Grindstone

Mendocino National Forest · California · 26,031 acres · RoadlessArea Rule (2001)
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Observed Species (347)

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

(1)
Deconica caespitosa
Adobe Lily (1)
Fritillaria pluriflora
Allen's Hummingbird (1)
Selasphorus sasin
American Bistort (8)
Bistorta bistortoides
American Black Bear (10)
Ursus americanus
American Purple Vetch (2)
Vicia americana
American Robin (2)
Turdus migratorius
American Speedwell (2)
Veronica americana
American Wintercress (1)
Barbarea orthoceras
Anna's Hummingbird (1)
Calypte anna
Annual False Dandelion (1)
Agoseris heterophylla
Anthony Peak Lupine (1)
Lupinus antoninus
Aquatic Gartersnake (2)
Thamnophis atratus
Arrowleaf Buckwheat (4)
Eriogonum compositum
Bald Eagle (1)
Haliaeetus leucocephalusDL
Band-tailed Pigeon (1)
Patagioenas fasciata
Beavertail Mariposa Lily (9)
Calochortus coeruleus
Bell's Sparrow (1)
Artemisiospiza belli
Bewick's Wren (1)
Thryomanes bewickii
Big Manzanita (2)
Arctostaphylos manzanita
Bigleaf Maple (2)
Acer macrophyllum
Bird's-foot Cliffbrake (3)
Pellaea mucronata
Bitter Cherry (1)
Prunus emarginata
Black-headed Grosbeak (1)
Pheucticus melanocephalus
Black-tailed Jackrabbit (4)
Lepus californicus
Blue Field Gilia (6)
Gilia capitata
Blue-gray Gnatcatcher (1)
Polioptila caerulea
Bobcat (2)
Lynx rufus
Bottlebrush Squirrel-tail (1)
Elymus elymoides
Bowl-tube Iris (1)
Iris macrosiphon
Bracken Fern (2)
Pteridium aquilinum
Brewer's Monkeyflower (6)
Erythranthe breweri
Brewer's Peavine (3)
Lathyrus sulphureus
Brewer's Rockcress (2)
Boechera breweri
Broad Wrinkle Lichen (1)
Tuckermanopsis platyphylla
Broadleaf Cattail (1)
Typha latifolia
Brown Creeper (2)
Certhia americana
Brown-eyed Wolf Lichen (1)
Letharia columbiana
Brown-headed Cowbird (1)
Molothrus ater
Bulbous Woodland-star (4)
Lithophragma glabrum
Bull Thistle (2)
Cirsium vulgare
California Bay (1)
Umbellularia californica
California Black Oak (7)
Quercus kelloggii
California Buckeye (2)
Aesculus californica
California Chicory (1)
Rafinesquia californica
California Coffeeberry (1)
Frangula californica
California Desert-parsley (1)
Lomatium californicum
California Fawnlily (3)
Erythronium californicum
California Figwort (1)
Scrophularia californica
California Foothill Pine (1)
Pinus sabiniana
California Grape (1)
Vitis californica
California Juniper (1)
Juniperus californica
California Kingsnake (1)
Lampropeltis californiae
California Lancetooth (1)
Haplotrema minimum
California Mule's-ears (1)
Wyethia glabra
California Red Fir (6)
Abies magnifica
California Scrub Oak (2)
Quercus berberidifolia
California Toothwort (1)
Cardamine californica
California Waterleaf (3)
Hydrophyllum occidentale
California Yerba Santa (2)
Eriodictyon californicum
Californian False Hellebore (15)
Veratrum californicum
Canyon Bog Orchid (1)
Platanthera sparsiflora
Canyon Live Oak (5)
