Elkhorn

Willamette National Forest · Oregon · 9,380 acres · RoadlessArea Rule (2001)
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Observed Species (241)

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

Acorn Woodpecker (2)
Melanerpes formicivorus
Aleutian Maidenhair Fern (4)
Adiantum aleuticum
American False Hellebore (1)
Veratrum viride
American Pika (1)
Ochotona princeps
American Rockbrake (1)
Cryptogramma acrostichoides
American Trailplant (1)
Adenocaulon bicolor
Anderson's Holly Fern (1)
Polystichum andersonii
Angel Wings (1)
Pleurocybella porrigens
Arctic Sweet-colt's-foot (1)
Petasites frigidus
Band-tailed Pigeon (1)
Patagioenas fasciata
Barred Owl (2)
Strix varia
Beaked Hazelnut (1)
Corylus cornuta
Bigleaf Maple (3)
Acer macrophyllum
Black-headed Grosbeak (5)
Pheucticus melanocephalus
Blackfoot Paxillus (1)
Tapinella atrotomentosa
Bleeding Mycena (1)
Mycena haematopus
Blue Field Gilia (2)
Gilia capitata
Bouncing-bet (1)
Saponaria officinalis
Bracken Fern (3)
Pteridium aquilinum
Bristly Manzanita (1)
Arctostaphylos columbiana
Brown Felt Blight (1)
Herpotrichia juniperi
Brown-headed Cowbird (1)
Molothrus ater
Bull Thistle (2)
Cirsium vulgare
Bullock's Oriole (1)
Icterus bullockii
Cabbage Lung Lichen (1)
Lobaria linita
California Scurfpea (3)
Rupertia physodes
Candy Lichen (2)
Icmadophila ericetorum
Cascade Beardtongue (3)
Penstemon serrulatus
Cascade Torrent Salamander (3)
Rhyacotriton cascadaeUR
Cascara False Buckthorn (2)
Frangula purshiana
Cat's Tail Moss (1)
Pseudisothecium stoloniferum
Cedar Waxwing (2)
Bombycilla cedrorum
Chickweed Monkeyflower (8)
Erythranthe alsinoides
Chicory (1)
Cichorium intybus
Clackamas Iris (1)
Iris tenuis
Cliff Beardtongue (1)
Penstemon rupicola
Climbing Nightshade (1)
Solanum dulcamara
Clouded Salamander (1)
Aneides ferreus
Coast Range Lomatium (1)
Lomatium martindalei
Coastal Brookfoam (2)
Boykinia occidentalis
Coastal Giant Salamander (2)
Dicamptodon tenebrosus
Coastal Hedge-nettle (3)
Stachys chamissonis
Coastal Tailed Frog (3)
Ascaphus truei
Columbian Lily (5)
Lilium columbianum
Columbian Windflower (3)
Anemonastrum deltoideum
Common Camassia (1)
Camassia quamash
Common Comfrey (1)
Symphytum officinale
Common Corncockle (1)
Agrostemma githago
Common Gartersnake (1)
Thamnophis sirtalis
Common Goat's-beard (2)
Aruncus dioicus
Common Merganser (1)
Mergus merganser
Common Mullein (1)
Verbascum thapsus
Common Nipplewort (1)
Lapsana communis
Common Speedwell (1)
Veronica officinalis
Common St. John's-wort (7)
Hypericum perforatum
Common Woolly-sunflower (8)
Eriophyllum lanatum
Creeping Thistle (1)
Cirsium arvense
Dame's Rocket (1)
Hesperis matronalis
Dark-eyed Junco (2)
Junco hyemalis
Deer Fern (4)
Struthiopteris spicant
Deptford Pink (1)
Dianthus armeria
Devil's Matchstick (2)
Pilophorus acicularis
Disjunct Lung Lichen (1)
Pseudocyphellaria mallota
Dog Vomit Slime Mold (1)
Fuligo septica
Douglas' Spiraea (3)
Spiraea douglasii
Douglas-fir (5)
Pseudotsuga menziesii
Dunn's Salamander (1)
Plethodon dunni
Dyer's Polypore (1)
Phaeolus schweinitzii
Eastern Kingbird (1)
Tyrannus tyrannus
Emery Rocktripe Lichen (1)
Umbilicaria phaea
Evergreen Blackberry (3)
Rubus laciniatus
Fairy Slipper (3)
Calypso bulbosa
False Chanterelle (1)
Hygrophoropsis aurantiaca
False Lily-of-the-Valley (1)
Maianthemum dilatatum
Field Pennycress (1)
Thlaspi arvense
