Dryopteris filix-mas (1996)
DRYOPTERIDACEAE
Dryopteris filix-mas (L.) Schott
U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Phantom Canyon: along Eightmile Creek and surrounding cliffs off Colo Hwy 67 or Phantom Canyon Road approx 2.2 rd mi N of BLM Steel Bridge Interpretive Site, ca 8.2 air mi NE of Canon City.
In wet, mossy crevices on face of cliff. Phenology: spores.
Accession: (unaccessioned)

Dryopteris filix-mas (2004)
DRYOPTERIDACEAE
Dryopteris filix-mas (L.) Schott
U.S.A., Arizona, Coconino County: Coconino National Forest: in James Canyon 1/2 - 3/4 mi W of I-17, ca 11 air mi S of Flagstaff.
Canyon slopes. Phenology: spores.
with James F. Fowler
Accession: RM (unaccessioned)

Dryopteris filix-mas (2000)
DRYOPTERIDACEAE
Dryopteris filix-mas (L.) Schott
U.S.A., Montana, Sweet Grass County: Gallatin National Forest: Crazy Mountains; along the S side of Big Timeber Creeks 1.5 mi NE of Granite Peak, 22 mi NE of Big Timber.
Elev. 7700 ft.
T3N R12E S5
Seepage in spruce-fir forest with Veratrum viride, Calamagrostis canadensis and Senecio triangularis. Phenology: vegetative only.
Accession: RM 824773, Barcode: RM0019676

U.S.A., Wyoming, Park County: Yellowstone National Park: Washburn Range: south side of Mount Washburn just below summit and fire look-out.
Under rock overhang on thalus slope with Cyustupteris fragilis. Phenology: vegetative only.
Accession: RM 824366, Barcode: RM0019346

U.S.A., Idaho, Valley County: Salmon River Mountains: along Lick Creek, ca 20 mi NE of McCall, just S of Forest Road 48.
Elev. 4500 ft.
In rich, mesic Abies grandis forest.
Accession: (unaccessioned)

U.S.A., Montana, Park County: Gallatin National Forest: Crazy Mountains: Half Moon Campground, ca 15 mi NW of Big Timber.
Elev. 6450 ft.
Under Picea engelmannii in moist-wet soil around springs. Phenology: vegetative only.
Accession: RM 752707

U.S.A., Montana, Park County: [location and coordinates withheld]
Along south side of campground approach road, on road cut at base of north-facing slope under small Picea engelmannii. Phenology: vegetative only.
Accession: RM 752779

U.S.A., Montana, Carbon County: Beartooth Mountains: Custer National Forest: along East Rosebud Trail; ca 3/4 mi S of East Rosebud Lake.
At base of rock outcroppings in coniferous forest just E of trail. Phenology: spores.
Accession: RM 781323

U.S.A., Montana, Carbon County: Beartooth Mountains: Custer National Forest: along E Rosebud Trail between Elk Lake and Rimrock Lake, ca 22 mi W of Red Lodge.
Rocky, spruce-fir forest with Alnus viridis, Antennaria racemosa, Arnica latifolia var. gracilis, and Carex rossii. Phenology: spores.

U.S.A., Colorado, Mineral County: Eastern San Juan Mountains: San Juan National Forest: Fourmile Trail, ca 11 air mi N of Pagosa Springs.
Spruce, fir, and aspen forest. Phenology: spores.
Accession: RM (unaccessioned)

U.S.A., Colorado, Mineral County: Eastern San Juan Mountains: San Juan National Forest: Weminuche Wilderness: Beaver Creek or Trail 560 off West Fork Trail, ca 16 air mi NNE of Pagosa Springs.
Lush spruce/fir forest alongside river on mostly east-facing slope. Phenology: spores.
Accession: RM (unaccessioned)

U.S.A., Arizona, Apache County: Apache National Forest: White Mountains: along Benny Creek, ca 1 air mi W of south end of Greer, ca 14.5 air mi SW of Springerville.
Meadow, stream bottom, basalt outcrops and ledges, and adjacent open ponderosa pine forest. Phenology: spores.
with James F. Fowler

U.S.A., Arizona, Coconino County: Coconino National Forest: split in Forest roads 96 and 95 in bottom of East Clear Creek.
Sandstone walls and slopes below. Phenology: vegetative only.
Annotations:
Annotated by B. E. Nelson.
with James F. Fowler

U.S.A., Arizona, Coconino County: Flagstaff vicinity.
T21N R7E S16
Shady nook below cliff, in very dense vegetation. Phenology: spores.
with Ruth A. Nelson

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Salmon River Mountains: along Kennally Creek from the campground to the North Fork, ca 14-15 air mi SE of McCall.
Moist to wet mixed conifer forest along the creek. Phenology: spores.
with Joy Handley

U.S.A., Idaho, Idaho County: Payette National Forest and Vicinity: Salmon River Canyon: Vinegar Creek boat ramp to Huntz Gulch along Forest Road 103, ca 13 air mi N of Burgdorf; ca 11-14 air mi ENE of Riggins Hot Springs.
North facing slope of river canyon dominated by Pinus ponderosa and Pseudotsuga menziesii. Phenology: vegetative only.

U.S.A., Idaho, Adams County: Payette National Forest and Vicinity: Salmon River Mountains: Bear Basin and along Forest Road 452, ca 4 air mi NW of McCall; ca 7 air mi ESE of New Meadows.
Roadside, moist, mixed conifer overstory. Phenology: vegetative only.
with Denise L. Fairbanks

U.S.A., Idaho, Idaho County: Payette National Forest and Vicinity: Salmon River Mountains: along old logging road just E of Lava Butte Lakes and Sams Throne, ca 9 air mi W of Burgdorf; ca 24 air mi NNE of New Meadows.
Wet ditch of old logging road, logged and burned fir-spruce. Phenology: vegetative only.

