Horse Creek Ridge

San Bernardino National Forest · California · 8,969 acres · RoadlessArea Rule (2001)
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Observed Species (479)

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

(11)
Allium marvinii
(5)
Nemacladus parikhiae
Acorn Woodpecker (90)
Melanerpes formicivorus
Acton's Brittlebush (11)
Encelia actoni
American Bird's-foot-trefoil (16)
Acmispon americanus
American Coot (11)
Fulica americana
American Crow (3)
Corvus brachyrhynchos
American Purple Vetch (4)
Vicia americana
American Robin (18)
Turdus migratorius
American White Pelican (14)
Pelecanus erythrorhynchos
American Wintercress (6)
Barbarea orthoceras
Anna's Hummingbird (25)
Calypte anna
Annual Honesty (5)
Lunaria annua
Annual Rabbit's-foot Grass (13)
Polypogon monspeliensis
Arroyo Willow (10)
Salix lasiolepis
Artemisia-leaf Pincushion (19)
Chaenactis artemisiifolia
Ash-throated Flycatcher (7)
Myiarchus cinerascens
Ashy Silktassel (7)
Garrya flavescens
Bald Eagle (16)
Haliaeetus leucocephalusDL
Band-tailed Pigeon (19)
Patagioenas fasciata
Bentham's Bush Lupine (11)
Lupinus albifrons
Big Sagebrush (79)
Artemisia tridentata
Big-cone Douglas-fir (30)
Pseudotsuga macrocarpa
Bigberry Manzanita (52)
Arctostaphylos glauca
Bird's-foot Cliffbrake (52)
Pellaea mucronata
Black Medic (3)
Medicago lupulina
Black Phoebe (8)
Sayornis nigricans
Black Sage (11)
Salvia mellifera
Black-headed Grosbeak (27)
Pheucticus melanocephalus
Black-throated Gray Warbler (4)
Setophaga nigrescens
Blue Field Gilia (25)
Gilia capitata
Blue-stem Beardtongue (59)
Keckiella ternata
Bobcat (7)
Lynx rufus
Bolander's Horkelia (12)
Horkelia clevelandii
Bottlebrush Squirrel-tail (5)
Elymus elymoides
Bouncing-bet (4)
Saponaria officinalis
Bracken Fern (38)
Pteridium aquilinum
Branching Scorpionweed (23)
Phacelia ramosissima
Brewer's Blackbird (13)
Euphagus cyanocephalus
Brewer's Wildmint (20)
Monardella breweri
Broadleaf Cattail (5)
Typha latifolia
Broadleaf Lupine (30)
Lupinus latifolius
Brook-pimpernel (10)
Veronica anagallis-aquatica
Brown-eyed Wolf Lichen (18)
Letharia columbiana
Bufflehead (5)
Bucephala albeola
Bulbous Bluegrass (3)
Poa bulbosa
Bull Thistle (24)
Cirsium vulgare
Bullock's Oriole (5)
Icterus bullockii
Bur Chervil (3)
Anthriscus caucalis
Bushtit (6)
Psaltriparus minimus
Bushy Spikemoss (21)
Selaginella bigelovii
California Bay (12)
Umbellularia californica
California Beardtongue (11)
Penstemon californicus
California Black Oak (120)
Quercus kelloggii
California Brickell-bush (4)
Brickellia californica
California Broomshrub (3)
Lepidospartum squamatum
California Buckwheat (186)
Eriogonum fasciculatum
California Buttercup (3)
Ranunculus californicus
California Chicory (6)
Rafinesquia californica
California Coffeeberry (77)
Frangula californica
California Creamcup (8)
Platystemon californicus
California Croton (8)
Croton californicus
California Cudweed (12)
Pseudognaphalium californicum
California Dodder (8)
Cuscuta californica
California Figwort (35)
