Shasta Costa

Siskiyou National Forests · Oregon · 14,420 acres · RoadlessArea Rule (2001)
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Observed Species (260)

Species with confirmed research-grade observation records from iNaturalist community science data.

(1)
Iris × thompsonii
Aleutian Maidenhair Fern (3)
Adiantum aleuticum
American Black Bear (3)
Ursus americanus
American Bullfrog (1)
Lithobates catesbeianus
American Dipper (1)
Cinclus mexicanus
American Mink (2)
Neogale vison
American Rockbrake (2)
Cryptogramma acrostichoides
American Trailplant (2)
Adenocaulon bicolor
Aquatic Gartersnake (2)
Thamnophis atratus
Arctic Sweet-colt's-foot (1)
Petasites frigidus
Arrowleaf Buckwheat (3)
Eriogonum compositum
Asiatic Clam (1)
Corbicula fluminea
Bald Eagle (1)
Haliaeetus leucocephalusDL
Beaked Hazelnut (1)
Corylus cornuta
Bigleaf Maple (3)
Acer macrophyllum
Bitter Cherry (1)
Prunus emarginata
Black Arion Slug (1)
Arion ater
Black Juga (2)
Juga nigrina
Black Medic (1)
Medicago lupulina
Bladder Campion (1)
Silene latifolia
Bloomer's Fleabane (1)
Erigeron bloomeri
Blue Field Gilia (4)
Gilia capitata
Bouncing-bet (1)
Saponaria officinalis
Bristly Dogtail Grass (4)
Cynosurus echinatus
Broad Rockslater (1)
Ligidium latum
California Bay (2)
Umbellularia californica
California Black Oak (7)
Quercus kelloggii
California Globemallow (1)
Iliamna latibracteata
California Grape (2)
Vitis californica
California Honeysuckle (4)
Lonicera hispidula
California Kingsnake (1)
Lampropeltis californiae
California Milkwort (1)
Rhinotropis californica
California Mountain Kingsnake (2)
Lampropeltis zonata
California Pitcherplant (2)
Darlingtonia californica
California Yerba Santa (2)
Eriodictyon californicum
Canada Goose (1)
Branta canadensis
Canada Jay (1)
Perisoreus canadensis
Canyon Live Oak (13)
Quercus chrysolepis
Cardwell's Beardtongue (1)
Penstemon cardwellii
Catchweed Bedstraw (1)
Galium aparine
Chickweed Monkeyflower (1)
Erythranthe alsinoides
Chicory (2)
Cichorium intybus
Chilean Tarweed (1)
Madia sativa
Clasping-leaf Dogbane (1)
Apocynum cannabinum
Clouded Salamander (1)
Aneides ferreus
Coast Manroot (3)
Marah oregana
Coastal Brookfoam (1)
Boykinia occidentalis
Coastal Woodfern (1)
Dryopteris arguta
Common Goat's-beard (1)
Aruncus dioicus
Common Merganser (2)
Mergus merganser
Common Monkeyflower (1)
Erythranthe guttata
Common Mullein (1)
Verbascum thapsus
Common Sagebrush Lizard (1)
Sceloporus graciosus
Common St. John's-wort (5)
Hypericum perforatum
Common Wintergreen (1)
Chimaphila umbellata
Common Woolly-sunflower (4)
Eriophyllum lanatum
Common Yarrow (1)
Achillea millefolium
Creeping Beardtongue (1)
Penstemon davidsonii
Crevice Alumroot (1)
Heuchera micrantha
Curly Pondweed (1)
Potamogeton crispus
Deerbrush (10)
Ceanothus integerrimus
Del Norte Salamander (2)
Plethodon elongatus
Dense Lace Fern (3)
Aspidotis densa
Dimpled Specklebelly (1)
Lobaria anthraspis
Douglas' Savory (2)
Clinopodium douglasii
Douglas' Wormwood (1)
Artemisia douglasiana
Douglas's Ground Squirrel (2)
Otospermophilus douglasii
Douglas-fir (14)
Pseudotsuga menziesii
Dyer's Woad (1)
Isatis tinctoria
Elegant Mariposa Lily (1)
Calochortus elegans
English Plantain (1)
Plantago lanceolata
Ensatina (1)
Ensatina eschscholtzii
Evergreen Blueberry (1)
Vaccinium ovatum
Fairy Slipper (4)
Calypso bulbosa
Fall Thistle (3)
Cirsium occidentale
Farewell-to-spring (4)
Clarkia amoena
Field Chickweed (1)
Cerastium arvense
Field Garlic (1)
Allium vineale
Fine-leaf Clover (1)
Trifolium angustifolium
Fireweed (1)
Chamaenerion angustifolium
Fork-toothed Ookow (4)
Dichelostemma congestum
Fox Sparrow (1)
Passerella iliaca
Fringed Pinesap (1)
Pleuricospora fimbriolata
