High Zone 5a
cluster rose Rosa pisocarpa Shrub 3 ft Sun — Zone 5a
Colorado rush Juncus confusus Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
Columbia brome Bromus vulgaris Grass or grass-like 1 ft Shade-tolerant Low Zone 5a
Columbian monkshood Aconitum columbianum Wildflower (forb) 5 ft Sun–part shade High Zone 4b
common cowparsnip Heracleum maximum Wildflower (forb) 8 ft Sun High Zone 3b
common juniper Juniperus communis Tree 10 ft Sun Low Zone 3a
common rush Juncus effusus Grass or grass-like 6.6 ft Sun Medium Zone 3b
common selfheal Prunella vulgaris Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 3b
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
cows clover Trifolium wormskioldii Wildflower (forb) 3.5 ft Sun–part shade Medium Zone 4b
coyotebrush Baccharis pilularis Shrub 10 ft Sun Low Zone 9b
creeping barberry Mahonia repens Shrub 2 ft Shade-tolerant Medium Zone 5a
curl-leaf mountain mahogany Cercocarpus ledifolius Tree 20 ft Sun–part shade Low Zone 2b
curvepod yellowcress Rorippa curvisiliqua Wildflower (forb) 1 ft Shade-tolerant High Zone 12b
cutleaf daisy Erigeron compositus Wildflower (forb) 1 ft Sun Low Zone 4a
Davis' knotweed Polygonum davisiae Wildflower (forb) 1.3 ft Sun–part shade Low Zone 5a
deerbrush Ceanothus integerrimus Shrub 13 ft Sun Low Zone 6a
dotted smartweed Polygonum punctatum Wildflower (forb) 3.2 ft Sun Medium Zone 10b
Douglas-fir Pseudotsuga menziesii Tree 200 ft Sun–part shade Medium Zone 4a
Douglas' dustymaiden Chaenactis douglasii Wildflower (forb) 1.6 ft Sun–part shade Low Zone 3b
Drummond's rush Juncus drummondii Grass or grass-like 1.5 ft Sun–part shade Medium Zone 3b
dwarf bilberry Vaccinium cespitosum Shrub 1 ft Shade-tolerant High Zone 4a
dwarf purple monkeyflower Mimulus nanus Wildflower (forb) 6 in Sun Low Zone 10b
dwarf rose Rosa gymnocarpa Shrub 3 ft Shade-tolerant Medium Zone 5b
Eastern Mojave buckwheat Eriogonum fasciculatum Shrub 3 ft Sun Low Zone 8a
Eaton's fleabane Erigeron eatonii Wildflower (forb) 10 in Sun Low Zone 5b
Elmer's lupine Lupinus elmeri Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 4a
Engelmann spruce Picea engelmannii Tree 120 ft Shade-tolerant Medium Zone 2a
Eschscholtz's buttercup Ranunculus eschscholtzii Wildflower (forb) 1 ft Sun Medium Zone 4a
fernleaf biscuitroot Lomatium dissectum Wildflower (forb) 15 ft Sun–part shade Low Zone 8a
fireweed Chamerion angustifolium Wildflower (forb) 5.5 ft Sun–part shade High Zone 3b
foothill deathcamas Zigadenus paniculatus Wildflower (forb) 1.6 ft Sun Medium Zone 4a
fowl mannagrass Glyceria striata Grass or grass-like 5.7 ft Shade-tolerant Medium Zone 3b
fox sedge Carex vulpinoidea Grass or grass-like 3.2 ft Sun–part shade Medium Zone 3b
Fremont cottonwood Populus fremontii Tree 90 ft Sun High Zone 6a
giant chinquapin Chrysolepis chrysophylla Tree 100 ft Shade-tolerant Medium Zone 4a
glaucus willowherb Epilobium glaberrimum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 6b
golden sedge Carex aurea Grass or grass-like 1.2 ft Sun–part shade High Zone 4a