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Salmon River Mountains: Sloans Point, ca 7.5 air mi ENE of Donnely; ca 14 air mi SE of McCall.
Spring and marshy stream bottom. Phenology: spores.
with B. E. Nelson

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Salmon River Mountains: Boulder Lake Trail from parking lot to western edge of Boulder Lake, ca 8 air mi ESE of McCall; ca 12 air mi NE of Donnely.
Moist areas along trail. Phenology: vegetative only.
with B. E. Nelson

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Salmon River Mountains: Fitsum Creek Trail (Trail 087), along the South Fork Salmon River, ca 20 air mi ENE of McCall; ca 17 air mi S of Warren.
Trailside along west facing river bank in Pinus ponderosa overstory. Phenology: spores.

U.S.A., Idaho, Valley County: Payette National Forest and Vicinity: Salmon River Mountains: Lick Creek Road (Forest Road 48) at North Fork Lake Fork, ca 7 air mi E of McCall.
Floodplain and woodland. Phenology: spores.

U.S.A., Colorado, Jackson County: Sierra Madre/Park Ranges: Park Range: ca 18 air mi WSW of Walden, Livingston Park-Norris Creek area.
T8N R82W S16
Open area with beaver pond and mixed lodgepole pine-aspen stands.
with Sunny & Joel Kastning
Accession: (unaccessioned)

U.S.A., Colorado, Jackson County: Sierra Madre\Park Range: Park Range: ca 18 air mi WSW of Walden, Livingston Park-Norris Creek area.
Open area with beaver pond and mixed lodgepole pine-aspen stands.

U.S.A., New Mexico, Lincoln County: Near the headwaters of the south fork of Eagle Creek, crossing the ridge into Ruidoso Creek.
Old burns, lush meadows in spruce, open areas; with Douglas fir, white pine and oak. Phenology: vegetative only.

U.S.A., New Mexico, Dona Ana County: Organ Mountains.
Phenology: vegetative only.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Yerba Canyon, Forest Trail 61 off NM Hwy 150, ca 10 air mi NE of Arroyo Seco.
Small stream riparian and canyon bottom. Phenology: spores.
Accession: RM 946526, Barcode: RM0143336

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: small road E off Forest Road 45 toward Big Rock to Posos Lake, ca 2 air mi W of Las Tablas.
Stock pond and granite outcrops. Phenology: spores.

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: east slope of Penascoso Mountain, Comales Canyon Forest Service Trail 22 to NM Hwy 518, ca 6 air mi SE of Penasco.
Stream riparian and adjacent slopes. Phenology: spores.

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Cimarron Range: Colin Neblett State Wildlife Area: along Maverick Creek from U.S. Hwy 64, ca 0.5 air mi NE of Gravel Pit Lakes, ca 7 air mi E of Eagle Nest, ca 1.5 air mi W of Ute Park at area boundary.
Sandstone outcrops with Pinus ponderosa. Phenology: spores.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: ca 2 to 3 air mi NW of Tres Piedras, Palmer Canyon to granite batholith SE of Tom Bryan Canyon.
Ponderosa pine woodland and granite; granite. Phenology: spores.

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: ca 1 air mi W of Tres Piedras crossroads, just N of Tres Piedras Canyon.
Granitic outcrops with degradation products in between. Phenology: spores.

U.S.A., South Dakota, Pennington County: Black Hills: Mount Rushmore National Memorial: ca 0.3 air mi NE of The Heads.
At base of crack in vertical southeast-facing schist rock outcrop; with ponderosa pine, aspen, bur oak.

U.S.A., South Dakota, Pennington County: Black Hills: Mount Rushmore National Memorial: Ca 0.3 air mi NE of The Heads.
At base of crack in vertical southeast-facing schist rock outcrop; with ponderosa pine, aspen, bur oak. NPS Accession No. ACC 278; Catalog No. 7088.

U.S.A., New Mexico, Apache County: White Mountains: Greer.
Phenology: spores.

U.S.A., Arizona, Cochise County: Huachuca Mountains: Millers Canyon.
Moist shaded crevices in cliffs. Phenology: vegetative only.
Leslie N. Goodding, 122. 6/8/1909.

U.S.A., Arizona, Cochise County: Huachuca Mountains: South Miller Canyon.
T26S R20E S26
Wet spots. Phenology: spores.
Leslie N. Goodding, 317. 8/3/1909.

U.S.A., Arizona, Apache County: White Mountains: Black River: Thompsons Ranch.
T6N R27E S26
Loose rocks of old lava flow. Phenology: spores.

U.S.A., Wyoming, Carbon County: Sierra Madre: Haggarty Creek, near Lost Creek.
41.1275° N, 107.1073° W; NAD 83, uncertainty .5 mi., Nat. Geog. TOPO!
Rock crevice associated with Cystopteris fragilis and Cryptogramma crispa; rare. Phenology: vegetative only.

U.S.A., Wyoming, Laramie County: Hynds Scout Lodge, 1 mi NW of Granite Springs Reservoir.
Rock crevice associated with Jamesia; sparce abundance. Phenology: spores.

U.S.A., Wyoming, Crook County:
Mossy rock crevice with Quercus and Corylus. Phenology: vegetative only.

U.S.A., Colorado, Larimer County: Roosevelt National Forest: Front Range: off Pennock Pass Road (County Road 44H) along Sheep Creek off Moody Hill Road (Forest Road 513), ca 11 air mi W of Fort Collins.
Lush, shaded creekside down north slope with Alnus and Prunus, in the foothills. Phenology: spores.

U.S.A., Wyoming, Fremont County: Owl Creek Range: E of the Wind River Canyon, at Birds Eye Pass.
43.4578° N, 108.0728° W; NAD 83, uncertainty 1 mi., Digital Map
Shady granite rock crevices. Phenology: spores.
with Marjorie W. Porter

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Cochiti Canyon, 4.3 air mi SSE of Rabbit Mountain. From crossing of Trail 113 SE 1.3 mi in canyon.
Canyon bottom and riparian. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: San Antonio Hot Springs and along San Antonio Creek, 5 air mi N of La Cueva, at parking area on NM Hwy 376.
Forested east slope of blue spruce with two warm springs. Phenology: spores.