Scrophularia californica
California Ground Squirrel (52)
Otospermophilus beecheyi
California Juniper (6)
Juniperus californica
California Kingsnake (5)
Lampropeltis californiae
California Live Oak (17)
Quercus agrifolia
California Poppy (18)
Eschscholzia californica
California Quail (25)
Callipepla californica
California Rose (153)
Rosa californica
California Sage (17)
Salvia columbariae
California Sagebrush (3)
Artemisia californica
California Scorpionweed (49)
Phacelia minor
California Scrub Jay (43)
Aphelocoma californica
California Scrub Oak (3)
Quercus berberidifolia
California Suncup (8)
Eulobus californicus
California Sunflower (3)
Helianthus californicus
California Swollenstinger Scorpion (11)
Anuroctonus pococki
California Sycamore (10)
Platanus racemosa
California Thrasher (3)
Toxostoma redivivum
California Towhee (5)
Melozone crissalis
California Treefrog (63)
Pseudacris cadaverina
California asterella (5)
Calasterella californica
California common scorpion (10)
Paruroctonus silvestrii
California evening primrose (44)
Oenothera avita
Calyx-nose Monkeyflower (12)
Erythranthe nasuta
Camp Martin Paintbrush (45)
Castilleja martini
Canada Goose (3)
Branta canadensis
Cane Cholla (10)
Cylindropuntia bernardina
Canyon Live Oak (106)
Quercus chrysolepis
Catchweed Bedstraw (4)
Galium aparine
Caterpillar Scorpionweed (4)
Phacelia cicutaria
Chalk Live-forever (27)
Dudleya pulverulenta
Chaparral Beardtongue (14)
Keckiella antirrhinoides
Chaparral Bushmallow (25)
Malacothamnus fasciculatus
Chaparral Currant (5)
Ribes malvaceum
Chaparral Gily-flower (3)
Gilia angelensis
Chaparral Snapdragon (39)
Sairocarpus coulterianus
Chaparral Trefoil (22)
Acmispon grandiflorus
Chaparral Whitethorn (158)
Ceanothus leucodermis
Cheatgrass (29)
Bromus tectorum
Chipping Sparrow (3)
Spizella passerina
Clasping-leaf Dogbane (3)
Apocynum cannabinum
Cleveland Desert-dandelion (5)
Malacothrix clevelandii
Cleveland's Lipfern (6)
Myriopteris clevelandii
Coast Horned Lizard (61)
Phrynosoma blainvillii
Coast Mountain Kingsnake (39)
Lampropeltis multifasciata
Coastal Woodfern (13)
Dryopteris arguta
Coffee Fern (24)
Pellaea andromedifolia
Common Chamise (131)
Adenostoma fasciculatum
Common Deadnettle (7)
Lamium amplexicaule
Common Eucrypta (5)
Eucrypta chrysanthemifolia
Common Feverfew (44)
Tanacetum parthenium
Common Fogfruit (14)
Phyla nodiflora
Common Goldenstar (21)
Bloomeria crocea
Common Monkeyflower (37)
Erythranthe guttata
Common Mullein (8)
Verbascum thapsus
Common Pacific Peavine (28)
Lathyrus vestitus
Common Pussy-paws (10)
Calyptridium monandrum
Common Raven (19)
Corvus corax
Common Sand-aster (93)
Corethrogyne filaginifolia
Common Side-blotched Lizard (192)
Uta stansburiana
Common Yarrow (69)
Achillea millefolium
Cooper's Hawk (5)
Astur cooperii
Cottonflower (4)
Guilleminea densa
Cougar (10)
Puma concolor
Coulter's Pine (75)
Pinus coulteri
Coville's Lipfern (16)
Myriopteris covillei
Coyote (11)
Canis latrans
Coyote Tobacco (18)
Nicotiana attenuata