gooseberry currant Ribes montigenum Shrub 1 ft Sun–part shade Medium Zone 7a
granite prickly phlox Linanthus pungens Wildflower (forb) 2 ft Shade-tolerant Low Zone 4a
gray alder Alnus incana Tree 25 ft Sun–part shade High Zone 4a
green alder Alnus viridis Tree 10 ft Sun–part shade High Zone 1a
Greene's mountain ash Sorbus scopulina Tree 12 ft Sun–part shade Medium Zone 7a
greenleaf manzanita Arctostaphylos patula Shrub 6 ft Sun–part shade Medium Zone 4b
hairy arnica Arnica mollis Wildflower (forb) 2 ft Sun–part shade High Zone 4a
heartleaf arnica Arnica cordifolia Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4b
hollyleaved barberry Mahonia aquifolium Shrub 8 ft Shade-tolerant Low Zone 3a
hooded lady's tresses Spiranthes romanzoffiana Wildflower (forb) 2.5 ft Sun–part shade High Zone 3b
Hooker's evening primrose Oenothera elata Wildflower (forb) 5 ft Sun High Zone 5a
huckleberry oak Quercus vacciniifolia Shrub 1.3 ft Shade-tolerant Low Zone 4b
Idaho bentgrass Agrostis idahoensis Grass or grass-like 1.4 ft Sun Medium Zone 3b
Idaho blue-eyed grass Sisyrinchium idahoense Wildflower (forb) 1.7 ft Shade-tolerant High Zone 3b
Idaho fescue Festuca idahoensis Grass or grass-like 2 ft Sun–part shade Medium Zone 3b
incense cedar Calocedrus decurrens Tree 100 ft Sun–part shade Low Zone 4b
Indian plum Oemleria cerasiformis Tree 5 ft Sun–part shade — Zone 10a
Indianhemp Apocynum cannabinum Wildflower (forb) 3.3 ft Sun–part shade High Zone 3a
inland sedge Carex interior Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
Jeffrey pine Pinus jeffreyi Tree 180 ft Sun Medium Zone 3b
Klamath plum Prunus subcordata Tree 25 ft Sun Low Zone 4b
lambstongue ragwort Senecio integerrimus Wildflower (forb) 1.1 ft Sun–part shade Medium Zone 3b
largeflower hawksbeard Crepis occidentalis Wildflower (forb) 11 in Sun Low Zone 5a
largeleaf avens Geum macrophyllum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4a
leafy pondweed Potamogeton foliosus Wildflower (forb) — Sun High Zone 3b
Lemmon's needlegrass Achnatherum lemmonii Grass or grass-like 3 ft Sun Low Zone 4b
Lewis flax Linum lewisii Wildflower (forb) 2.5 ft Sun Medium Zone 3b
Lewis' mock orange Philadelphus lewisii Shrub 12 ft Sun Low Zone 8a
lodgepole pine Pinus contorta Tree 99 ft Sun Medium Zone 1a
longstalk clover Trifolium longipes Wildflower (forb) 6 in Sun–part shade Medium Zone 8a
longstalk starwort Stellaria longipes Wildflower (forb) 11 in Sun–part shade High Zone 4a
low pussytoes Antennaria dimorpha Wildflower (forb) 4 in Sun–part shade Low Zone 3b
Lyall's angelica Angelica arguta Wildflower (forb) 6 ft Sun–part shade High Zone 5b
maiden blue eyed Mary Collinsia parviflora Wildflower (forb) 1 ft Shade-tolerant Medium Zone 4a
marumleaf buckwheat Eriogonum marifolium Wildflower (forb) 10 in Sun Low Zone 5b
meadow barley Hordeum brachyantherum Grass or grass-like 2 ft Sun Medium Zone 3a
Mertens' rush Juncus mertensianus Grass or grass-like 11 in Sun–part shade High Zone 4a
Mertens' sedge Carex mertensii Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 4b
Mexican rush Juncus mexicanus Grass or grass-like 10 in Sun Medium Zone 5b