U.S.A., New Mexico, Los Alamos County: Santa Fe National Forest and Vicinity: Jemez Mountains: upper Guaje Canyon, 4 air mi NW of Los Alamos, from Guaje Reservoir W up canyon for 2.1 air mi.
Mixed coniferous forest with corkbark fir on drainage slopes. Riparian and marsh in bottom. Phenology: spores.
with Ron Hartman and Brian Jacobs

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: East Fork Jemez River at Las Conchas Trail 137 off NM Hwy 4, S of Valles Caldera National Preserve. NW on Trail 137 along river for 1.5 mi.
Engelmann spruce slopes and cliffs of canyon margins. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: San Antonio Creek, 3.8 air mi NNW of La Cueva. NE from Forest Road 376 to San Antonio Creek, E 1 mi up Ice Cave Canyon to Mushroom Basin, returning to Forest Road 376 0.8 mi N of start.
Canyon riparian. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Alamo Canyon and spring, 2 air mi E of Rabbit Mountain. From Forest Road 287-Mesa Road, at canyon crossing, 1.1 air mi SE down canyon. Then exiting N and returning across Sawyer Mesa via Mesa Road.
Riparian bottom obstructed by large boulders and with nettle understory in a narrow, steep canyon of pine/fir with volcanic cliffs. Phenology: spores.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 92 in Rito de la Osha, 4.5 air mi SE of Terrero, at side road heading N along perpendicular drainage ca 500 ft.
Granitic cliffs to immediate E of creek. Phenology: spores.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Maestas Creek on north side of Forest Road 391, 4.5 air mi WNW of Rociada. SW on road 0.3 air mi along creek to private drive.
Riparian and moist banks of creek. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Los Griegos Mountain, 8 air mi E of Jemez Ranger Station. From NM Hwy 4/4A junction, 1.5 air mi to summit.
Slopes and drainages of mature coniferous forest with aspen. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: East Fork Jemez River from trailhead, 0.2 air mi W of Las Condras Campground, N and W to Valles Caldera National Preserve fence near highpoint 8612.
Broad valley with volcanic boulders and rock outcrops on flanks. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 126, 3.5 road mi from Forest Road 20, Telephone Canyon.
Grassy valley and volcanic rock outercrops. Phenology: spores.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Hermit Peak.
Coniferous overstory. Phenology: spores.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Gallinas Creek from end of County Road 263, 20 air mi NW of Las Vegas.
Canyon bottom and lower slope, trailside, through spruce/fir forest; granite bluffs constricting canyon in places. Phenology: spores.

U.S.A., New Mexico, Mora County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Medio Trail 155, 10 air mi NNW of Cowles; WNW 0.3 air mi on trail.
Trailside along south-facing canyon slope of mixed conifers. Collection from secondary drainage running S into Rio Medio. Phenology: spores.

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Mora near Valle Largo Trail 248 crossing, 2 3/4 air mi ENE of Cowles.
Narrow, moist canyon bottom with granite bluffs and riparian in surrounding mixed conifer forest. Phenology: spores.

U.S.A., New Mexico, Mora County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: falls on North Fork Rio La Casa from Walker Flats to E, 5.5 air mi WNW of Cleveland. N36.0147 W105.4648 at Forest Road113 and flats W 0.9 air mi to falls at N36.0139 W105.4816.
Meadow at the flats into spruce, Douglas fir, and white fir forest, and emerging onto riparian of river. Phenology: spores.

U.S.A., Wyoming, Albany County: Medicine Bow Mountains, near University Camp.
Wet sandy recesses; granite cliffs. Phenology: spores.

U.S.A., Wyoming, Albany County: Laramie Peak.
In the crevices of the cliffs. Phenology: spores.

U.S.A., Wyoming, Albany County: Ragged Top.
Deep shaded canyons. Phenology: vegetative only.

U.S.A., Wyoming, Albany County: Crow Creek.
Crevices of rocks. Phenology: spores.

U.S.A., Wyoming, Albany County: Dale Creek, 1 mi S.
Ravines. Phenology: spores.

U.S.A., Wyoming, Converse County: Northern Laramie Mountains, northwest end (referred to as Deer Creek Range on maps): Deer Creek near Converse/Natrona county line.
Granite outcrops on ridgecrest; crack in outcrop on east-facing slope Phenology: spores.

U.S.A., Wyoming, Albany County: Fish Creek, Wyo-Colo. boundary.
41.0122° N, 105.4493° W; NAD 83, uncertainty 1 mi., Digital Map
Cave in granite rocks. Phenology: vegetative only.

U.S.A., Wyoming, Albany County: Hermosa, Hawks Ranch SSE of Laramie.
In narrow gorges among the granite cliffs. Phenology: spores.
J. Francis Macbride, 2604. 8/3/1913.

U.S.A., Wyoming, Carbon County: Chimneys of Pedro Mountains.
42.3096° N, 106.8365° W; NAD 83, uncertainty 1 mi., Digital Map
Great cleft in the rocks. Phenology: spores.

U.S.A., Wyoming, Washakie County: Near the R. E. Holland Ranch, southern end of Big Horn Range.
In a cave. Phenology: vegetative only.
Mrs. R. E. Holland, s.n.. //1947.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Cerro La Jara.
Grassy slopes, wooded hills, rock outcrops. Dominants in woodland: Pinus ponderosa, P. strobiformis, Pseudotsuga meuziesii, Picea pungens, Juniperus communis, and J. scopulorum. Phenology: spores.

U.S.A., Wyoming, Carbon County: Sierra Madre Mountains: Haggarty Creek, near Lost Creek.
Rock crevice associated with Cystopteris fragilis and Cryptogramma crispa; rare. Phenology: vegetative only.

U.S.A., Wyoming, Platte County: 18 mi NW of Wheatland.
Granite rock crevice. Phenology: vegetative only.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: southwest half of Rincon de los Soldados from extreme southeast spur of Cerro del Medio to the NE.
Grassy slopes, drainages, rock outcrops, ponderosa pine savanna. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: 1.2 air mi E of top of Cerro Pi¤on; southwest corner Cerro del Medio near springs.
Rock outcrop in mixed conifer overstory. Phenology: spores.