Curly Dock (4)
Rumex crispus
Cursed Crowfoot (3)
Ranunculus sceleratus
Dark-eyed Junco (59)
Junco hyemalis
Davidson's Buckwheat (4)
Eriogonum davidsonii
Deergrass (22)
Muhlenbergia rigens
Dense-flower Spike-primrose (3)
Epilobium densiflorum
Desert Cottontail (26)
Sylvilagus audubonii
Desert Gilia (25)
Gilia ochroleuca
Desert Globemallow (20)
Sphaeralcea ambigua
Distant Scorpionweed (36)
Phacelia distans
Dock-leaf Smartweed (10)
Persicaria lapathifolia
Dolores Catchfly (3)
Silene verecunda
Domestic Cat (11)
Felis catus
Double-crested Cormorant (9)
Nannopterum auritum
Douglas' Wood Beauty (13)
Drymocallis glandulosa
Douglas' Wormwood (28)
Artemisia douglasiana
Dragon Wormwood (3)
Artemisia dracunculus
Drummond's Thistle (3)
Cirsium scariosum
Durango Root (15)
Datisca glomerata
Dwarf Checker-mallow (10)
Sidalcea sparsifolia
Eastwood's Manzanita (55)
Arctostaphylos glandulosa
Elegant Rockcress (27)
Boechera californica
Emery Rocktripe Lichen (7)
Umbilicaria phaea
Engelmann's Hedgehog Cactus (3)
Echinocereus engelmannii
English Plantain (5)
Plantago lanceolata
Ensatina (14)
Ensatina eschscholtzii
Eurasian Collared-Dove (6)
Streptopelia decaocto
European Starling (9)
Sturnus vulgaris
Fall Thistle (78)
Cirsium occidentale
False Daisy (3)
Eclipta prostrata
False Indigobush (6)
Amorpha fruticosa
False Monkeyflower (30)
Mimetanthe pilosa
Fendler's Meadowrue (4)
Thalictrum fendleri
Flat-spine Bursage (14)
Ambrosia acanthicarpa
Floriferous Monkeyflower (9)
Erythranthe floribunda
Four-wing Saltbush (3)
Atriplex canescens
Foxtail Brome (4)
Bromus rubens
Fragrant Sumac (35)
Rhus aromatica
Fremont Cottonwood (23)
Populus fremontii
Fremont's Goosefoot (4)
Chenopodium fremontii
Fremont's Monkeyflower (58)
Diplacus fremontii
Fringed Desert-gold (14)
Linanthus dianthiflorus
Fuller's Teasel (3)
Dipsacus fullonum
Giant Blazingstar (7)
Mentzelia laevicaulis
Giant Chainfern (7)
Woodwardia fimbriata
Giant Pinedrops (9)
Pterospora andromedea
Giant Woolstar (46)
Eriastrum densifolium
Glandular Layia (3)
Layia glandulosa
Goldback Fern (9)
Pentagramma triangularis
Golden Ear-drops (54)
Ehrendorferia chrysantha
Golden Leastdaisy (24)
Pentachaeta aurea
Golden-bowl Mariposa Lily (30)
Calochortus concolor
Golden-crowned Sparrow (5)
Zonotrichia atricapilla
Goodding's Willow (4)
Salix gooddingii
Gophersnake (39)
Pituophis catenifer
Graceful Bedstraw (4)
Galium porrigens
Granite Spiny Lizard (172)
Sceloporus orcutti
Gray Fox (4)
Urocyon cinereoargenteus
Grayleaf Skullcap (11)
Scutellaria siphocampyloides
Great Blue Heron (17)
Ardea herodias
Great Brome (7)
Bromus diandrus
Great Horned Owl (7)
Bubo virginianus
Greater Pewee (3)
Contopus pertinax
Hairy Willowherb (6)
Epilobium ciliatum
Hairy Woodpecker (19)
Leuconotopicus villosus
Heermann's Trefoil (17)
Acmispon tomentosus
Hermit Thrush (5)
Catharus guttatus
Holly-leaf Navarretia (12)
Navarretia atractyloides
Hollyleaf Cherry (22)
Prunus ilicifolia
Hollyleaf Redberry (60)
Rhamnus ilicifolia
Hooker's Evening-primrose (36)