Quercus chrysolepis
Cassin's Finch (1)
Haemorhous cassinii
Cassin's Vireo (1)
Vireo cassinii
Chamisso's Miner's-lettuce (2)
Montia chamissoi
Chaparral Honeysuckle (1)
Lonicera interrupta
Chipping Sparrow (3)
Spizella passerina
Choke Cherry (2)
Prunus virginiana
Clustered Lady's-slipper (1)
Cypripedium fasciculatum
Coast Manroot (1)
Marah oregana
Coast Range Bindweed (1)
Calystegia collina
Columbian Monkshood (1)
Aconitum columbianum
Common Bluecup (1)
Githopsis specularioides
Common Chamise (2)
Adenostoma fasciculatum
Common Fig (1)
Ficus carica
Common Gartersnake (1)
Thamnophis sirtalis
Common Horehound (1)
Marrubium vulgare
Common Hornwort (1)
Ceratophyllum demersum
Common Hound's-tongue (1)
Cynoglossum officinale
Common Monkeyflower (4)
Erythranthe guttata
Common Mullein (7)
Verbascum thapsus
Common Raven (1)
Corvus corax
Common Sagebrush Lizard (8)
Sceloporus graciosus
Common Spitting Spider (1)
Scytodes thoracica
Common St. John's-wort (1)
Hypericum perforatum
Common Yarrow (12)
Achillea millefolium
Cougar (3)
Puma concolor
Coville's Lipfern (2)
Myriopteris covillei
Coyote (4)
Canis latrans
Dark-eyed Junco (3)
Junco hyemalis
Deerbrush (4)
Ceanothus integerrimus
Dense Lace Fern (1)
Aspidotis densa
Dimpled Specklebelly (1)
Lobaria anthraspis
Douglas' Squirrel (4)
Tamiasciurus douglasii
Douglas' Wood Beauty (1)
Drymocallis glandulosa
Douglas's Ground Squirrel (2)
Otospermophilus douglasii
Drew's Silky Lupine (1)
Lupinus adsurgens
Durango Root (1)
Datisca glomerata
Dusky Flycatcher (2)
Empidonax oberholseri
Dwarf Cheeseweed (1)
Malva neglecta
Dwarf Purple Monkeyflower (2)
Diplacus nanus
Eastern Warbling-Vireo (1)
Vireo gilvus
Elegant Mariposa Lily (4)
Calochortus elegans
Ensatina (1)
Ensatina eschscholtzii
Evergreen Blackberry (1)
Rubus laciniatus
Fall Thistle (6)
Cirsium occidentale
Few-flowered Oatgrass (1)
Danthonia unispicata
Fireweed (1)
Chamaenerion angustifolium
Fisher (4)
Pekania pennanti
Foot-hill Trefoil (1)
Acmispon brachycarpus
Foothill Beardtongue (3)
Penstemon heterophyllus
Fox Sparrow (4)
Passerella iliaca
Fragrant Sumac (1)
Rhus aromatica
Fremont Cottonwood (1)
Populus fremontii
Gold Poppy (1)
Eschscholzia caespitosa
Golden Eagle (1)
Aquila chrysaetos
Golden Ear-drops (1)
Ehrendorferia chrysantha
Golden Shiner (5)
Notemigonus crysoleucas
Golden-mantled Ground Squirrel (9)
Callospermophilus lateralis
Goldenrod Crab Spider (2)
Misumena vatia
Gray Mule's-ears (3)
Wyethia helenioides
Great Horned Owl (1)
Bubo virginianus
Great Valley gumweed (2)
Grindelia camporum
Greater Red Indian-paintbrush (1)
Castilleja miniata
Green-tailed Towhee (2)
Pipilo chlorurus
Green-tongue Liverwort (1)
Marchantia polymorpha
Hairy Willowherb (1)
Epilobium ciliatum
Hairy Woodpecker (2)
Leuconotopicus villosus
Harbor Seal (1)
Phoca vitulina
Harvest Brodiaea (1)
Brodiaea elegans
Henderson's Shootingstar (3)
Primula hendersonii
Hermit Warbler (1)
Setophaga occidentalis