U.S.A., Wyoming, Albany County: North Laramie Range: Sunset Hill, ca 1.5 air mi ENE of Esterbrook, ca 0.5 mi S of Converse County.
Granite outcrops, cracks, and crevices on south and west-facing slopes in open ponderosa pine woodland. Phenology: spores.

U.S.A., Wyoming, Natrona County: North Platte River Basin: southeast flank of Pathfinder Mountain, ca 1/4 - 1/2 mi N of Pathfinder Reservoir.
Granite boulder slope and outcrops on north and west exposures; in shady crevices at base of boulders. Phenology: spores.

U.S.A., Wyoming, Albany County: Laramie Range: Sherman Mountains, east-west ridge system ca 0.5 air mi N of Brady Rock, on east side of Middle Crow Creek, ca 2.4 mi E of I-80.
Outcrops and cliffs of pink Sherman Granite in shady crevices or gaps between large boulders. Phenology: spores.
with Laura Gianakos

U.S.A., Wyoming, Albany County: Laramie Range: north side of Wyo Hwy 210 (Happy Jack Road) on north side of Brush Creek, ca 1.5 mi W of Laramie County and 2 mi E of Twin Mountain.
Crevices and ledges in Sherman Granite knob in partial shade on south side. With Jamesia americana, Heuchera bracteata, and Senecio rapifolius.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: west end Valle Toledo, rock outcrops through "narrows" along San Antonio Creek, ca 0.5 air mi SE of Cerros de Trasquilar.
Rocky outcrops and streambank. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: general route - west gate (Sulphur Springs Road) N along west side fence to Sulphur Point and San Antonio Mountain E on road to 9200 ft and bushwack to Sulphur Springs Road; base of San Antionio Mountain.
Coniferous forest with large boulders. Phenology: spores.

U.S.A., Arizona, Pima County: Santa Catalina Mountains.
Phenology: spores.
with Thornber
Accession: RMRS 60

U.S.A., Arizona, no county County: Santa Catalina Mountains.
Phenology: spores.
Livingstons & Thoneber(?0, s.n.. 8/7/1908.
Accession: RMRS 60

U.S.A., Wyoming, Teton County: Grand Teton National Park and Vicinity: Teton Range: from the junction with the Valley Trail along Death Canyon Trail at the lower end and mouth of Death Canyon, ca 4-5 air mi W of Moose; ca 13 air mi N of Jackson.
Brushy canyon bottom. Phenology: spores.
Annotations:
1. Dryopteris filix-mas (L.) Schott
Annotated by David Scott.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: 1.2 air mi W of maingate along NM Hwy 4, N along fence line to the East Fork Jemez Creek and return.
Wet meadow with seeps, adjacent spruce forest, and rock outcrops along stream. Phenology: vegetative only.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: East Fork Jemez River, short segment in Preserve ca 1 air mi SW of El Cajete (center of caldera).
Along river with blue spruce and white fir on slopes, willow and birch scattered on bank. Phenology: spores.

U.S.A., South Dakota, Custer County: Gorge below Sylvan Lake.
T2S R5E S30

U.S.A., South Dakota, Custer County: The Needles, 1.5 mi E of Sylvan Lake.
T2S R5E S32
Common in moist humus lodged in crevices in The Needles. Phenology: spores.

U.S.A., South Dakota, Custer County: Gorge below Sylvan Lake.
Arthur C. McIntosh, 571. 8/5/1924.

U.S.A., South Dakota, Custer County: The Needles; 1.5 mi E of Sylvan Lake.
Common in moist humus lodged in crevices in The Needles. Phenology: spores.

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: along East Fork Jemez River, ca 3/4 - 1 air mi E of NM Hwy 4, ca 8 air mi NE of Jemez Springs; ca 15 air mi WSW of Los Alamos.
North-facing slope in Douglas fir forest along the river. Phenology: spores.

U.S.A., South Dakota, Lawrence County: Black Hills: Spearfish Canyon, ca 4 mi S of Spearfish and 0.5 mi N of Bridal Veil Falls in east-west trending tributary canyon ca 1/8 mi W of U.S. Highway 14A.
In moist, cool canyon bottom under Betula papyrifera and Picea glauca with a groundlayer of Dryopteris filix-mas and Adoxa moschatellina. Phenology: spores.

U.S.A., South Dakota, Lawrence County: Black Hills: Bear Gulch N of Tinton, ca 9 air mi WSW of Spearfish.
With paper birch, thimbleberry at edge of creek bed. ELEVSTR? G. Bryson Phenology: spores.

U.S.A., South Dakota, Lawrence County: Black Hills: Black Hills National Forest: Bear Gulch NNE of Tinton, ca 0.2 mi above confluence with Knight Spring drainage, ca 9 air mi WSW of Spearfish.
Shaded creek bottom, with white spruce, paper birch, and hazelnut. Phenology: spores.

U.S.A., South Dakota, Pennington County: Black Hills: Black Elk Wilderness: Grizzly Bear Creek above "the narrows," ca 1.1 air mi S of Mt. Rushmore Nat. Memorial (The Heads); ca 7.5 air mi SE of Hill City.
Crevices in granite outcrops above and south of creek. Phenology: spores.
with Cheryl Mayer

U.S.A., South Dakota, Custer County: Black Hills: Black Elk Wilderness: divide between Iron Creek Trail and Grizzly Bear Creek Trail near junction with Harney Peak Trail, ca 1.4 air mi SSE of Harney Peak Lookout Tower.
Bottom of southwest-trending gully in large granite outcrop near ridgecrest (summit). Phenology: spores.
with Patches

U.S.A., South Dakota, Pennington County: Black Hills: Black Elk Wilderness: just N of Sylvan Lake on Harney Peak Trail (#9), ca 0.2 mi upstream from Lost Cabin Creek, crossing (junction with Trail #2), ca 0.7 air mi SSW of Harney Peak Lookout.
Steep narrow gully in granite outcrop, with Carex sprengelii. Phenology: spores.
with Patches

U.S.A., South Dakota, Pennington County: Black Hills: Black Elk Wilderness: Upper Pine Creek Natural Area, Pine Creek above Horsethief Lake ca 1.0 air mi SW of dam, in rocky narrows just upstream from Centennial Trail (#89).
Abundant in narrow gully bottom in very large granite outcrops on northwest side of creek. Phenology: spores.
with Patches

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Valle Grande, Cerro la Jara.
0E, 0N
At base of exposed west facing rocky slopes where rock meets moist meadow. Phenology: spores.
with Elaine Jacobs

U.S.A., South Dakota, Custer County: Custer.