miner's lettuce Claytonia perfoliata Wildflower (forb) 1 ft Shade-tolerant Medium Zone 12b
Modoc hawksbeard Crepis modocensis Wildflower (forb) 1.4 ft Sun Low Zone 4b
mountain blue penstemon Penstemon laetus Wildflower (forb) 2.5 ft Sun Medium Zone 8b
mountain hemlock Tsuga mertensiana Tree 125 ft Shade-tolerant High Zone 5b
mountain muhly Muhlenbergia montana Grass or grass-like 1.5 ft Sun Medium Zone 3b
mountain pride Penstemon newberryi Wildflower (forb) 1 ft Sun–part shade Low Zone 5a
mountain sedge Carex scopulorum Grass or grass-like 1.3 ft Sun–part shade High Zone 3b
narrowleaf willow Salix exigua Tree 10 ft Sun–part shade High Zone 3b
Nebraska sedge Carex nebrascensis Grass or grass-like 3 ft Sun High Zone 3b
needle spikerush Eleocharis acicularis Grass or grass-like 8 in Sun Medium Zone 5a
nettleleaf giant hyssop Agastache urticifolia Wildflower (forb) 5 ft Sun–part shade Medium Zone 4a
nodding beggartick Bidens cernua Wildflower (forb) 3.2 ft Sun–part shade High Zone 12a
nodding microseris Microseris nutans Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4b
Nootka rose Rosa nutkana Shrub 10 ft Shade-tolerant High Zone 8a
Northwest Territory sedge Carex utriculata Grass or grass-like 3.5 ft Sun High Zone 3a
Nuttall's alkaligrass Puccinellia nuttalliana Grass or grass-like 10 in Sun Medium Zone 3b
oceanspray Holodiscus discolor Shrub 12 ft Sun High Zone 8a
onespike danthonia Danthonia unispicata Grass or grass-like 10 in Sun Low Zone 4b
oniongrass Melica bulbosa Grass or grass-like 1.8 ft Sun–part shade Low Zone 3a
orange agoseris Agoseris aurantiaca Wildflower (forb) 1 ft Sun Medium Zone 4a
Oregon ash Fraxinus latifolia Tree 70 ft Sun–part shade Medium Zone 6b
Oregon checkerbloom Sidalcea oregana Wildflower (forb) 4.5 ft Shade-tolerant High Zone 3b
Oregon white oak Quercus garryana Tree 80 ft Sun Low Zone 4a
Pacific aster Symphyotrichum chilense Wildflower (forb) 3.5 ft Sun–part shade Medium Zone 4b
Pacific bleeding heart Dicentra formosa Wildflower (forb) 1.5 ft Shade-tolerant Low Zone 5a
Pacific dogwood Cornus nuttallii Tree 50 ft Shade-tolerant Medium Zone 4b
Pacific madrone Arbutus menziesii Tree 80 ft Sun–part shade Low Zone 8b
Pacific ninebark Physocarpus capitatus Shrub 8 ft Sun Low Zone 4a
Pacific onion Allium validum Wildflower (forb) 2 ft Sun–part shade High Zone 5b
Pacific rhododendron Rhododendron macrophyllum Tree 15 ft Sun–part shade High Zone 8a
Pacific yew Taxus brevifolia Tree 40 ft Shade-tolerant Low Zone 5b
pale agoseris Agoseris glauca Shrub 1 ft Sun Medium Zone 4a
pale yellow lupine Lupinus luteolus Wildflower (forb) 2.9 ft Sun–part shade Medium Zone 12b
panicled bulrush Scirpus microcarpus Grass or grass-like 5.5 ft Sun Medium Zone 3b
Parish's yampah Perideridia parishii Wildflower (forb) 2.5 ft Shade-tolerant High Zone 4a
Parry's rush Juncus parryi Grass or grass-like 1 ft Sun–part shade Low Zone 4a
Philadelphia fleabane Erigeron philadelphicus Wildflower (forb) 2.8 ft Sun–part shade Medium Zone 4b
pinemat manzanita Arctostaphylos nevadensis Shrub 2 ft Shade-tolerant Low Zone 6a