Hoary Manzanita (3)
Arctostaphylos canescens
Hooked Groundstar (1)
Ancistrocarphus filagineus
Incense Cedar (2)
Calocedrus decurrens
Indian Warrior (3)
Pedicularis densiflora
Interior Live Oak (3)
Quercus wislizeni
Ithuriel's Spear (6)
Triteleia laxa
Jeffrey's Shootingstar (4)
Primula jeffreyi
Jordan's Maidenhair Fern (2)
Adiantum jordanii
Klamath Rockcress (1)
Boechera subpinnatifida
Knobcone Pine (1)
Pinus attenuata
Lace Lipfern (4)
Myriopteris gracillima
Large-flower Collomia (5)
Collomia grandiflora
Large-flower Yellow Fawnlily (8)
Erythronium grandiflorum
Large-fruit Desert-parsley (5)
Lomatium macrocarpum
Largeleaf Lupine (6)
Lupinus polyphyllus
Lawrence's Goldfinch (2)
Spinus lawrencei
Lax Stonecrop (2)
Sedum laxum
Lazuli Bunting (7)
Passerina amoena
Leafless wintergreen (1)
Pyrola aphylla
Leather Oak (3)
Quercus durata
Leopard Lily (2)
Lilium pardalinum
Lincoln's Sparrow (4)
Melospiza lincolnii
Lindley's Lupine (1)
Lupinus bicolor
Long-stalk Clover (8)
Trifolium longipes
Long-tailed Weasel (1)
Neogale frenata
Lovely Clarkia (2)
Clarkia concinna
Lung Lichen (1)
Lobaria pulmonaria
Mallard (3)
Anas platyrhynchos
Many-flower Buckwheat (2)
Eriogonum dasyanthemum
Many-flower Snakelily (1)
Dichelostemma multiflorum
Marbled Cellar Spider (1)
Holocnemus pluchei
Meadow Barley (1)
Hordeum brachyantherum
Meadow Goat's-beard (2)
Tragopogon dubius
Mexican Catchfly (11)
Silene laciniata
Mountain Brickell-bush (1)
Brickellia greenei
Mountain Chickadee (5)
Poecile gambeli
Mountain Quail (3)
Oreortyx pictus
Mountain Whitethorn (8)
Ceanothus cordulatus
Mountain Wildmint (2)
Monardella odoratissima
Mountain-mahogany (5)
Cercocarpus betuloides
Mt. Hood Pussy-paws (2)
Calyptridium umbellatum
Mule Deer (9)
Odocoileus hemionus
Munite Prickly-poppy (1)
Argemone munita
Naked Buckwheat (2)
Eriogonum nudum
Narrow-petal Stonecrop (7)
Sedum stenopetalum
Narrowleaf Blue-eyed Mary (1)
Collinsia linearis
Narrowleaf Owl's-clover (1)
Castilleja attenuata
Narrowleaf Swordfern (1)
Polystichum imbricans
Nettle-leaf Giant-hyssop (2)
Agastache urticifolia
Nevada Bitterroot (2)
Lewisia nevadensis
Newberry's Beardtongue (5)
Penstemon newberryi
Nodding Silverpuffs (1)
Microseris nutans
North American Racer (1)
Coluber constrictor
Northern Alligator Lizard (5)
Elgaria coerulea
Northern Flicker (5)
Colaptes auratus
Northern Red Belt (1)
Fomitopsis mounceae
Northwestern Pond Turtle (1)
Actinemys marmorataProposed Threatened
Ojai Fritillary (4)
Fritillaria affinis
Olive-sided Flycatcher (1)
Contopus cooperi
One-flower Bleedinghearts (1)
Dicentra uniflora
One-seed Pussy-paws (16)
Calyptridium monospermum
Oregon Checker-mallow (3)
Sidalcea oregana
Oregon White Oak (1)
Quercus garryana
Oso-berry (1)
Oemleria cerasiformis
Pacific Bleedingheart (9)
Dicentra formosa
Pacific Dogwood (1)
Cornus nuttallii
Pacific Sideband Snail (1)
Monadenia fidelis
Pacific Stonecrop (2)
Sedum spathulifolium
Pacific Treefrog (6)