U.S.A., South Dakota, Harding County: Moreau River Valley: Soft Water Creek.
Moist rocks. Phenology: spores.

U.S.A., South Dakota, Pennington County: Black Hills: Harney Peak.

U.S.A., Colorado, Fremont County: San Isabel National Forest: Chandler Gulch.
T19S R71W S36
Uncommon, 20% north slope in alder; stream-bottom, moist loam, in deep shade with Actea and Poa. Phenology: spores.
Annotations:
1. Dryopteris filix-mas (L.) Schott
Annotated by S. F. Blake.
Accession: USFS 409357

U.S.A., New Mexico, Sandoval County: Jemez Canyon: west side of Battleship Rock.
In talus on west side of rock. Phenology: spores.
with Ruth A. Nelson

U.S.A., New Mexico, Sandoval County: Jemez Valley.
Rock crevice in spruce grove. Phenology: spores.

U.S.A., Colorado, Larimer County: 6 to 8 mi W of Fort Collins.
Phenology: vegetative only.

U.S.A., Colorado, Larimer County: Horsetooth Mountain.

U.S.A., Colorado, Larimer County: At east base of Horsetooth Mountain, W of Spring Creek.
In crevices among rocks with Asplenium and Senecio. Phenology: spores.

U.S.A., Colorado, Larimer County: Canon of the Thompson.

U.S.A., Colorado, Larimer County: Canon of the Thompson.
Phenology: vegetative only.

U.S.A., Colorado, Boulder County: Estes Park
George E. Osterhout, 899. 8//1895.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch: near Cimarron; South Fork of the Urraca Creek; 3 mi W of Miners Park.
Common at base of outcrop. Phenology: spores.

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: near junction of the South and Middle Fork Cimarroncito Creek, on road to Cyphers Mine.
Common on moist, shaded, north exposure. Phenology: spores.

U.S.A., Colorado, Rio Grande County: Ca 0.5 mi N of Bishop Rock; ca 1 mi N of Rock Creek Park.
Rare, in deep, moist vertical cracks of outcrop. Phenology: spores.
with J. Anderson

U.S.A., Colorado, Boulder County: Bear Canyon, near Boulder.

U.S.A., Colorado, Montezuma County: Mancos Canyon, Ute Tribal Park.
Rimrock of S edge of mesa above cool Pseudotsuga-forested box canyon. One large plant in crevice above small pool. Phenology: spores.
with M. Colyer

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Hanging Lake trail, ca 8 air mi ENE of Glenwood Springs.
Along creek and lake at bottom of steep canyon through Precambrian rock, with Douglas fir, boxelder, and Rocky Mountain maple.
James P. Vanderhorst, 176. 6/4/1990.

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Grizzly Creek, ca 4 air mi E of Glenwood Springs.
Canyon bottom, with cottonwood, Douglas fir, spruce, and dogwood.
James P. Vanderhorst, 1894. 8/24/1990.

U.S.A., Washington, Stevens County: Western Colville National Forest and Vicinity: northeast flank of Aladdin Mountain, ca 8 air mi W of Ione, E of Forest Road 200.
Heavily grazed aspen grove with old burnt cedar stumps. Phenology: spores.
1. Dryopteris filix-mas (L.) Schott
Annotated by W. H. Wagner.
with Linda Swartz

U.S.A., Washington, Columbia County: Umatilla National Forest and Vicinity: east side of Chase Mountain from North Fork Touchet River, 0.5-1.5 air mi SW of Middle Point Ridge Trail.
Coniferous forest. Phenology: spores.
Annotated by Heather Bradtke.
with Heather Bradtke

U.S.A., Oregon, Wallowa County: Umatilla National Forest and Vicinity: Wenaha Tucannon Willderness: along Hoodoo Trail above the Wenaha River, ca 35 mi E and 7 mi S of Walla Walla.
Copper slopes under ponderosa pine and Douglas fir; slope 20; aspect north. Phenology: spores.

U.S.A., Wyoming, Campbell County: Powder River Basin: South Middle Pumpkin Butte.
Limber pine slopes, rocky slopes, small pools of water on upper east slopes, plains and outcrops on summit; upper east slope, in shade along base of large boulder. Phenology: spores.

U.S.A., Wyoming, Converse County: Laramie Mountains: ca 5 air mi NNE of summit of Laramie Peak.
Rocky granite outcrops. Phenology: spores.
with Peter Stahl

U.S.A., Wyoming, Natrona County: Wind River Basin: Sentinel Rocks, 2.5 air mi SE of Independence Rock.
Sandy sagebrush covered plains, granite mountains with massive boulders and moist seeps, aspen woodlands in drainages; granite mountains and drainages. Phenology: spores.
with June Haines

U.S.A., Wyoming, Campbell County: Powder River Basin: Pumpkin Buttes: South Middle Butte.
Upper slopes on north side. Phenology: spores.
with Mary Alice Sanguinetti

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Harding Gulch, ca 6.5 air mi NE of Alva, ca 12.8 air mi NE of Hulett.
Edge of dry creek. Phenology: spores.

U.S.A., Wyoming, Crook County: Black Hills National Forest; Forest Road 866, Idol Gulch.
At base of ravine; in thicket; on limestone. Phenology: vegetative only.

U.S.A., Wyoming, Crook County: Black Hills: Sand Creek ca 0.7 mi above Crossing, in side drainage SW of creek, ca 9 air mi S of Beulah. /4 /4S17.
Below spring in birch-hazelnut woods. Phenology: spores.