pipsissewa Chimaphila umbellata Shrub 1.5 ft Shade-tolerant Low Zone 3b
plantainleaf buttercup Ranunculus alismifolius Wildflower (forb) 2 ft Sun–part shade High Zone 4a
ponderosa pine Pinus ponderosa Tree 223 ft Sun Medium Zone 3b
Port Orford cedar Chamaecyparis lawsoniana Tree 200 ft Shade-tolerant Medium Zone 6a
poverty rush Juncus tenuis Grass or grass-like 1.5 ft Sun–part shade Medium Zone 3b
prairie Junegrass Koeleria macrantha Grass or grass-like 1.5 ft Shade-tolerant High Zone 3b
prickly currant Ribes lacustre Shrub 3 ft Shade-tolerant — Zone 1a
primrose monkeyflower Mimulus primuloides Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4a
prostrate ceanothus Ceanothus prostratus Shrub 6 in Shade-tolerant Low Zone 5a
quaking aspen Populus tremuloides Tree 65 ft Sun High Zone 1a
Rainier pleated gentian Gentiana calycosa Wildflower (forb) 7 in Shade-tolerant Medium Zone 8a
rayless arnica Arnica ×diversifolia Wildflower (forb) 1.3 ft Sun–part shade High Zone 5a
red elderberry Sambucus racemosa Tree 18 ft Sun–part shade High Zone 4a
red huckleberry Vaccinium parvifolium Shrub 12 ft Shade-tolerant Low Zone 6a
redflower currant Ribes sanguineum Shrub 12 ft Sun–part shade Medium Zone 8a
redosier dogwood Cornus sericea Tree 12 ft Sun High Zone 3b
redstem ceanothus Ceanothus sanguineus Shrub 10 ft Sun–part shade High Zone 6a
rice cutgrass Leersia oryzoides Grass or grass-like 4.9 ft Sun High Zone 4a
rockloving erigeron Erigeron petrophilus Wildflower (forb) 1 ft Shade-tolerant Low Zone 8a
Rocky Mountain goldenrod Solidago multiradiata Wildflower (forb) 1 ft Sun — Zone 1a
Rocky Mountain maple Acer glabrum Tree 30 ft Sun–part shade Low Zone 3a
rose spirea Spiraea douglasii Shrub 7 ft Sun Low Zone 5a
Ross' sedge Carex rossii Grass or grass-like 1 ft Sun–part shade Medium Zone 4a
rough bentgrass Agrostis scabra Grass or grass-like 2.5 ft Sun Medium Zone 3b
rubber rabbitbrush Ericameria nauseosa Shrub 4 ft Sun Medium Zone 3b
rush pussytoes Antennaria luzuloides Wildflower (forb) 2 ft Sun Medium Zone 4a
Rydberg's penstemon Penstemon rydbergii Wildflower (forb) 3 ft Sun Low Zone 3b
Sandberg bluegrass Poa secunda Grass or grass-like 1.4 ft Sun–part shade Low Zone 3b
sanddune wallflower Erysimum capitatum Wildflower (forb) 2.5 ft Sun Medium Zone 4b
Saskatoon serviceberry Amelanchier alnifolia Tree 15 ft Sun–part shade Medium Zone 1a
scabland penstemon Penstemon deustus Wildflower (forb) 2 ft Sun Low Zone 4a
scarlet gilia Ipomopsis aggregata Wildflower (forb) 3 ft Sun Low Zone 5b
scarlet monkeyflower Mimulus cardinalis Wildflower (forb) 2.5 ft Shade-tolerant High Zone 4b
Scouler's willow Salix scouleriana Tree 50 ft Sun–part shade High Zone 6a
Scouler's woollyweed Hieracium scouleri Wildflower (forb) 2 ft Sun Medium Zone 4a
seep monkeyflower Mimulus guttatus Wildflower (forb) 2.5 ft Shade-tolerant High Zone 3b
shiny chickweed Stellaria nitens Wildflower (forb) 10 in Shade-tolerant Medium Zone 12a
shorthair reedgrass Calamagrostis breweri Grass or grass-like 5 ft Sun High Zone 4b