Oenothera elata
House Finch (29)
Haemorhous mexicanus
Humboldt Lily (3)
Lilium humboldtii
Hummingbird-trumpet (136)
Epilobium canum
Hyaline Liverwort (4)
Clevea hyalina
Imbricate Scorpionweed (28)
Phacelia imbricata
Incense Cedar (97)
Calocedrus decurrens
Indian Sweetclover (5)
Melilotus indicus
Interior Bush Lupine (52)
Lupinus excubitus
Interior Live Oak (97)
Quercus wislizeni
Island False Bindweed (5)
Calystegia macrostegia
Jacumba Milkvetch (80)
Astragalus douglasii
Jeffrey's Pine (26)
Pinus jeffreyi
Johnson's Tufted Jumping Spider (3)
Phidippus johnsoni
Kaweah River Bush-monkeyflower (69)
Diplacus calycinus
Kellogg's Tarweed (3)
Deinandra kelloggii
Laguna Mountains Streptanthus (4)
Streptanthus bernardinus
Large-bract Vervain (9)
Verbena bracteata
Large-flower Cat's-eye (22)
Cryptantha intermedia
Large-flower Collomia (8)
Collomia grandiflora
Largeleaf Periwinkle (20)
Vinca major
Largemouth Bass (5)
Micropterus nigricans
Lawrence's Goldfinch (16)
Spinus lawrencei
Lazuli Bunting (3)
Passerina amoena
Leafy Fleabane (55)
Erigeron foliosus
Lemmon's Linanthus (30)
Leptosiphon lemmonii
Lemon Lily (175)
Lilium parryi
Lesser Goldfinch (11)
Spinus psaltria
Lewis's Woodpecker (13)
Melanerpes lewis
Lindley's Lupine (44)
Lupinus bicolor
Loggerhead Shrike (3)
Lanius ludovicianus
Long-beak Heron's-bill (6)
Erodium botrys
Long-flower Nemacladus (14)
Nemacladus longiflorus
Longstem Buckwheat (8)
Eriogonum elongatum
Mallard (69)
Anas platyrhynchos
Maltese Star-thistle (10)
Centaurea melitensis
Mediterranean Mustard (33)
Hirschfeldia incana
Menzies' Baby-blue-eyes (52)
Nemophila menziesii
Merlin (3)
Falco columbarius
Mexican Catchfly (21)
Silene laciniata
Mexican Manzanita (108)
Arctostaphylos pungens
Miner's-lettuce (13)
Claytonia perfoliata
Mohave Lupine (3)
Lupinus sparsiflorus
Mohave Tarplant (26)
Deinandra mohavensis
Mojave Desert Whitethorn (19)
Ceanothus pauciflorus
Mojave Yucca (14)
Yucca schidigera
Mountain Chickadee (46)
Poecile gambeli
Mountain Quail (12)
Oreortyx pictus
Mountain Red-root Cryptantha (5)
Eremocarya lepida
Mountain-mahogany (145)
Cercocarpus betuloides
Mourning Dove (66)
Zenaida macroura
Mule Deer (39)
Odocoileus hemionus
Munite Prickly-poppy (18)
Argemone munita
Muscovy Duck (8)
Cairina moschata
Naked Buckwheat (25)
Eriogonum nudum
Narrowleaf Bedstraw (38)
Galium angustifolium
Narrowleaf Milkweed (52)
Asclepias fascicularis
Narrowleaf Swordfern (5)
Polystichum imbricans
Nipomo Mesa Lupine (67)
Lupinus concinnus
Northern Flicker (42)
Colaptes auratus
Nuttall's Annual Lupine (8)
Lupinus truncatus
Nuttall's Woodpecker (16)
Dryobates nuttallii
Oak Titmouse (14)
Baeolophus inornatus
Olive-sided Flycatcher (8)
Contopus cooperi
Oracle Oak (32)
Quercus × morehus
Orobus-seed Liverwort (3)
Targionia hypophylla
Osprey (7)
Pandion haliaetus
Pacific Grove Clover (8)
Trifolium obtusiflorum
Pacific Mistletoe (38)
Phoradendron villosum
Pacific Stonecrop (7)
Sedum spathulifolium
Pacific Treefrog (19)
Pseudacris regilla