Frosty paintbrush (1)
Castilleja pruinosa
Garden Bird's-foot-trefoil (1)
Lotus corniculatus
Giant Chainfern (1)
Woodwardia fimbriata
Giant Fawnlily (3)
Erythronium oregonum
Giant Horsetail (1)
Equisetum telmateia
Giant Purple Trillium (1)
Trillium kurabayashii
Giant Rattlesnake-plantain (1)
Goodyera oblongifolia
Goldback Fern (2)
Pentagramma triangularis
Golden Blue-eyed-grass (1)
Sisyrinchium californicum
Gophersnake (2)
Pituophis catenifer
Great Blue Heron (2)
Ardea herodias
Green-tailed Towhee (1)
Pipilo chlorurus
Greenleaf Manzanita (1)
Arctostaphylos patula
Hairy Owl's-clover (3)
Castilleja tenuis
Hairy Tufted Jumping Spider (1)
Phidippus comatus
Hairy Water Fern (1)
Marsilea vestita
Hairy-pink (3)
Petrorhagia dubia
Harvest Brodiaea (5)
Brodiaea elegans
Henderson's Shootingstar (1)
Primula hendersonii
Henderson's Triteleia (4)
Triteleia hendersonii
Hoary Pincushion (1)
Chaenactis douglasii
Hot-rock Beardtongue (1)
Penstemon deustus
Howell's Saxifrage (1)
Micranthes howellii
Hummingbird-trumpet (3)
Epilobium canum
Incense Cedar (2)
Calocedrus decurrens
Jelly Babies (1)
Leotia lubrica
Jordan's Maidenhair Fern (4)
Adiantum jordanii
Koehler's Rockcress (1)
Boechera koehleri
Lace Lipfern (1)
Myriopteris gracillima
Large Fringe-cup (1)
Tellima grandiflora
Large Quaking Grass (4)
Briza maxima
Largeleaf Periwinkle (1)
Vinca major
Leichtlin's Camassia (1)
Camassia leichtlinii
Leucolepis Umbrella Moss (1)
Leucolepis acanthoneura
Lindley's Lupine (1)
Lupinus bicolor
Littleleaf Miner's-lettuce (2)
Montia parvifolia
Littleleaf Silverback (4)
Luina hypoleuca
Long-beak Heron's-bill (1)
Erodium botrys
Longleaf Oregon-grape (1)
Berberis nervosa
Lung Lichen (1)
Lobaria pulmonaria
MacGillivray's Warbler (1)
Geothlypis tolmiei
Mallard (1)
Anas platyrhynchos
Marbled Wild Ginger (1)
Asarum marmoratum
Marsh Valerian (1)
Valeriana sitchensis
Menzies' Baby-blue-eyes (1)
Nemophila menziesii
Menzies' Wintergreen (2)
Chimaphila menziesii
Miner's-lettuce (1)
Claytonia perfoliata
Modest Whipple-vine (2)
Whipplea modesta
Mountain Quail (3)
Oreortyx pictus
Mountain Whitethorn (1)
Ceanothus cordulatus
Mountain Wildmint (1)
Monardella odoratissima
Naked Buckwheat (10)
Eriogonum nudum
Narrowleaf Mule's-ears (1)
Wyethia angustifolia
Narrowleaf Owl's-clover (1)
Castilleja attenuata
Narrowleaf Swordfern (1)
Polystichum imbricans
Nashville Warbler (1)
Leiothlypis ruficapilla
Nelson's Desert-parsley (2)
Lomatium hallii
Netted Specklebelly (1)
Lobaria anomala
North American Racer (2)
Coluber constrictor
Northern Flicker (1)
Colaptes auratus
Northwestern Gartersnake (1)
Thamnophis ordinoides
Northwestern Pond Turtle (3)
Actinemys marmorataProposed Threatened
Oceanspray (4)
Holodiscus discolor
Ojai Fritillary (1)
Fritillaria affinis
Olympic Onion (1)
Allium crenulatum
One-sided Wintergreen (1)
Orthilia secunda
Oregon Ash (1)
Fraxinus latifolia
Oregon Beaked Moss (1)
Kindbergia oregana
Oregon Fetid Adder's-tongue (1)
Scoliopus hallii
Oregon Lupine (1)
Lupinus oreganus
Oregon White Oak (11)
Quercus garryana
Oregon Whitetop Aster (2)
Sericocarpus oregonensis
Osprey (3)
Pandion haliaetus
Oxeye Daisy (1)
Leucanthemum vulgare
Pacific Bananaslug (4)
Ariolimax columbianus
Pacific Black-snakeroot (1)
Sanicula crassicaulis
Pacific Madrone (5)
Arbutus menziesii
Pacific Sideband Snail (13)
Monadenia fidelis
Pacific Stonecrop (8)
Sedum spathulifolium
Pacific Treefrog (1)
Pseudacris regilla
Paper Onion (1)
Allium amplectens
Pearly Everlasting (1)
Anaphalis margaritacea
Penny-royal (4)
Mentha pulegium
Perennial Pea (3)
Lathyrus latifolius
Pileated Woodpecker (1)
Dryocopus pileatus
Pink Plectritis (1)
Plectritis congesta
Pink Wintergreen (1)
Pyrola asarifolia