showy milkweed Asclepias speciosa Wildflower (forb) 6 ft Sun Medium Zone 4a
shrubby cinquefoil Dasiphora fruticosa Shrub 2.5 ft Sun–part shade Low Zone 4b
Siberian springbeauty Claytonia sibirica Wildflower (forb) 1.4 ft Shade-tolerant Medium Zone 3a
sicklekeel lupine Lupinus albicaulis Wildflower (forb) 3 ft Sun Medium Zone 12a
Sierra currant Ribes nevadense Shrub 6 ft Sun–part shade High Zone 4b
Sierra gooseberry Ribes roezlii Shrub 5 ft Sun–part shade Low Zone 4b
Sierra larkspur Delphinium glaucum Wildflower (forb) 8 ft Shade-tolerant High Zone 4b
Sierra rush Juncus nevadensis Grass or grass-like 2 ft Sun–part shade High Zone 4a
silverleaf phacelia Phacelia hastata Wildflower (forb) 2 ft Sun–part shade Medium Zone 3b
Sitka willow Salix sitchensis Tree 23 ft Sun High Zone 5b
skunkbush sumac Rhus trilobata Shrub 4 ft Sun–part shade Low Zone 2a
slender cinquefoil Potentilla gracilis Wildflower (forb) 2.4 ft Sun Low Zone 3a
slender clarkia Clarkia gracilis Wildflower (forb) 2.5 ft Sun–part shade Medium Zone 12b
slender flatsedge Cyperus bipartitus Grass or grass-like 5 ft Sun Medium Zone 10b
slender hairgrass Deschampsia elongata Grass or grass-like 3 ft Sun Low Zone 3b
slender wheatgrass Elymus trachycaulus Grass or grass-like 3 ft Sun Medium Zone 3b
slenderbeak sedge Carex athrostachya Grass or grass-like 2 ft Sun–part shade High Zone 4a
small camas Camassia quamash Wildflower (forb) 2.3 ft Shade-tolerant High Zone 4b
small enchanter's nightshade Circaea alpina Wildflower (forb) 11 in Shade-tolerant Medium Zone 3b
small white violet Viola macloskeyi Wildflower (forb) 6 in Shade-tolerant High Zone 4b
smallflowered woodrush Luzula parviflora Grass or grass-like 2 ft Shade-tolerant High Zone 4a
smallwing sedge Carex microptera Grass or grass-like 2 ft Sun High Zone 4a
smooth blue aster Symphyotrichum laeve Wildflower (forb) 4 ft Sun Medium Zone 3a
snowbrush ceanothus Ceanothus velutinus Tree 10 ft Sun Medium Zone 5a
softstem bulrush Schoenoplectus tabernaemontani Grass or grass-like 9 ft Sun High Zone 3b
spearleaf arnica Arnica longifolia Wildflower (forb) 2 ft Shade-tolerant High Zone 4a
spike bentgrass Agrostis exarata Grass or grass-like 3 ft Sun Medium Zone 3b
spike trisetum Trisetum spicatum Grass or grass-like 1.9 ft Sun–part shade Medium Zone 3b
spreading phlox Phlox diffusa Wildflower (forb) 6 in Shade-tolerant Low Zone 6a
spreadingpod rockcress Arabis ×divaricarpa Wildflower (forb) 3 ft Shade-tolerant Low Zone 4b
squirreltail Elymus elymoides Grass or grass-like 1.5 ft Sun Low Zone 3a
star sedge Carex echinata Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
sticky cinquefoil Potentilla glandulosa Wildflower (forb) 1.5 ft Sun–part shade Low Zone 4a
sticky currant Ribes viscosissimum Shrub 3.5 ft Sun — Zone 3b
sugar pine Pinus lambertiana Tree 229 ft Sun–part shade Medium Zone 4b
sulphur-flower buckwheat Eriogonum umbellatum Shrub 1 ft Sun Low Zone 8a
swordleaf rush Juncus ensifolius Grass or grass-like 2 ft Sun–part shade High Zone 3b
tall hairy agrimony Agrimonia gryposepala Wildflower (forb) 5.9 ft Sun–part shade Medium Zone 3a