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: headwaters of Slaybaugh Creek along Forest Road 845, ca 7 air mi S of Alva.
Spring in birch woods. Phenology: spores.

U.S.A., Wyoming, Crook County: 6 mi W of Hulett.
Moist, sunny canyon floor. Phenology: spores.

U.S.A., Wyoming, Crook County: Bear Lodge National Forest: Cole Canyon ca 6 mi N of Sundance.
Paper birch/hazelnut community. Phenology: fruiting.
with C. Wetmore

U.S.A., New Mexico, Taos County: Along Italianos Trail in Taos Ski Valley.
Mesic forest along creek, then pine forest and meadow. Rhizome erect; frond clustered to 1 mi long. Phenology: spores.
Annotated by Ronald L. Hartman.

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: rock outcrop on south side of Leandro Creek where it passes through The Wall; 1.5 air mi ESE of Vermejo Peak.
Steep, mossy, sandstone rock face shaded by Populus tremuloides and Pseudotsuga menziesii, with Jamesia americana, Actaea rubra, Urtica dioica, Cystopteris, Asplenium septentrionale. Fronds spreading-erect from large basal crowns; plants local in moist shaded soil or on shaded mossy rock benches at base of overhanging cliff; 31 clumps found. Photographed. Specimen GPS: 36.88517, -105.187599. Phenology: spores.
Annotated by Ben Legler on 1/19/2009.

U.S.A., Montana, Missoula County: Rattlesnake Creek Valley, 1.8 mi NE of Missoula Post Office: Stickney's Wildflower Garden.
T13N R19W S15
Garden, north side bed with north exposure. Transplanted from Idaho: Clearwater County: North Fork Clearwater River / Washington Creek: T14N R7E S4. Phenology: spores. Cultivated.
Annotated by Charles Feddema in 1971.

U.S.A., Montana, Sweet Grass County: Crazy Mountains: along shore of Blue Lake, ca 27 mi NW of Big Timber.
T3N R12E S6 SW1/4
Mixed coniferous forest of Abies lasiocarpa, Picea engelmannii, with some Pinus albicaulis and understory of Vaccinium scoparium , Carex geyeri. Phenology: spores.

U.S.A., Montana, Flathead County: Swan Mountains: ca 1.5 mi WNW of Mount Aeneas.
Stream bank under willows with Athyrium filix-femina, Polystichum lonchitis. Phenology: spores.

U.S.A., Montana, Lewis and Clark County: Lewis and Clark National Forest: Front Range: along spring south side of Deadman Hill, ca 4 air mi NW of South Fork Sun River Trail head
Elev. 2022 m.
47.5274° N, 112.9589° W; NAD 83, uncertainty 0.25 mi., GPS reading
Spring in heavily burned area; south aspect, 35-60% slope; sandstone bedrock. Phenology: vegetative only.
1. Dryopteris filix-mas (L.) Schott.

U.S.A., Montana, Fergus County: Lewis and Clark National Forest: Big Snowy Mountains: Crystal Lake to Knife Blade Ridge. Crystal Lake Trail head up trail.
Through coniferous forest, moderately dense to dense. Phenology: vegetative only.
Annotated by Rick McNeill.

U.S.A., Idaho, Idaho County: Clearwater Mountains: along Deadman Creek ca 1/4 mi N of U.S. Hwy 12 and the Lochsa River, ca 23 mi NE of Kooskia.
Under Thuja plicata and Abies grandis with Pteridium aquilinum, Actaea rubra, Adenocaulon bicolor, Athyrium filix-femina, and Boykinia major. Phenology: spores.

U.S.A., Colorado, Custer County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: south side of Lake Isabel from road bridge on Saint Charles River E to county line.
Roadside, grassy slopes, and lake margin. Phenology: spores.
Annotated by Brian Elliott.
with Craig Freeman

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Middle Fork Hay Creek, ca 6 air mi E of Alva, south tributary.
Deep shade in creek bottom, moist loam, 0% slope, with Betula papyrifera, Adenocaulon bicolor, Circaea spp. Phenology: flowering.
with N. Drozda

U.S.A., Montana, Phillips County: Little Rocky Mountains: White Horse Canyon, ca 1 air mi N of Beaver Mountain, ca 4 air mi N of Zortman; ca 41 air mi SW of Malta.
Stony riparian area on creek bottom. Phenology: spores.
Joseph L. M. Charboneau, 3656. 8/22/2010.

U.S.A., Idaho, Shoshone County: Clearwater/Bitterroot Mountains: St. Joe National Forest: Hobo Cedar Grove Botanical Area: 11 mi NE of Clarkia.
Under Thuja plicata with Clintonia uniflora, Tiarella unifoliata, Athyrium filix-femina, Asarum caudatum, Coptis occidentalis, and Trillium ovatum. Phenology: spores.

U.S.A., Montana, Mineral County: Clearwater/Bitterroot Mountains: Lolo National Forest: along trail to Hazel and Hub lakes, 14 mi W of St. Regis.
T18N R30W S36
Forest of Thuja plicata, Abies grandis, and Picea engelmannii with an understory of Vaccinium membranaceum, Menziesia ferruginea, Clintonia uniflora, Tiarella unifoliata, Smilacina stellata, and Athyrium filix-femina. Phenology: spores.

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: along Newlin Creek from Florence Mountain Park at Newlin Trailhead on County Road 15, S of Florence.
Picea engelmannii/Pseudotsuga menziesii. Phenology: vegetative only.
Annotated by Ronald L. Hartman.
with Elizabeth Mark

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: along Newlin Creek from Florence Mountain Park at Newlin Trailhead on County Road 15, S of Florence.
Picea engelmannii/Pseudotsuga menziesii. Phenology: spores.
Annotated by Ronald L. Hartman.
with Elizabeth Mark

U.S.A., Colorado, Custer County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: from the north side of Colo Hwy 96 to top of Rattlesnake Gulch, ca 1 mi E of McKenzie Junction (jct of Colo hwys 165 and 96).
Picea engelmannii and Pseudotsuga menziesii woodlands. Phenology: spores.
with Elizabeth Mark

U.S.A., Montana, Phillips County: Little Rocky Mountains: E of Lodgepole Creek, ca 1 1/4 air mi N of Green Mountain, ca 4.5 air mi NNW of Zortman; ca 42 air mi SW of Malta.
Moist ravine bottom. Phenology: spores.
Joseph L. M. Charboneau, 8204. 7/23/2011.