Puget Sound Larkspur (1)
Delphinium menziesii
Puncture-vine (1)
Tribulus terrestris
Purple Loosestrife (7)
Lythrum salicaria
Purple Milkweed (7)
Asclepias cordifolia
Rabbitfoot Clover (1)
Trifolium arvense
Rainbow Trout or Steelhead (2)
Oncorhynchus mykiss
Redside Shiner (1)
Richardsonius balteatus
Rice Cutgrass (1)
Leersia oryzoides
Ring-necked Snake (1)
Diadophis punctatus
Rose Campion (1)
Silene coronaria
Rough-skinned Newt (8)
Taricha granulosa
Ruffed Grouse (3)
Bonasa umbellus
Salal (1)
Gaultheria shallon
Santa Barbara Sedge (1)
Carex barbarae
Saskatoon (2)
Amelanchier alnifolia
Scarlet Monkeyflower (1)
Erythranthe cardinalis
Scotch Broom (1)
Cytisus scoparius
Scouler's Bellflower (1)
Campanula scouleri
Sedge-leaf Whitethorn (2)
Ceanothus cuneatus
Self-heal (3)
Prunella vulgaris
Short Stalk Penstemon (1)
Penstemon parvulus
Showy Milkweed (5)
Asclepias speciosa
Showy Tarweed (7)
Madia elegans
Siberian Springbeauty (2)
Claytonia sibirica
Sierra Gooseberry (3)
Ribes roezlii
Sierra Jewelflower (2)
Streptanthus tortuosus
Silverleaf Scorpionweed (2)
Phacelia hastata
Siskiyou Bitterroot (2)
Lewisia cotyledon
Sky-blue Beardtongue (1)
Penstemon azureus
Slender Catchfly (5)
Silene greenei
Slender Oat (1)
Avena barbata
Small Inside-out-flower (3)
Vancouveria planipetala
Small-flower Catchfly (2)
Silene gallica
Small-flower Woodland-star (2)
Lithophragma parviflorum
Small-flowered Trefoil (1)
Acmispon parviflorus
Smith's Fairybells (1)
Prosartes smithii
Smooth Wild Rye (1)
Elymus glaucus
Snow Dwarf Bramble (1)
Rubus nivalis
Solomon's-plume (2)
Maianthemum racemosum
Southern Alligator Lizard (2)
Elgaria multicarinata
Spotted Coralroot (1)
Corallorhiza maculata
Spreading Rush (1)
Juncus patens
Striped Skunk (1)
Mephitis mephitis
Sugarstick (1)
Allotropa virgata
Sulphur-flower Buckwheat (1)
Eriogonum umbellatum
Tall Flatsedge (1)
Cyperus eragrostis
Tall Oatgrass (1)
Arrhenatherum elatius
Tall White Bog Orchid (1)
Platanthera dilatata
Thickleaf Bird's-foot-trefoil (1)
Hosackia crassifolia
Tolmie's Mariposa Lily (4)
Calochortus tolmiei
Tongue Clarkia (1)
Clarkia rhomboidea
Townsend's Chipmunk (2)
Neotamias townsendii
Turkey Tail (1)
Trametes versicolor
Turkey Vulture (1)
Cathartes aura
Umbrella Plant (4)
Darmera peltata
Umpqua Pikeminnow (2)
Ptychocheilus umpquae
Veiled Polypore (2)
Cryptoporus volvatus
Wallace's Spikemoss (1)
Selaginella wallacei
Wapiti (1)
Cervus canadensis
Water Smartweed (1)
Persicaria amphibia
Wavyleaf Soap-plant (5)
Chlorogalum pomeridianum
Western Fence Lizard (8)
Sceloporus occidentalis
Western Forest Scorpion (5)
Uroctonus mordax
Western Ladies'-tresses (1)
Spiranthes porrifolia
Western Poison-oak (6)
Toxicodendron diversilobum
Western Rattlesnake (1)
Crotalus oreganus
Western Skink (4)
Plestiodon skiltonianus
Western Spotted Skunk (1)
Spilogale gracilis
Western Swordfern (4)
Polystichum munitum
Western Trillium (2)
Trillium ovatum
White Inside-out-flower (1)
Vancouveria hexandra
White Moth Mullein (3)
Verbascum blattaria
White Triteleia (2)
Triteleia hyacinthina
White-tip Clover (1)
Trifolium variegatum
Wild Carrot (1)
Daucus carota
Winter Currant (2)
Ribes sanguineum
Winter Vetch (2)
Vicia villosa
Woodland Tarweed (4)
Anisocarpus madioides
Yellow Star-thistle (2)
Centaurea solstitialis
Yellow-rumped Warbler (1)
Setophaga coronata
Yellow-spotted Millipede (2)
Harpaphe haydeniana
Yellowseed False Pimpernel (1)
Lindernia dubia
a fungus (1)
Porodaedalea pini
a fungus (1)
Ganoderma oregonense
a jumping spider (1)
Pelegrina aeneola
blue dicks (1)
Dipterostemon capitatus
greater bird's-foot-trefoil (1)
Lotus pedunculatus
snow queen (1)
Veronica regina-nivalis
Federally Listed Species (7)