Fireweed (12)
Chamaenerion angustifolium
Fly Amanita (1)
Amanita muscaria
Garden Bird's-foot-trefoil (1)
Lotus corniculatus
Ghost Pipe (1)
Monotropa uniflora
Giant Fawnlily (3)
Erythronium oregonum
Giant Horsetail (1)
Equisetum telmateia
Giant Rattlesnake-plantain (2)
Goodyera oblongifolia
Glacier Fawnlily (5)
Erythronium montanum
Golden Chinquapin (6)
Chrysolepis chrysophylla
Golden-crowned Kinglet (1)
Regulus satrapa
Gorman's Aster (2)
Doellingeria gormanii
Gray Lung Lichen (1)
Lobaria hallii
Gray's anemone (1)
Anemonoides grayi
Great Northern Aster (1)
Canadanthus modestus
Greater Red Indian-paintbrush (1)
Castilleja miniata
Hairy Woodpecker (1)
Leuconotopicus villosus
Hairy-fruit Smooth Dewberry (3)
Rubus lasiococcus
Harsh Indian-paintbrush (4)
Castilleja hispida
Herb-Robert (1)
Geranium robertianum
Kenilworth Ivy (1)
Cymbalaria muralis
Lace Foamflower (1)
Tiarella trifoliata
Lace Lipfern (2)
Myriopteris gracillima
Late Fall Oyster (1)
Sarcomyxa serotina
Leafy Lousewort (2)
Pedicularis racemosa
Lettuce Lichen (6)
Lobaria oregana
Lewis' Mock Orange (1)
Philadelphus lewisii
Lewis's Woodpecker (1)
Melanerpes lewis
Lipstick Powderhorn Lichen (1)
Cladonia macilenta
Littleleaf Miner's-lettuce (4)
Montia parvifolia
Lobster Mushroom (2)
Hypomyces lactifluorum
Longleaf Oregon-grape (7)
Berberis nervosa
Longtail Wild Ginger (1)
Asarum caudatum
Lung Lichen (1)
Lobaria pulmonaria
Majestic Amanita (2)
Amanita augusta
Mannered Monkeyflower (1)
Erythranthe decora
Menzies' Wintergreen (1)
Chimaphila menziesii
Mertens' Coralroot (1)
Corallorhiza mertensiana
Miner's-lettuce (1)
Claytonia perfoliata
Modest Whipple-vine (2)
Whipplea modesta
Mountain Bootstrap Lichen (1)
Cornicularia normoerica
Mountain Brookfoam (1)
Boykinia major
Nelson's Desert-parsley (3)
Lomatium hallii
Nipple-seed Plantain (2)
Plantago major
Northern Pygmy-Owl (1)
Glaucidium gnoma
Northern Red Belt (1)
Fomitopsis mounceae
Northwestern Gartersnake (1)
Thamnophis ordinoides
Nuttall's Toothwort (1)
Cardamine nuttallii
Oceanspray (5)
Holodiscus discolor
Orange Honeysuckle (1)
Lonicera ciliosa
Orange Peel Fungus (1)
Aleuria aurantia
Oregon Beaked Moss (1)
Kindbergia oregana
Oregon Boxleaf (2)
Paxistima myrsinites
Oregon Goldthread (1)
Coptis laciniata
Oregon Slender Salamander (1)
Batrachoseps wrighti
Oregon Stonecrop (1)
Sedum oreganum
Oregon Woodsorrel (1)
Oxalis oregana
Oso-berry (2)
Oemleria cerasiformis
Oval-leaf Huckleberry (1)
Vaccinium ovalifolium
Oxeye Daisy (2)
Leucanthemum vulgare
Pacific Bananaslug (4)
Ariolimax columbianus
Pacific Bleedingheart (8)
Dicentra formosa
Pacific Dogwood (1)
Cornus nuttallii
Pacific Fuzzwort (1)
Ptilidium californicum
Pacific Rhododendron (10)
Rhododendron macrophyllum
Pacific Stonecrop (3)
Sedum spathulifolium
Pacific Treefrog (1)
Pseudacris regilla
Pacific Yew (3)
Taxus brevifolia
Pale Oyster (1)
Pleurotus pulmonarius
Pearly Everlasting (13)
Anaphalis margaritacea
Pine Siskin (2)
Spinus pinus
Poison Larkspur (1)
Delphinium trolliifolium
Purple Cortinarius (1)
Cortinarius violaceus
Purple Finch (1)
Haemorhous purpureus
Purple Foxglove (4)
Digitalis purpurea
Purplish Amanita (1)
Amanita porphyria
Rabbitfoot Clover (1)
Trifolium arvense
Red Clover (1)
Trifolium pratense
Red Elderberry (1)
Sambucus racemosa
Red Huckleberry (3)
Vaccinium parvifolium
Redwood Violet (2)
Viola sempervirens
