Mayfield

Lassen National Forest · California · 14,444 acres · RoadlessArea Rule (2001)
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Observed Species (126)

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

(3)
Brodiaea rosea
(3)
Galeropsis polytrichoides
(1)
Navarretia intertexta
(2)
Agaricus moronii
American Bistort (1)
Bistorta bistortoides
American Black Bear (2)
Ursus americanus
American Sickle (1)
Astragalus curvicarpus
Anderson's Thistle (3)
Cirsium andersonii
Antelope Bitterbrush (1)
Purshia tridentata
Bacigalup's Downingia (8)
Downingia bacigalupii
Baker's Cypress (3)
Hesperocyparis bakeri
Beavertail Mariposa Lily (1)
Calochortus coeruleus
Brewer's Monkeyflower (2)
Erythranthe breweri
Bulbous Bluegrass (2)
Poa bulbosa
California Black Oak (1)
Quercus kelloggii
California Coffeeberry (1)
Frangula californica
California Harebell (1)
Smithiastrum prenanthoides
California Rockrose (1)
Helianthella californica
Californian False Hellebore (1)
Veratrum californicum
Common Yarrow (1)
Achillea millefolium
Curl-leaf Mountain-mahogany (1)
Cercocarpus ledifolius
Cutleaf Owl's-clover (1)
Castilleja lacera
Desert Figwort (1)
Scrophularia desertorum
Desert-sweet (4)
Chamaebatiaria millefolium
Douglas' Spiraea (4)
Spiraea douglasii
Fall Thistle (1)
Cirsium occidentale
Few-flowered Oatgrass (1)
Danthonia unispicata
Fragile Fern (1)
Cystopteris fragilis
Fringepod (1)
Thysanocarpus curvipes
Giant Pinedrops (2)
Pterospora andromedea
Golden Triteleia (2)
Triteleia ixioides
Goldenrod Crab Spider (1)
Misumena vatia
Gophersnake (3)
Pituophis catenifer
Greenleaf Manzanita (1)
Arctostaphylos patula
Hot-rock Beardtongue (1)
Penstemon deustus
Incense Cedar (2)
Calocedrus decurrens
Indian Warrior (1)
Pedicularis densiflora
Jointed Coyote-thistle (1)
Eryngium articulatum
Knobcone Pine (1)
Pinus attenuata
Lace Lipfern (1)
Myriopteris gracillima
Large-flower Collomia (2)
Collomia grandiflora
Layne's Monkeyflower (1)
Diplacus layneae
Leafless wintergreen (2)
Pyrola aphylla
Lobeleaf Groundsel (1)
Packera multilobata
Long-beard Mariposa Lily (3)
Calochortus longebarbatus
Long-toed Salamander (1)
Ambystoma macrodactylum
Man On Horseback (1)
Tricholoma equestre
Many-flower Snakelily (1)
Dichelostemma multiflorum
Marshmallow Polypore (1)
Spongiporus leucospongia
Milky Kelloggia (1)
Kelloggia galioides
Mountain Bluecurls (1)
Trichostema oblongum
Mountain-mahogany (1)
Cercocarpus betuloides
Mule Deer (1)
Odocoileus hemionus
Naked Mariposa Lily (2)
Calochortus nudus
Narrowleaf Milkweed (1)
Asclepias fascicularis
Northern Alligator Lizard (1)
Elgaria coerulea
Northern Pygmy-Owl (1)
Glaucidium gnoma
Northern Saw-whet Owl (1)
Aegolius acadicus
Oak Titmouse (1)
Baeolophus inornatus
Oceanspray (1)
Holodiscus discolor
One-seed Pussy-paws (3)
Calyptridium monospermum
Oregon White Oak (1)
Quercus garryana
Pacific Dogwood (1)
Cornus nuttallii
Pacific Treefrog (3)
Pseudacris regilla
Phantom Orchid (2)
Cephalanthera austiniae
Pin Clover (1)
Erodium cicutarium
Prairie-smoke (5)
Geum triflorum
Pulsifer's Monkeyflower (1)
Erythranthe pulsiferae
Purple Milkweed (1)
Asclepias cordifolia
Quaking Aspen (1)
Populus tremuloides
Red Larkspur (1)
Delphinium nudicaule
Red-stem Springbeauty (1)
Claytonia rubra
Rough Eyelashweed (1)
Blepharipappus scaber
Royal Beardtongue (3)
Penstemon speciosus
Scarlet Skyrocket (2)
Ipomopsis aggregata
Sculpted Puffball (1)
Calvatia sculpta
Sierra Beardtongue (2)
Penstemon heterodoxus
Sierra Chinquapin (1)
Chrysolepis sempervirens
Sierra Jewelflower (2)
Streptanthus tortuosus
Siskiyou Mountain Woodland-star (1)
Lithophragma campanulatum
Small Scaly Clitocybe (1)
Infundibulicybe squamulosa
Snowplant (1)
Sarcodes sanguinea
Spiked Brome (1)
Bromus racemosus
Spreading Dogbane (1)
Apocynum androsaemifolium
Starflower Solomon's-plume (1)
Maianthemum stellatum
Sunshine Amanita (2)
Amanita aprica
Tehama Navarretia (1)
Navarretia heterandra
Terrestrial Gartersnake (1)
Thamnophis elegans
Thickleaf Bird's-foot-trefoil (2)
Hosackia crassifolia
Thyme-leaf Broomspurge (1)
Euphorbia serpillifolia
Toad Rush (1)
Juncus bufonius
Tobacco Ceanothus (1)
Ceanothus velutinus
Tongue Clarkia (4)
Clarkia rhomboidea
Tricolor Monkeyflower (2)
Diplacus tricolor
Umbellate Bastard Toad-flax (1)
Comandra umbellata
Umbrella Plant (1)
Darmera peltata
Wapatum Arrowhead (1)
Sagittaria cuneata
Water Loosestrife (1)
Lysimachia thyrsiflora
Water-plantain Buttercup (1)
Ranunculus alismifolius
Wavyleaf Indian-paintbrush (2)
Castilleja applegatei
Western Fence Lizard (2)
Sceloporus occidentalis
Western Juniper (1)
Juniperus occidentalis
Western Ladies'-tresses (3)
Spiranthes porrifolia
Western Redbud (2)
Cercis occidentalis
Western Swordfern (1)
Polystichum munitum
Western Toad (1)
Anaxyrus boreas
Western Trillium (2)
Trillium ovatum
White Triteleia (2)
Triteleia hyacinthina
White-flower Navarretia (3)
Navarretia leucocephala
Wild Turkey (1)
Meleagris gallopavo
Woodland Brome (1)
Bromus orcuttianus
Woolly Mule's-ears (1)
Wyethia mollis
a fungus (3)
Butyriboletus primiregius
a fungus (5)
Boletus rex-veris
a fungus (1)
Calbovista subsculpta
a fungus (1)
Calonarius verrucisporus
a fungus (1)
Maublancomyces montanus
a fungus (1)
Melanoleuca angelesiana
a fungus (4)
Morchella snyderi
a fungus (1)
Neolentinus ponderosus
a fungus (1)
Suillus pseudobrevipes
a fungus (3)
Tricholoma moseri
a fungus (2)
Tricholoma vernaticum
a harvestman (1)
Sabacon siskiyou
turkey mullein (1)
Croton setiger
Federally Listed Species (11)