Palmer's Mariposa Lily (79)
Calochortus palmeri
Palmer's Whitethorn (6)
Ceanothus palmeri
Palomar Monkeyflower (20)
Erythranthe diffusa
Panamint Live-forever (43)
Dudleya saxosa
Panicled Willowherb (12)
Epilobium brachycarpum
Parish's Bluecurls (33)
Trichostema parishii
Parish's Goldenweed (66)
Ericameria parishii
Parish's Tauschia (6)
Tauschia parishii
Parry's Green-gentian (4)
Frasera parryi
Payson's Wild Cabbage (6)
Caulanthus simulans
Peninsular Onion (7)
Allium peninsulare
Perennial Pea (33)
Lathyrus latifolius
Perennial Ragweed (3)
Ambrosia psilostachya
Phainopepla (8)
Phainopepla nitens
Phloxleaf Bedstraw (4)
Galium andrewsii
Pin Clover (64)
Erodium cicutarium
Pine Goldenweed (9)
Ericameria pinifolia
Pine Violet (15)
Viola purpurea
Pineapple-weed Chamomile (17)
Matricaria discoidea
Pink Alumroot (12)
Heuchera rubescens
Pink-bract Manzanita (132)
Arctostaphylos pringlei
Pinkray Fremont's-gold (9)
Syntrichopappus lemmonii
Plain Mariposa Lily (4)
Calochortus invenustus
Plummer's Mariposa Lily (20)
Calochortus plummerae
Pointed Cat's-eye (3)
Cryptantha muricata
Pointed Rush (6)
Juncus oxymeris
Polished Willow (8)
Salix laevigata
Ponderosa Pine (4)
Pinus ponderosa
Poodle-dog Bush (14)
Eriodictyon parryi
Poor-man's Pepper-grass (6)
Lepidium virginicum
Prickly Lettuce (8)
Lactuca serriola
Pumice Hulsea (64)
Hulsea vestita
Puncture-vine (6)
Tribulus terrestris
Purple Finch (7)
Haemorhous purpureus
Purple Nightshade (6)
Solanum xanti
Pygmy Nuthatch (45)
Sitta pygmaea
Rainbow Trout or Steelhead (9)
Oncorhynchus mykiss
Ramona Spineflower (4)
Chorizanthe leptotheca
Red Diamond Rattlesnake (5)
Crotalus ruber
Red Owl's-clover (57)
Castilleja exserta
Red-breasted Sapsucker (20)
Sphyrapicus ruber
Red-naped Sapsucker (5)
Sphyrapicus nuchalis
Red-ray Hulsea (23)
Hulsea heterochroma
Red-shouldered Hawk (8)
Buteo lineatus
Red-stem Springbeauty (4)
Claytonia rubra
Red-tailed Hawk (39)
Buteo jamaicensis
Red-winged Blackbird (4)
Agelaius phoeniceus
Ribbon-wood (122)
Adenostoma sparsifolium
Ring-necked Duck (3)
Aythya collaris
Rose Clover (6)
Trifolium hirtum
Rosy Boa (5)
Lichanura orcutti
Rough Hedge-nettle (11)
Stachys rigida
Round-hood Milkweed (53)
Asclepias californica
Rubber Rabbitbrush (9)
Ericameria nauseosa
Ruby-crowned Kinglet (8)
Corthylio calendula
Sacapellote (14)
Acourtia microcephala
Sacred Thorn-apple (39)
Datura wrightii
Salt-cedar (5)
Tamarix ramosissima
San Bernardino Larkspur (6)
Delphinium parryi
San Bernardino Suncup (4)
Camissoniopsis confusa
San Francisco Broomrape (13)
Aphyllon franciscanum
San Francisco Woodland-star (3)
Lithophragma affine
San Gabriel Beardtongue (4)
Penstemon labrosus
San Jacinto Bluecurls (17)
Trichostema austromontanum
San Jacinto Buckwheat (3)
Eriogonum apiculatum
Sandy-soil Suncup (12)
Camissonia strigulosa
Santa Barbara Honeysuckle (134)
Lonicera subspicata
Santa Cruz Suncup (12)
Camissoniopsis hirtella
Sapphire Woolstar (33)
Eriastrum sapphirinum
Say's Phoebe (4)
Sayornis saya
Scarlet Bugler (176)