Pseudacris regilla
Pale Yellow Stonecrop (1)
Sedum flavidum
Paskenta Grade Dwarf-flax (1)
Hesperolinon tehamense
Peregrine Thistle (1)
Cirsium cymosum
Phantom Orchid (1)
Cephalanthera austiniae
Pine Violet (5)
Viola purpurea
Pinemat Manzanita (2)
Arctostaphylos nevadensis
Pinewoods Lousewort (1)
Pedicularis semibarbata
Pioneer Gooseberry (4)
Ribes lobbii
Prairie Lupine (1)
Lupinus lepidus
Primrose Monkeyflower (2)
Erythranthe primuloides
Purdy's Fritillary (15)
Fritillaria purdyi
Purple Finch (1)
Haemorhous purpureus
Purple Milkweed (1)
Asclepias cordifolia
Pygmy Linanthus (1)
Leptosiphon pygmaeus
Rainbow Trout or Steelhead (1)
Oncorhynchus mykiss
Rayless Arnica (1)
Arnica discoidea
Red Alder (1)
Alnus rubra
Red Larkspur (4)
Delphinium nudicaule
Red-breasted Nuthatch (1)
Sitta canadensis
Red-breasted Sapsucker (1)
Sphyrapicus ruber
Red-shouldered Hawk (2)
Buteo lineatus
Red-stem Springbeauty (5)
Claytonia rubra
Red-tailed Hawk (1)
Buteo jamaicensis
Redwood Beardtongue (4)
Keckiella corymbosa
Rose Clover (1)
Trifolium hirtum
Rubber Rabbitbrush (2)
Ericameria nauseosa
Rydberg's Beardtongue (2)
Penstemon rydbergii
Sand Violet (13)
Viola adunca
Scarlet Missionbells (12)
Fritillaria recurva
Scarlet Monkeyflower (1)
Erythranthe cardinalis
Sculpted Puffball (1)
Calvatia sculpta
Scythe-leaf Onion (13)
Allium falcifolium
Sedge-leaf Whitethorn (1)
Ceanothus cuneatus
Self-heal (2)
Prunella vulgaris
Serpentine Bittercress (1)
Cardamine pachystigma
Serpentine Springbeauty (3)
Claytonia exigua
Shadow Chipmunk (1)
Neotamias senex
Shelton's Violet (2)
Viola sheltonii
Showy Green-gentian (7)
Frasera speciosa
Showy Milkweed (1)
Asclepias speciosa
Showy Phlox (1)
Phlox speciosa
Showy Tarweed (3)
Madia elegans
Sickle-leaf Jewelflower (3)
Streptanthus drepanoides
Sierra Gooseberry (3)
Ribes roezlii
Silver-crown (3)
Cacaliopsis nardosmia
Siskiyou Beardtongue (2)
Penstemon anguineus
Siskiyou Fritillary (23)
Fritillaria glauca
Small-flower Deathcamas (1)
Toxicoscordion micranthum
Small-flower Rosinweed (1)
Calycadenia pauciflora
Small-flower Tonella (1)
Tonella tenella
Small-flower Woodland-star (3)
Lithophragma parviflorum
Small-head Tarweed (3)
Hemizonella minima
Smooth White Violet (1)
Viola macloskeyi
Snow Mountain Beardtongue (5)
Penstemon purpusii
Solomon's-plume (1)
Maianthemum racemosum
Speckled Alder (2)
Alnus incana
Spotted Coralroot (4)
Corallorhiza maculata
Spotted Owl (1)
Strix occidentalis
Spotted Towhee (1)
Pipilo maculatus
Spreading Dogbane (3)
Apocynum androsaemifolium
Spreading Phlox (7)
Phlox diffusa
Spreading Stonecrop (1)
Sedum radiatum
Starflower Solomon's-plume (1)
Maianthemum stellatum
Stebbins' Lewisia (2)
Lewisia stebbinsii
Stebbins' Madia (1)
Harmonia stebbinsii
Sticky Gooseberry (1)
Ribes viscosissimum
Stream Trefoil (3)
Hosackia oblongifolia
Suckling Clover (1)
Trifolium dubium
Sugar Pine (5)
Pinus lambertiana
Swamp Whiteheads (3)
Angelica capitellata