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.

Conservancy Fairy Shrimp
Branchinecta conservatioEndangered
Northern Spotted Owl
Strix occidentalis caurinaThreatened
Shasta Crayfish
Pacifastacus fortisEndangered
Vernal Pool Fairy Shrimp
Branchinecta lynchiThreatened
Vernal Pool Tadpole Shrimp
Lepidurus packardiEndangered
California Condor
Gymnogyps californianusE, XN
Gray Wolf
Canis lupus
Monarch
Danaus plexippusProposed Threatened
Northwestern Pond Turtle
Actinemys marmorataProposed Threatened
Suckley's Cuckoo Bumble Bee
Bombus suckleyiProposed Endangered
Yellow-billed Cuckoo
Coccyzus americanus
Other Species of Concern (7)

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

Bald Eagle
Haliaeetus leucocephalus
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Evening Grosbeak
Coccothraustes vespertinus
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Migratory Birds of Conservation Concern (7)

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
Calliope Hummingbird
Selasphorus calliope
Cassin's Finch
Haemorhous cassinii
Evening Grosbeak
Coccothraustes vespertinus
Lewis's Woodpecker
Melanerpes lewis
Olive-sided Flycatcher
Contopus cooperi
Rufous Hummingbird
Selasphorus rufus
Vegetation (5)

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

Pacific Northwest Wooded Lava Flow
Tree / Conifer · 3,634 ha
GNR62.2%
California Mountain Chaparral
Shrub / Shrubland · 1,361 ha
GNR23.3%
California Mixed Conifer Forest
Tree / Conifer · 350 ha
GNR6.0%
GNR5.1%
Sierra Nevada Cliff and Canyon
Sparse / Sparsely Vegetated · 132 ha
2.3%

Mayfield

Mayfield Roadless Area

Lassen National Forest, California · 14,444 acres