Rose Campion (1)
Silene coronaria
Rose Meadowsweet (3)
Spiraea splendens
Rough-skinned Newt (5)
Taricha granulosa
Roughleaf Aster (1)
Eurybia radulina
Rufous Hummingbird (1)
Selasphorus rufus
Running Clubmoss (1)
Lycopodium clavatum
Rusty-hair Saxifrage (1)
Micranthes ferruginea
Salal (10)
Gaultheria shallon
Salmonberry (3)
Rubus spectabilis
Saskatoon (1)
Amelanchier alnifolia
Scarletback Taildropper Slug (1)
Prophysaon vanattae
Scotch Broom (2)
Cytisus scoparius
Scouler's Bellflower (2)
Campanula scouleri
Self-heal (1)
Prunella vulgaris
Shining Crane's-bill (1)
Geranium lucidum
Short-stem Russula (1)
Russula brevipes
Signal Crayfish (1)
Pacifastacus leniusculus
Silverleaf Scorpionweed (1)
Phacelia hastata
Silvery Hairgrass (1)
Aira caryophyllea
Smith's Fairybells (2)
Prosartes smithii
Solomon's-plume (5)
Maianthemum racemosum
Sooty Grouse (3)
Dendragapus fuliginosus
Spotted Cat's-ear (2)
Hypochaeris radicata
Spotted Knapweed (1)
Centaurea stoebe
Spring Vetch (1)
Vicia sativa
Square-twigged Huckleberry (1)
Vaccinium membranaceum
Starflower Solomon's-plume (1)
Maianthemum stellatum
Subalpine Mariposa Lily (3)
Calochortus subalpinus
Subarctic Ladyfern (2)
Athyrium filix-femina
Thimbleberry (7)
Rubus parviflorus
Tobacco Ceanothus (6)
Ceanothus velutinus
Toughleaf Iris (4)
Iris tenax
Twinflower (2)
Linnaea borealis
Two-horned Pincerwort (1)
Cephalozia bicuspidata
Umbellate Bastard Toad-flax (2)
Comandra umbellata
Vanilla-leaf (1)
Achlys triphylla
Varied-leaf Collomia (1)
Collomia heterophylla
Vine Maple (4)
Acer circinatum
Violet-green Swallow (1)
Tachycineta thalassina
Wall-lettuce (3)
Mycelis muralis
Washington Lily (4)
Lilium washingtonianum
Water Puffball (1)
Lycoperdon perlatum
Western Bluebird (1)
Sialia mexicana
Western Columbine (4)
Aquilegia formosa
Western Dwarf Dogwood (4)
Cornus unalaschkensis
Western Hemlock (7)
Tsuga heterophylla
Western Poison-oak (1)
Toxicodendron diversilobum
Western Red-cedar (3)
Thuja plicata
Western Saxifrage (1)
Micranthes occidentalis
Western Swordfern (4)
Polystichum munitum
Western Trillium (4)
Trillium ovatum
Western Turkeybeard (12)
Xerophyllum tenax
White Moth Mullein (3)
Verbascum blattaria
White-crested Coral Fungus (2)
Clavulina coralloides
White-crowned Sparrow (1)
Zonotrichia leucophrys
White-flower Hawkweed (1)
Hieracium albiflorum
White-stem Raspberry (4)
Rubus leucodermis
Wild Carrot (1)
Daucus carota
Winter Chanterelle (1)
Craterellus tubaeformis
Winter Currant (1)
Ribes sanguineum
Winter Vetch (1)
Vicia villosa
Wood Rose (1)
Rosa gymnocarpa
Woodland Beardtongue (5)
Nothochelone nemorosa
Woodland Groundsel (3)
Senecio sylvaticus
Yellow Skunk Cabbage (1)
Lysichiton americanus
Yellow-spotted Millipede (5)
Harpaphe haydeniana
a fungus (1)
Panellus stipticus
a fungus (1)
Aureoboletus mirabilis
a fungus (1)
Rhytisma punctatum
a fungus (1)
Mycena amicta
a fungus (1)
Gomphidius smithii
a fungus (1)
Ganoderma oregonense
a fungus (1)
Craterellus calicornucopioides
a fungus (1)
Laetiporus conifericola
a fungus (1)
Lepiota rubrotinctoides
a fungus (1)
Clavulina rugosa
a fungus (1)
Chroogomphus tomentosus
a fungus (1)
Chlorociboria aeruginosa
a fungus (1)
Cantharellus formosus
a fungus (1)
Marasmiellus candidus
a fungus (1)
Merulius tremellosus
a fungus (1)
Gomphus clavatus
hybrid knapweed (1)
Centaurea × gerstlaueri
Federally Listed Species (6)