Tall Swamp Onion (5)
Allium validum
Tall White Bog Orchid (20)
Platanthera dilatata
Terrestrial Gartersnake (1)
Thamnophis elegans
Thickleaf Bird's-foot-trefoil (2)
Hosackia crassifolia
Thimbleberry (1)
Rubus parviflorus
Three-leaf Bitterroot (2)
Lewisia triphylla
Thymeleaf Speedwell (3)
Veronica serpyllifolia
Tiger Whiptail (2)
Aspidoscelis tigris
Tolmie's Mariposa Lily (12)
Calochortus tolmiei
Tongue Clarkia (6)
Clarkia rhomboidea
Toothed Wintergreen (1)
Pyrola dentata
Tower-mustard (1)
Turritis glabra
Townsend's Solitaire (4)
Myadestes townsendi
Toyon (1)
Heteromeles arbutifolia
Tuberous Black-snakeroot (1)
Sanicula tuberosa
Tuberous Skullcap (1)
Scutellaria tuberosa
Tufted Foxtail Lichen (1)
Nodobryoria abbreviata
Turpentine Weed (2)
Trichostema laxum
Twining Snakelily (3)
Dichelostemma volubile
Utah Serviceberry (1)
Amelanchier utahensis
Varied Thrush (1)
Ixoreus naevius
Vaux's Swift (1)
Chaetura vauxi
Veiled Polypore (3)
Cryptoporus volvatus
Violet Cup (1)
Geoscypha violacea
Wavyleaf Soap-plant (1)
Chlorogalum pomeridianum
Western Buttercup (1)
Ranunculus occidentalis
Western Columbine (7)
Aquilegia formosa
Western Coneflower (2)
Rudbeckia occidentalis
Western Fence Lizard (8)
Sceloporus occidentalis
Western Forest Scorpion (3)
Uroctonus mordax
Western Gray Squirrel (1)
Sciurus griseus
Western Rattlesnake (7)
Crotalus oreganus
Western Redbud (5)
Cercis occidentalis
Western Sweet-shrub (5)
Calycanthus occidentalis
Western Tanager (3)
Piranga ludoviciana
Western Toad (4)
Anaxyrus boreas
Western Vervain (4)
Verbena lasiostachys
Western Wallflower (5)
Erysimum capitatum
Western Wood-Pewee (1)
Contopus sordidulus
White Fir (6)
Abies concolor
White Sweetclover (1)
Melilotus albus
White Toadshade (4)
Trillium albidum
White-breasted Nuthatch (1)
Sitta carolinensis
White-headed Woodpecker (5)
Leuconotopicus albolarvatus
White-stem Raspberry (4)
Rubus leucodermis
White-veined Wintergreen (2)
Pyrola picta
Whitestem Blazingstar (1)
Mentzelia albicaulis
Wild Turkey (1)
Meleagris gallopavo
Williamson's Sapsucker (2)
Sphyrapicus thyroideus
Wilson's Warbler (1)
Cardellina pusilla
Wolf Lichen (3)
Letharia vulpina
Wood Rose (1)
Rosa gymnocarpa
Woolly Desert-dandelion (1)
Malacothrix floccifera
Woolly Indian-paintbrush (1)
Castilleja foliolosa
Woolly Pod Vetch (1)
Vicia eriocarpa
Woolly-fruit Desert-parsley (1)
Lomatium dasycarpum
Yellow Dung Mushroom (1)
Bolbitius titubans
Yellow Whispering-bells (1)
Emmenanthe penduliflora
Yellow-pine Chipmunk (1)
Neotamias amoenus
Yellow-rumped Warbler (2)
Setophaga coronata
Yellow-staining Collomia (2)
Collomia tinctoria
a fungus (1)
Gymnopus brassicolens
a fungus (1)
Ephemerocybe callina
a fungus (2)
Clitocybe glacialis
a fungus (1)
Pholiota molesta
a fungus (1)
Pulvinula archeri
a fungus (1)
Sclerotinia veratri
a fungus (1)
Botrytis cinerea
a fungus (1)
Uromyces spragueae
blue dicks (5)
Dipterostemon capitatus
Federally Listed Species (5)