Species identified by the U.S. Fish and Wildlife Service as potentially occurring within this area based on range and habitat data. These designations do not indicate confirmed presence — they identify habitat where agency actions may require consultation under the Endangered Species Act.

Franklin Bumble Bee
Bombus frankliniEndangered
Northern Spotted Owl
Strix occidentalis caurinaThreatened
Marbled Murrelet
Brachyramphus marmoratus
Monarch
Danaus plexippusProposed Threatened
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Pacific Marten
Martes caurina
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Other Species of Concern (8)

Species identified by the U.S. Fish and Wildlife Service as potentially occurring based on range and habitat data.

Bald Eagle
Haliaeetus leucocephalus
Cassin's Finch
Haemorhous cassinii
Chestnut-backed Chickadee
Poecile rufescens rufescens
Evening Grosbeak
Coccothraustes vespertinus
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Western Screech-Owl
Megascops kennicottii cardonensis
Wrentit
Chamaea fasciata
Migratory Birds of Conservation Concern (8)

Birds of conservation concern identified by the U.S. Fish and Wildlife Service as potentially occurring based on range data. These species may warrant additional consideration under the Migratory Bird Treaty Act.

Bald Eagle
Haliaeetus leucocephalus
Cassin's Finch
Haemorhous cassinii
Chestnut-backed Chickadee
Poecile rufescens
Evening Grosbeak
Coccothraustes vespertinus
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Western Screech-Owl
Megascops kennicottii
Wrentit
Chamaea fasciata
Vegetation (5)

Composition from LANDFIRE 2024 EVT spatial analysis. Ecosystems classified per NatureServe Terrestrial Ecological Systems.

California Mixed Evergreen Forest
Tree / Conifer · 4,593 ha
GNR78.7%
California Mixed Conifer Forest
Tree / Conifer · 867 ha
GNR14.9%
GNR3.0%
California Mixed Conifer Forest
Tree / Conifer · 50 ha
GNR0.9%
G20.1%

Shasta Costa

Shasta Costa Roadless Area

Siskiyou National Forests, Oregon · 14,420 acres