Penstemon centranthifolius
Scarlet Monkeyflower (53)
Erythranthe cardinalis
Schott's Sedge (7)
Carex schottii
Seaside Heliotrope (35)
Heliotropium curassavicum
Sedge-leaf Whitethorn (25)
Ceanothus cuneatus
Sessile-flower False Goldenaster (6)
Heterotheca sessiliflora
Shaggy-hair Alumroot (20)
Heuchera hirsutissima
Shoreline Wolf Spider (5)
Arctosa littoralis
Short-lobe Scorpionweed (33)
Phacelia brachyloba
Showy Beardtongue (180)
Penstemon spectabilis
Sierra Currant (7)
Ribes nevadense
Sierra Gooseberry (12)
Ribes roezlii
Skunkbush (4)
Rhus trilobata
Slender Woolly Buckwheat (15)
Eriogonum gracile
Small Skeletonplant (29)
Stephanomeria exigua
Small-flower Fiddleneck (3)
Amsinckia menziesii
Small-flower Indian-paintbrush (24)
Castilleja minor
Small-flower Meconella (3)
Meconella denticulata
Small-head Clover (7)
Trifolium microcephalum
Smooth Scouring-rush (10)
Equisetum laevigatum
Snowplant (59)
Sarcodes sanguinea
Soft Brome (6)
Bromus hordeaceus
Soft Rush (3)
Juncus effusus
Sonoran Desert Centipede (6)
Scolopendra polymorpha
Southern Alligator Lizard (10)
Elgaria multicarinata
Southern Blue-eyed Mary (99)
Collinsia concolor
Southern Bluecup (4)
Githopsis diffusa
Southern Bush-monkeyflower (6)
Diplacus longiflorus
Southern Sagebrush Lizard (61)
Sceloporus vandenburgianus
Southern Silktassel (15)
Garrya veatchii
Southern Tauschia (33)
Tauschia arguta
Spearleaf False Dandelion (14)
Agoseris retrorsa
Splendid Mariposa Lily (8)
Calochortus splendens
Spotted Coralroot (5)
Corallorhiza maculata
Spotted Towhee (35)
Pipilo maculatus
Stebbins' Hedgenettle (13)
Stachys stebbinsii
Steller's Jay (182)
Cyanocitta stelleri
Sticky False Gilia (14)
Allophyllum glutinosum
Sticky Sand-verbena (97)
Abronia villosa
Stiff Birds-beak (53)
Cordylanthus rigidus
Stinging Lupine (30)
Lupinus hirsutissimus
Stream Trefoil (30)
Hosackia oblongifolia
Streambank Springbeauty (22)
Claytonia parviflora
Strigose Trefoil (36)
Acmispon strigosus
Striped Racer (12)
Masticophis lateralis
Sugar Pine (19)
Pinus lambertiana
Sugar Sumac (10)
Rhus ovata
Sulphur Shelf (4)
Laetiporus gilbertsonii
Summer Lupine (3)
Lupinus formosus
Sweetbush (4)
Bebbia juncea
Tahquitz Ivesia (6)
Ivesia callida
Tall Flatsedge (3)
Cyperus eragrostis
Tall Tumble-mustard (11)
Sisymbrium altissimum
Tansy Scorpionweed (3)
Phacelia tanacetifolia
Telegraphweed (15)
Heterotheca grandiflora
Thickleaf Bird's-foot-trefoil (8)
Hosackia crassifolia
Thickleaf Yerba Santa (127)
Eriodictyon crassifolium
Thimbleberry (9)
Rubus parviflorus
Three-lobe Oxytheca (11)
Sidotheca trilobata
Three-nerve Goldenrod (48)
Solidago velutina
Thyme-leaf Broomspurge (6)
Euphorbia serpillifolia
Tiger Whiptail (44)
Aspidoscelis tigris
Tongue Clarkia (23)
Clarkia rhomboidea
Tournefort's Mustard (3)
Brassica tournefortii
Townsend's Solitaire (4)
Myadestes townsendi
Toyon (12)
Heteromeles arbutifolia
Tree Poppy (53)
Dendromecon rigida
Tree Tobacco (22)
Nicotiana glauca
Tricolored Blackbird (10)
Agelaius tricolor
Turkey Vulture (37)
Cathartes aura