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.

Northern Spotted Owl
Strix occidentalis caurinaThreatened
Gray Wolf
Canis lupus
Monarch
Danaus plexippusProposed Threatened
North American Wolverine
Gulo gulo luscus
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Other Species of Concern (11)

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

Bald Eagle
Haliaeetus leucocephalus
California Gull
Larus californicus
Cassin's Finch
Haemorhous cassinii
Chestnut-backed Chickadee
Poecile rufescens rufescens
Clark's Grebe
Aechmophorus clarkii
Evening Grosbeak
Coccothraustes vespertinus
Olive-sided Flycatcher
Contopus cooperi
Oregon Vesper Sparrow
Pooecetes gramineus affinis
Rufous Hummingbird
Selasphorus rufus
Western Grebe
Aechmophorus occidentalis
Western Screech-Owl
Megascops kennicottii cardonensis
Migratory Birds of Conservation Concern (11)

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
California Gull
Larus californicus
Cassin's Finch
Haemorhous cassinii
Chestnut-backed Chickadee
Poecile rufescens
Clark's Grebe
Aechmophorus clarkii
Evening Grosbeak
Coccothraustes vespertinus
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Vesper Sparrow
Pooecetes gramineus
Western Grebe
Aechmophorus occidentalis
Western Screech-Owl
Megascops kennicottii
Vegetation (8)

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

Pacific Northwest Mountain Shrubland
Shrub / Shrubland · 1,140 ha
GNR30.0%
Pacific Northwest Mountain Grassland
Herb / Grassland · 1,100 ha
GNR29.0%
Southern Vancouverian Lowland Ruderal Grassland
Herb / Exotic Herbaceous · 1,091 ha
28.8%
GNR2.7%
GNR2.6%
GNR2.4%
Southern Vancouverian Lowland Ruderal Shrubland
Shrub / Exotic Tree-Shrub · 68 ha
1.8%
GNR1.2%

Elkhorn

Elkhorn Roadless Area

Willamette National Forest, Oregon · 9,380 acres