U.S.A., Colorado, Pitkin County: Sawatch Range: White River National Forest: Forest Road 105 above Hell Gate (Ivanhoe Creek), ca 16 air mi ENE of Aspen.
Base of granite cliffs and roadside. Phenology: spores.
Michael K. Kirkpatrick, 8821. 8/14/2011.
Accession: USFS 898950, Barcode: USFS0060543

U.S.A., South Dakota, Lawrence County: Black Hills National Forest: northern Black Hills: western tributary to False Bottom Creek, ca 4.5 air mi NW of Lead.
zone 13N, 593378E, 4917893N; NAD 83, Specimen Label
Growing with Toxicodendron rydbergii, Rubus parviflorus, and Osmorhiza longistylis in paper birch/beaked hazelnut forest in steep, shady drainage. Spearfish Quad Phenology: spores.
Accession: USFS 892396, Barcode: USFS0066513

U.S.A., Colorado, Ouray County: San Juan Mountains: Uncompahgre National Forest: Bear Creek Trail, trailhead off of U.S. Hwy 550 to Grizzly Bear Mine, ca 1.5 air mi SE of Ouray.
In rock crevice in mixed conifer on west-facing slopes. Phenology: spores.
1. Dryopteris filix-mas (L.) Schott.

U.S.A., Colorado, Ouray County: San Juan Mountains: Uncompahgre National Forest: Uncompahgre Gorge; along U.S. Hwy 550 just NE of Climax Creek, ca 2.5 air mi SE of Ouray.
In crack on montane canyon wall. Phenology: spores.
1. Dryopteris filix-mas (L.) Schott.

U.S.A., Idaho, Lemhi County: Salmon National Forest: Salmon River Mountains: Colson Creek near first switchback on Colson Creek Road, 12.7 air mi W of Shoup.
Well developed soil in hydric grand fir vegetation; 30° slope, WSW aspect; granite geology. 1-25 individuals apparent.

U.S.A., Idaho, Lemhi County: Salmon National Forest: Salmon River Gorge: lower canyon of Bear Basin Creek, 18.8 air mi W of Shoup.
Well developed soil in hydric woody riparian vegetation; 27° slope, SW aspect; phyllite geology. 1-25 individuals apparent.

U.S.A, Idaho, Lemhi County: Salmon National Forest: Northern Salmon River Mountains: lower Corn Creek gorge, 19.5 air mi W of Shoup.
In hydric coarse textured soil within woody riparian vegetation, 43 degree slope, SSE aspect, gneiss geology. 25-75 plants estimated. Phenology: buds.

U.S.A., Colorado, Pitkin County: Sawatch Range: White River National Forest: Forest Road 105 above Hell Gate (Ivanhoe Creek), ca 16 air mi ENE of Aspen.
Base of granite cliffs and roadside. Phenology: spores.
Michael K. Kirkpatrick, 8821. 8/14/2011.
Accession: USFS (unaccessioned), Barcode: USFS0061311

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Grizzly Creek, ca 4 air mi E of Glenwood Springs.
Canyon bottom, with cottonwood, Douglas fir, spruce, and dogwood.
James P. Vanderhorst, 1894. 8/24/1990.
Accession: USFS (unaccessioned), Barcode: USFS0061802

U.S.A., Idaho, Idaho County: Nez Perce National Forest: Selway-Bitterroot Wilderness: Bear Creek Pass Trail Head: ca 3 mi on Pack Trail 559 toward Spruce Lake, ca 16 air mi WNW of Darby, MT.
Subalpine, streamside.

U.S.A., Idaho, Idaho County: Nez Perce National Forest: Selway-Bitterrroot Wilderness: Bear Creek Pass: ca 6 mi on Forest Trail 516, between switchbacks and Granite Creek, ca 21 air mi WNW of Darby, MT.
Edge of western red cedar grove. Phenology: spores.

U.S.A., Idaho, Idaho County: Nez Perce National Forest: Selway River Drainage: Lookout Butte, Forest Road 1129, ca 15.5 air mi ENE of Stites.
Mixed coniferous forest with Douglas fir, western red cedar, and ponderosa pine. Phenology: spores.

U.S.A., Idaho, Clearwater County: Clearwater Mountains: North Fork Clearwater River at Aquarius (Purple Beach) Campground, ca 25 air mi NNE of Pierce.
Moist woodland surrounding campground with an overstory of towering, mature Thuja plicata and occasional Pinus monticola. Phenology: spores.
with B. E. Nelson

U.S.A., Idaho, Clearwater County: Clearwater Mountains: June Creek S of Forest Road 246, ca 1 air mi NW of Eagle Point and ca 27.5 mi NNE of Pierce.
Of northerly aspect, creek abundant with Thuja plicata of substantial size and occasional old growth Abies grandis with dbh of ca 5'; understory varied from largely depauperate with light gaps rich in Vaccinium membranaceum, to moisture-laden stands of Adiantum aleuticum and Oplopanax horridum. Phenology: spores.

U.S.A., Idaho, Clearwater County: Clearwater Mountains: along and above Beaver Creek, ca 2/3 air mi N of mouth of Steep Creek and ca 25 air mi NNE of Pierce.
Old growth stand, characterized by Thuja plicata/Adiantum aleuticum habitat type; along creek and up to prominent bench of toe slope. Phenology: spores.