Twisted Suncup (8)
Camissoniopsis bistorta
Two-striped Gartersnake (14)
Thamnophis hammondii
Utah Serviceberry (4)
Amelanchier utahensis
Valley Lessingia (25)
Lessingia glandulifera
Veiled Polypore (17)
Cryptoporus volvatus
Violet-green Swallow (4)
Tachycineta thalassina
Virgate Wire-lettuce (12)
Stephanomeria virgata
Wallace's Wooly-daisy (19)
Eriophyllum wallacei
Wavyleaf Indian-paintbrush (3)
Castilleja applegatei
Wedge-leaf Goldenweed (4)
Ericameria cuneata
Western Azalea (14)
Rhododendron occidentale
Western Bird's-foot-trefoil (41)
Acmispon glaber
Western Bluebird (66)
Sialia mexicana
Western Bush Bindweed (10)
Calystegia occidentalis
Western Columbine (35)
Aquilegia formosa
Western Dwarf-mistletoe (9)
Arceuthobium campylopodum
Western Fence Lizard (358)
Sceloporus occidentalis
Western Gray Squirrel (137)
Sciurus griseus
Western Kingbird (3)
Tyrannus verticalis
Western Marsh Cudweed (4)
Gnaphalium palustre
Western Poison-oak (16)
Toxicodendron diversilobum
Western Rattlesnake (35)
Crotalus oreganus
Western Skink (8)
Plestiodon skiltonianus
Western Spadefoot (5)
Spea hammondiiProposed Threatened
Western St. John's-wort (6)
Hypericum scouleri
Western Strawberry-bush (10)
Euonymus occidentalis
Western Tanager (4)
Piranga ludoviciana
Western Toad (30)
Anaxyrus boreas
Western Wallflower (23)
Erysimum capitatum
Western Wood-Pewee (5)
Contopus sordidulus
White Alder (15)
Alnus rhombifolia
White Brittlebush (15)
Encelia farinosa
White Fir (24)
Abies concolor
White Sage (33)
Salvia apiana
White Sagebrush (5)
Artemisia ludoviciana
White Sweetclover (4)
Melilotus albus
White-breasted Nuthatch (30)
Sitta carolinensis
White-crowned Sparrow (9)
Zonotrichia leucophrys
White-headed Woodpecker (31)
Leuconotopicus albolarvatus
White-margin Broomspurge (11)
Euphorbia albomarginata
White-margin Oxytheca (25)
Sidotheca emarginata
Wide-throat Yellow Monkeyflower (62)
Diplacus brevipes
Williamson's Sapsucker (6)
Sphyrapicus thyroideus
Willow Dock (4)
Rumex salicifolius
Willowleaf False Willow (9)
Baccharis salicifolia
Winecup Clarkia (10)
Clarkia purpurea
Wolf Lichen (3)
Letharia vulpina
Wood Spurge (3)
Euphorbia lurida
Woodland Strawberry (15)
Fragaria vesca
Woolly Angelica (4)
Angelica tomentosa
Woolly Indian-paintbrush (25)
Castilleja foliolosa
Woolly Plantain (5)
Plantago patagonica
Woolly-pod Milkweed (165)
Asclepias eriocarpa
Wright's Buckwheat (26)
Eriogonum wrightii
Yellow Pincushion (27)
Chaenactis glabriuscula
Yellow Whispering-bells (10)
Emmenanthe penduliflora
Yellow-daisy Tidy-tips (6)
Layia platyglossa
Yellow-rumped Warbler (7)
Setophaga coronata
Yellow-yarrow (137)
Eriophyllum confertiflorum
Zigzag Larkspur (6)
Delphinium patens
a fungus (5)
Ustilago bullata
a fungus (4)
Neolentinus ponderosus
blue dicks (60)
Dipterostemon capitatus
splendid woodland-gilia (12)
Saltugilia splendens
stinknet (17)
Oncosiphon pilulifer
turkey mullein (9)
Croton setiger
Federally Listed Species (14)

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.