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
California Condor
Gymnogyps californianusE, XN
Monarch
Danaus plexippusProposed Threatened
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Western Spadefoot
Spea hammondiiProposed Threatened
Other Species of Concern (21)

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

Allen's Hummingbird
Selasphorus sasin
Bald Eagle
Haliaeetus leucocephalus
Belding's Savannah Sparrow
Passerculus sandwichensis beldingi
Bullock's Oriole
Icterus bullockii
California Spotted Owl
Strix occidentalis occidentalis
California Thrasher
Toxostoma redivivum
Cassin's Finch
Haemorhous cassinii
Channel Island Song Sparrow
Melospiza melodia graminea
Chestnut-backed Chickadee
Poecile rufescens rufescens
Evening Grosbeak
Coccothraustes vespertinus
Flammulated Owl
Psiloscops flammeolus
Golden Eagle
Aquila chrysaetos
Lawrence's Goldfinch
Spinus lawrencei
Nuttall's Woodpecker
Dryobates nuttallii
Oak Titmouse
Baeolophus inornatus
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Western Screech-Owl
Megascops kennicottii cardonensis
White-headed Woodpecker
Dryobates albolarvatus gravirostris
Wrentit
Chamaea fasciata
Migratory Birds of Conservation Concern (18)

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.

Allen's Hummingbird
Selasphorus sasin
Bald Eagle
Haliaeetus leucocephalus
Bullock's Oriole
Icterus bullockii
California Thrasher
Toxostoma redivivum
Cassin's Finch
Haemorhous cassinii
Chestnut-backed Chickadee
Poecile rufescens
Evening Grosbeak
Coccothraustes vespertinus
Golden Eagle
Aquila chrysaetos
Lawrence's Goldfinch
Spinus lawrencei
Oak Titmouse
Baeolophus inornatus
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Savannah Sparrow
Passerculus sandwichensis
Song Sparrow
Melospiza melodia
Spotted Owl
Strix occidentalis
Western Screech-Owl
Megascops kennicottii
Wrentit
Chamaea fasciata
Vegetation (11)

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

California Chaparral
Shrub / Shrubland · 8,628 ha
GNR81.9%
California Mountain Chaparral
Shrub / Shrubland · 289 ha
GNR2.7%
California Mixed Evergreen Forest
Tree / Conifer · 253 ha
GNR2.4%
GNR2.2%
California Foothill Mixed Oak Woodland
Tree / Hardwood · 208 ha
GNR2.0%
GNR1.6%
California Ruderal Grassland and Meadow
Herb / Exotic Herbaceous · 152 ha
1.4%
California Mixed Conifer Forest
Tree / Conifer · 150 ha
GNR1.4%
GNR0.6%
California Valley and Coastal Grassland
Herb / Grassland · 62 ha
GNR0.6%
California Foothill Streamside Woodland
Shrub / Riparian · 53 ha
GNR0.5%

Grindstone

Grindstone Roadless Area

Mendocino National Forest, California · 26,031 acres