U.S.A., Idaho, Clearwater County: Upper Basin: Giant Red Cedar National Recreation Trail 748: headwaters of Elk Creek, ca 12.5 air mi ENE of Bovill and ca 3 air mi N of Elk Butte.
Exceptional old-growth climax community of Thuja plicata, characterized by Thuja plicata/Athyrium filix-femina habitat type of northerly aspect. Phenology: spores.
with Joshua Miller

U.S.A., Idaho, Clearwater County: Clearwater Mountains: Aquarius Research Natural Area: Isabella Landing Trail 297 and vicinity adjacent to confluence of Isabella Creek and North Fork Clearwater River.
Mature and productive western red cedar forest upon riparian terrace, characterized by Thuja plicata/Athyrium filix-femina habitat type. Phenology: spores.

U.S.A., Idaho, Idaho County: Clearwater Mountains: ridge N of Middle Fork Clearwater River, along Forest Road 5515, ca 2 3/4 air mi SE of confluence of Lochsa and Selway rivers and ca 5 3/4 air mi S of Walde Mountain.
Shoulder-slope to ridgetop and along road in mixed coniferous forest, dominated by seral species such as Pinus ponderosa and Pseudotsuga menziesii with occasional mature Betula occidentalis. Phenology: spores.

U.S.A., Idaho, Clearwater County: Clearwater Mountains: Isabella Creek drainage: Trail 95 along Isabella Creek and Trail 96 along Elmer Creek, ca 25 air mi NNE of Cardiff Spur and ca 2-4 air mi NW of Black Mountain.
Most areas within collection extent were dramatically reshaped by recent fire in the last ten years; fire-scarred towering Thuja plicata snags a testament to the former climax community. Disturbed areas with prolific stands of Chamerion angustifolium and, when moisture allows, Illiamna rivularis abounds. Phenology: spores.
with Joshua Miller

U.S.A., Idaho, Clearwater County: Mallard Larkins Pioneer Area: north slope of Smith Ridge, along Forest Trail 240, ca 5-6 air mi NW of Black Mountain.
Mature, regal community of mountain hemlock characterized predominately by Tsuga mertensiana/Menziesia ferruginea habitat type. Phenology: spores.
with Joshua Miller

U.S.A., Idaho, Clearwater County: Pot Mountain Ridge: Fly Hill and surrounding area, via Forest Road 720, ca 3.5 air mi NW of Hidden Creek Campground, along Fly Creek.
Riparian of creek and surrounding Engelmann spruce-rich, mountain hemlock forest. Phenology: vegetative only.

U.S.A., Idaho, Clearwater County: Clearwater Mountains: Aquarius Campground along the North Fork Clearwater River, ca 25 air mi NNE of Pierce.
Riparian Thuja forest. Phenology: spores.
with Crista L O'Conner

U.S.A., Idaho, Clearwater County: Clearwater Mountains: slope and bench above Isabella Creek and Forest Road 700, just S of Dog Creek, ca 27 air mi NNE of Pierce.
Thuja forest with occasional Tsuga mertensiana. Phenology: spores.
with Crista L O'Conner

U.S.A., Idaho, Clearwater County: Clearwater Mountains: along Forest Road 5220 above Pine Creek, ca 1 air mi SSW of Cabin Point, ca 16 air mi NE of Pierce.
Brushy roadside and ditch in mixed conifer forest. Phenology: spores.
with Crista L O'Conner

U.S.A., Idaho, Idaho County: Clearwater Mountains: Jerry Johnson Hot Springs at Warm Springs Creek, ca 1 air mi SE of trailhead and ca 23 air mi NNE Lochsa Historical Ranger Station.
Wetlands and swales of standing water fed by outflow of thermal springs and groundwater flow. Thuja plicata common in periphery and Picea engelmannii occasional in standing water where Carex utriculata is abundant. Phenology: spores.

U.S.A., Idaho, Idaho County: Clearwater Mountains: Lochsa River at Black Canyon, between mile markers 113 and 114, along U.S. Hwy 12.
Rockface seeps of westerly to northerly aspects, cushioned by moss. Phenology: spores.

U.S.A., Idaho, Idaho County: Clearwater Mountains: Canyon Creek, at confluence with South Fork Canyon Creek, ca 4.5 air mi NNE of Lowell.
Riparian. Phenology: spores.

U.S.A., Idaho, Idaho County: Clearwater Mountains: Indian Grave Creek drainage along Forest Road 107, ca 2 air mi E of Indian Grave Peak.
Xeric road cut with rocky outcroppings; aspect south. Phenology: spores.

U.S.A., Idaho, Idaho County: Bitterroot Mountains: Nimi'ipuu/Lewis and Clark National Historic Trail: along Forest Road 500, ca 4 1/4 air mi NNW of Rocky Point Lookout.
Northerly-facing rock outcrop. Phenology: spores.

U.S.A., Idaho, Idaho County: Bitterroot Mountains: Colt Killed Creek and Trail 50, ca 4 air mi E of Powell Ranger Station.
Riparian terrace typified by Thuja plicata/Athyrium filix-femina habitat type. Phenology: spores.

U.S.A., Idaho, Idaho County: Clearwater Mountains: Mocus Point Trail 469, ca 15 air mi NE of Lochsa Historical Ranger Station.
Draw of northeasterly aspect with Pseudotsuga menziesii and Abies grandis in the overstory and a largely depauperate understory. Phenology: spores.

U.S.A., Idaho, Idaho County: Clearwater Mountains: Bimerick Meadows Research Natural Area: along Bimerick Creek and termination of Forest Road 5545, ca 11 air mi NE of Lowell.
Swampy meadows dominated by Carex utriculata, with slightly elevated areas inhabited by robust communities of Veratrum californicum. Phenology: spores.
with Mike Hays

U.S.A., Idaho, Clearwater County: Clearwater Mountain: Smith Ridge along Trail 240, ca 6 air mi NW Canyon Work Center.
North-facing shoulder slope in mature community of Tsuga mertensiana/Menziesia ferruginea. Phenology: spores.
with Gavin Gardner

U.S.A., Idaho, Clearwater County: Clearwater Mountains: Skull Creek along Forest Road 252, just S of Lost Ridge Trailhead and ca 7 1/4 air mi ENE Canyon Work Center.
Along riparian and road, beneath canopy of Alnus rubra and Thuja plicata. Phenology: spores.
with Gavin Gardner