Arroyo Toad
Anaxyrus californicusEndangered
Coastal California Gnatcatcher
Polioptila californica californicaThreatened
Least Bell's Vireo
Vireo bellii pusillusEndangered
San Bernardino Kangaroo Rat
Dipodomys merriami parvusEndangered
Slender-horned Spineflower
Dodecahema leptocerasEndangered
Southwestern Willow Flycatcher
Empidonax traillii extimusEndangered
California Spotted Owl
Strix occidentalis occidentalis
Monarch
Danaus plexippusProposed Threatened
Quino checkerspot butterfly
Euphydryas editha quino (=E. e. wrighti)
Santa Ana Speckled Dace
Rhinichthys gabrielinoProposed Threatened
Southwestern Pond Turtle
Actinemys pallidaProposed Threatened
Stephens' kangaroo rat
Dipodomys stephensi (incl. D. cascus)
Western Spadefoot
Spea hammondiiProposed Threatened
Other Species of Concern (22)

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

Bald Eagle
Haliaeetus leucocephalus
Belding's Savannah Sparrow
Passerculus sandwichensis beldingi
Black-chinned Sparrow
Spizella atrogularis
Bullock's Oriole
Icterus bullockii
California Gull
Larus californicus
California Thrasher
Toxostoma redivivum
Cassin's Finch
Haemorhous cassinii
Channel Island Song Sparrow
Melospiza melodia graminea
Clark's Grebe
Aechmophorus clarkii
Golden Eagle
Aquila chrysaetos
Lawrence's Goldfinch
Spinus lawrencei
Northern Harrier
Circus hudsonius
Nuttall's Woodpecker
Dryobates nuttallii
Oak Titmouse
Baeolophus inornatus
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Saltmarsh Common Yellowthroat
Geothlypis trichas sinuosa
Tricolored Blackbird
Agelaius tricolor
Western Grebe
Aechmophorus occidentalis
Western Screech-Owl
Megascops kennicottii cardonensis
White-headed Woodpecker
Dryobates albolarvatus gravirostris
Wrentit
Chamaea fasciata
Migratory Birds of Conservation Concern (19)

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
Black-chinned Sparrow
Spizella atrogularis
Bullock's Oriole
Icterus bullockii
California Gull
Larus californicus
California Thrasher
Toxostoma redivivum
Cassin's Finch
Haemorhous cassinii
Clark's Grebe
Aechmophorus clarkii
Common Yellowthroat
Geothlypis trichas
Golden Eagle
Aquila chrysaetos
Lawrence's Goldfinch
Spinus lawrencei
Oak Titmouse
Baeolophus inornatus
Olive-sided Flycatcher
Contopus cooperi
Pinyon Jay
Gymnorhinus cyanocephalus
Savannah Sparrow
Passerculus sandwichensis
Song Sparrow
Melospiza melodia
Tricolored Blackbird
Agelaius tricolor
Western Grebe
Aechmophorus occidentalis
Western Screech-Owl
Megascops kennicottii
Wrentit
Chamaea fasciata
Vegetation (9)

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

California Chaparral
Shrub / Shrubland · 2,110 ha
GNR58.1%
GNR14.1%
GNR10.3%
California Ruderal Scrub
Shrub / Exotic Tree-Shrub · 87 ha
2.4%
Northern California Coastal Scrub
Shrub / Shrubland · 80 ha
GNR2.2%
GNR1.6%
Southern California Coast Ranges Cliff and Canyon
Sparse / Sparsely Vegetated · 30 ha
0.8%

Horse Creek Ridge

Horse Creek Ridge Roadless Area

San Bernardino National Forest, California · 8,969 acres