tall trisetum Trisetum canescens Grass or grass-like 3.5 ft Sun–part shade Medium Zone 4a
tall woolly buckwheat Eriogonum elatum Wildflower (forb) 3 ft Sun Low Zone 4b
tanoak Notholithocarpus densiflorus Tree 125 ft Shade-tolerant Medium Zone 8a
tapertip hawksbeard Crepis acuminata Wildflower (forb) 3 ft Sun–part shade Low Zone 3b
tapertip onion Allium acuminatum Wildflower (forb) 1 ft Sun Low Zone 4b
tarweed fiddleneck Amsinckia lycopsoides Wildflower (forb) 3 ft Sun Low Zone 4b
thimbleberry Rubus parviflorus Shrub 4 ft Sun–part shade High Zone 4b
thinleaf huckleberry Vaccinium membranaceum Shrub 4.5 ft Sun–part shade Low Zone 3b
three-way sedge Dulichium arundinaceum Grass or grass-like 2.6 ft Sun–part shade High Zone 3b
timber oatgrass Danthonia intermedia Grass or grass-like 1.5 ft Sun–part shade Low Zone 4a
tinker's penny Hypericum anagalloides Wildflower (forb) 10 in Sun–part shade High Zone 12a
toad rush Juncus bufonius Grass or grass-like 1 ft Sun Medium Zone 12a
tufted hairgrass Deschampsia cespitosa Grass or grass-like 3.4 ft Sun Low Zone 3b
umbrella starwort Stellaria umbellata Wildflower (forb) 1 ft Shade-tolerant High Zone 4b
Utah serviceberry Amelanchier utahensis Tree 15 ft Sun–part shade Medium Zone 4b
valley oak Quercus lobata Tree 100 ft Sun Medium Zone 8a
vine maple Acer circinatum Tree 20 ft Shade-tolerant Medium Zone 6a
wavyleaf Indian paintbrush Castilleja applegatei Wildflower (forb) 1.5 ft Sun Low Zone 4b
wax currant Ribes cereum Shrub 3 ft Sun Low Zone 5a
western azalea Rhododendron occidentale Shrub 10 ft Sun–part shade High Zone 8b
western columbine Aquilegia formosa Wildflower (forb) 3 ft Shade-tolerant Medium Zone 5a
western fescue Festuca occidentalis Grass or grass-like 3 ft Shade-tolerant Low Zone 3a
western juniper Juniperus occidentalis Tree 33 ft Sun Low Zone 4a
western Labrador tea Ledum glandulosum Shrub 4.5 ft Shade-tolerant Medium Zone 4b
western needlegrass Achnatherum occidentale Grass or grass-like 2 ft Sun–part shade Low Zone 4b
western pearly everlasting Anaphalis margaritacea Wildflower (forb) 3 ft Sun–part shade Medium Zone 3a
western sweetroot Osmorhiza occidentalis Wildflower (forb) 4 ft Shade-tolerant Medium Zone 3b
western swordfern Polystichum munitum Fern 3.5 ft Shade-tolerant High Zone 4a
western waterleaf Hydrophyllum occidentale Wildflower (forb) 1.5 ft Shade-tolerant Medium Zone 5b
western white clematis Clematis ligusticifolia Vine 1 ft Sun–part shade Medium Zone 3b
western white pine Pinus monticola Tree 200 ft Sun–part shade Medium Zone 4a
white alder Alnus rhombifolia Tree 65 ft Shade-tolerant High Zone 5a
white hawkweed Hieracium albiflorum Wildflower (forb) 3 ft Sun–part shade Low Zone 4a
white marsh marigold Caltha leptosepala Wildflower (forb) 1 ft Sun High Zone 4a
whitebark pine Pinus albicaulis Tree 65 ft Sun–part shade Medium Zone 1b
whitebark raspberry Rubus leucodermis Vine 1 ft Sun Medium Zone 8a
whiteleaf manzanita Arctostaphylos manzanita Shrub 8 ft Sun–part shade Low Zone 5a
whitestem gooseberry Ribes inerme Shrub 8 ft Shade-tolerant Medium Zone 4b
whitethorn ceanothus Ceanothus cordulatus Shrub 8 ft Sun Low Zone 5a
woodrush sedge Carex luzulina Grass or grass-like 2 ft Sun High Zone 4a
Woods' rose Rosa woodsii Shrub 3 ft Sun–part shade Medium Zone 3a
woolly groundsel Packera cana Wildflower (forb) 1.5 ft Sun Low Zone 3a
woollypod milkvetch Astragalus purshii Wildflower (forb) 7 in Sun Low Zone 4a
yellow rabbitbrush Chrysothamnus viscidiflorus Shrub 3 ft Sun Low Zone 5a

Other native species recorded here 102

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

  • Aleutian maidenhair Adiantum aleuticum
  • American bird's-foot trefoil Lotus unifoliolatus
  • American rockbrake Cryptogramma acrostichoides
  • American sloughgrass Beckmannia syzigachne
  • American wild carrot Daucus pusillus
  • American yellowrocket Barbarea orthoceras
  • annual muhly Muhlenbergia minutissima
  • arroyo willow Salix lasiolepis
  • autumn dwarf gentian Gentianella amarella
  • bastard toadflax Comandra umbellata
  • bearded flatsedge Cyperus squarrosus
  • bigleaf lupine Lupinus polyphyllus
  • blite goosefoot Chenopodium capitatum
  • brittle bladderfern Cystopteris fragilis
  • brownish beaksedge Rhynchospora capitellata
  • chaffweed Anagallis minima
  • claspleaf twistedstalk Streptopus amplexifolius
  • clustered broomrape Orobanche fasciculata
  • ditch rabbitsfoot grass Polypogon interruptus
  • Douglas' knotweed Polygonum douglasii
  • Dudley's rush Juncus dudleyi
  • elkweed Frasera speciosa
  • fairy slipper Calypso bulbosa
  • false mermaidweed Floerkea proserpinacoides
  • feathery false lily of the valley Maianthemum racemosum
  • foxtail muhly Muhlenbergia andina
  • fragrant bedstraw Galium triflorum
  • fringed willowherb Epilobium ciliatum
  • giant red Indian paintbrush Castilleja miniata
  • green false hellebore Veratrum viride
  • hairy evening primrose Oenothera villosa
  • hoary tansyaster Machaeranthera canescens
  • hooded coralroot Corallorhiza striata
  • hookedspur violet Viola adunca
  • Hornemann's willowherb Epilobium hornemannii
  • Howell's pussytoes Antennaria howellii
  • largeleaf sandwort Moehringia macrophylla
  • least duckweed Lemna minuta
  • liverleaf wintergreen Pyrola asarifolia
  • Macoun's barley ×Elyhordeum macounii
  • Macoun's cudweed Pseudognaphalium macounii
  • manyflowered monkeyflower Mimulus floribundus
  • meadow deathcamas Zigadenus venenosus
  • Menzies' campion Silene menziesii
  • Menzies' fiddleneck Amsinckia menziesii
  • Mexican lovegrass Eragrostis mexicana
  • mountain tansymustard Descurainia incana
  • mountain tarweed Madia glomerata
  • muskflower Mimulus moschatus
  • narrowleaf bur-reed Sparganium angustifolium
  • narrowleaf minerslettuce Montia linearis
  • neckweed Veronica peregrina
  • needleleaf navarretia Navarretia intertexta
  • northern hollyfern Polystichum lonchitis
  • oneflowered broomrape Orobanche uniflora
  • pale spikerush Eleocharis macrostachya
  • Pennsylvania pellitory Parietaria pensylvanica
  • pimpernel willowherb Epilobium anagallidifolium
  • pinesap Monotropa hypopitys
  • pinyon goosefoot Chenopodium atrovirens
  • pullup muhly Muhlenbergia filiformis
  • red baneberry Actaea rubra
  • Rocky Mountain woodsia Woodsia scopulina
  • rosy pussytoes Antennaria rosea
  • sand spikerush Eleocharis montevidensis
  • scentbottle Platanthera dilatata
  • Scouler's popcornflower Plagiobothrys scouleri
  • seaside arrowgrass Triglochin maritima
  • sidebells wintergreen Orthilia secunda
  • slender bog orchid Platanthera stricta
  • slender phlox Microsteris gracilis
  • slender-spire orchid Piperia unalascensis
  • small Venus' looking-glass Triodanis biflora
  • smallflower halfchaff sedge Lipocarpha micrantha
  • spearleaf stonecrop Sedum lanceolatum
  • spotted fritillary Fritillaria atropurpurea
  • spreading dogbane Apocynum androsaemifolium
  • spreading fleabane Erigeron divergens
  • spring forget-me-not Myosotis verna
  • starry false lily of the valley Maianthemum stellatum
  • stream orchid Epipactis gigantea
  • summer coralroot Corallorhiza maculata
  • sweetcicely Osmorhiza berteroi
  • tall annual willowherb Epilobium brachycarpum
  • tasselflower brickellbush Brickellia grandiflora
  • threadleaf crowfoot Ranunculus trichophyllus
  • tiny trumpet Collomia linearis
  • tower rockcress Arabis glabra
  • trailing pearlwort Sagina decumbens
  • twinflower Linnaea borealis
  • Virginia pepperweed Lepidium virginicum
  • warty spurge Euphorbia spathulata
  • water minerslettuce Montia chamissoi
  • western marsh cudweed Gnaphalium palustre
  • western rattlesnake plantain Goodyera oblongifolia
  • white beaksedge Rhynchospora alba
  • willow dock Rumex salicifolius
  • witchgrass Panicum capillare
  • woodland pinedrops Pterospora andromedea
  • woodland strawberry Fragaria vesca
  • woolly sedge Carex pellita
  • Wright's cudweed Pseudognaphalium canescens
Also listed as native and introduced here 2

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

Compared with California

The typical county is the median of the 58 California counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, Trinity County and California
MeasureTrinity CountyTypical countyStatewide
Native species 399 333 1,108
Garden-ready natives 297 239 720
Tree 58 — 111
Shrub 53 — 140
Wildflower (forb) 195 — 559
Grass or grass-like 83 — 253
Vine 4 — 16
Fern 6 — 29

Neighboring counties

Counties that share a ZIP code with Trinity County.

Look up another ZIP

Matches your ZIP to the county it mostly lies in, then lists the plants recorded as native to your state (Kew’s World Checklist and USDA PLANTS) and recorded in that county by USDA PLANTS.

Source & data date

Source
USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation
USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date
Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones
USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope
Trinity County (county FIPS 06105), California. 399 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method
A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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