SPIF

Erythronium shastense  D.A. York, J.K. Nelson, & D.W. Taylor

Shasta, Hanland Peak 7.5' USGS quad. Growing along the Hirz Mtn Road towards the lookout within the Whiskeytown-Shasta-Trinity National Recreation Area. Growing in a mossy limestone outcrop with a rocky road edge. Closed canopy with Pseudotsuga menziesii, Acer macrophylla, Viola sheltonii, Polystichum munitum, and moss. Growing downslope mostly in rocky areas., 1008m

SPIF

Erythronium californicum Purdy

Trinity, Hyampom Mountain 7.5' USGS quad. Underwood Mountain, headwaters of Buckhorn Creek on logging road ca. 0.2 mi S of Underwood Mountain Rd. Understory of mixed conifer forest of largely Pinus jeffreyi and Calocedrus decurrens, northeast slope; ca. 20,000 plants this site., 1280m

SPIF

Erythronium californicum Purdy

Humboldt, Board Camp Mountain 7.5' USGS quad. Lvs mottled brown; perianth white, aging pink, with yellow base; anthers cream. Pilot Ridge, ca 27 road miles S of Hwy 299 on USFS Road 1. Abundant on some north-facing slopes. Most plants outside harvest unit boundaries., 1219m

SPIF

Erythronium californicum Purdy

Trinity, Weaverville 7.5' USGS quad. Anthers cream colored. About 1-1/2 air mi E of Union Hill, about 2-1/2 air mi NE of Douglas City. Union Hill Road off of Hwy 299, then on private roads to easterly slope overlooking Trinity River facing McIntyre Gulch. Scattered cream-anthered flowers among 1000+ plants with lavender anthers that were identified as E. citrinum var. roderickii. Growing among grasses and forbs in open understory of Douglas-fir and black oak., 533m

SPIF

Erythronium californicum Purdy

Trinity, Papoose Creek 7.5' USGS quad. Bear Gulch, about 3 air mi NE of Trinity Dam., 1006m

SPIF

Erythronium californicum Purdy

Humboldt, Board Camp Mountain 7.5' USGS quad. 1-2 air miles NW of Board Camp Mountain. Growing within an inner coastal Douglas-fir forest in openings in the forest and open slopes of drainages. Filaments rounded (not flattened) and less than 1mm wide when fresh (a few right at 1mm wide). Exact location not recorded.

SPIF

Erythronium californicum Purdy

Trinity, Hoosimbim Mountain 7.5' USGS quad. ~1.97 air miles north of Middleton Gulch. Growing on a north facing cut bank that was open with little duff or surrounding plants in mixed conifer forest. Anthers were pink and tepals white with the tips tinged pink upon collection. Tom Engstrom visited site in 2008 and recorded the following: styles> 10 mm; often equal to or extending beyond the anthers; filaments thread-like; pollen white, cream, or purplish and varied from flower to flower., 672m

SPIF

Erythronium californicum Purdy

Trinity, Junction City 7.5' USGS quad. SW of Trinity River, 0.3 air miles S of confluence with Mckinney Gulch, SW of Junction City. Found at Erythronium citrinum var. roderickii occurrence #68. Found growing on uphill side of road cut bank among Arnica cordifolia, Arbutus menziesii, Draba verna, Adenocaulon bicolor, Tonella tenella, Calystegia malacophylla on N facing red clay soil., 549m

SPIF

Erythronium californicum Purdy

Trinity, Lewiston 7.5' USGS quad. Eastern slope of Tyler's Peak. Ultramafic soil. Open forest with Festuca californica, Pinus jeffreyi, Calocedrus decurrens, and Quercus kelloggii.

SPIF

Erythronium californicum Purdy

Shasta, Ono L 7.5' USGS quad., 853m

SPIF

Erythronium citrinum var. citrinum S. Watson

Tehama, Pony Buck Peak 7.5' USGS quad. E of the stream located directly below road to Round Mtn. Campsite #1. N aspect, 15% slope, 30-45% canopy cover, granite rocks scattered with thick pine needle duff. Open mixed conifer forest slope with Achillea millefolium, Dicentra uniflora, Ceanothus cordulatus, Dodecatheon hendersonii, Viola sheltonii, Claytonia rubra, and grasses. Styles ranged 5-7mm long., 1662m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Tangle Blue Lake 7.5' USGS quad. Mostly past flowering. Some anthers lavender and perianth golden at base. Large population scattered over hillside., 1280m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Tangle Blue Lake 7.5' USGS quad. Bear Creek Trail at creek crossing, about 0.9 rd mi W of Hwy 3. Known site of Roderick's fawn lily; NDDB occurrence #2., 1097m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Carrville 7.5' USGS quad. Eagle Creek Rd off Hwy 3. From Sec. 32 line on Hwy 3 for about 0.5 mile along Eagle Creek Rd. Main population is W of road. Mixed conifer forest on serpentine soil; flat to about 30degrees E aspect. Plants growing in bare mineral soil to light litter with little herbaceous or grass competition., 823m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Tangle Blue Lake 7.5' USGS quad. Hwy 3; E on Ramshorn Rd; N on Road 39N26; W on spur that loops into SE corner of Sec 11. Uphill from that spur, ca. 0.2 rd mi after it enters Sec 11. In rocky areas, on road cut bank, and under open canopy on slope with easterly aspect. Serpentine soil. About 2,000 plants. (original UTM coordinates appear to have been miss-typed)., 1417m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Trinity Center 7.5' USGS quad. Logging road ca. 3 road miles SE of Norwegian Ranch, Clair Engle Reservoir (ca. 2.75 air mile S of Trinity Center), on the watershed divide of South Twin Gulch and Moss Gulch. Roadcut in young Quercus kelloggii-Cornus nuttallii forest on northerly facing slope, growing in loose colluvium, metavolcanic substratum., 899m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Trinity Center 7.5' USGS quad. Logging road ca. 3 road miles SE of Norwegian Ranch, Clair Engle Reservoir (ca. 2.75 air mile S of Trinity Center), on the watershed divide of South Twin Gulch and Moss Gulch. Roadcut in young Quercus kelloggii-Cornus nuttallii forest on northerly facing slope, growing in loose colluvium, metavolcanic substratum., 899m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Carrville 7.5' USGS quad. Growing on the road bank of Eagle Creek Loop Road., 812m

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Covington Mill 7.5' USGS quad. DFG EO# 7. On the westside of Hwy 3 at Greenhorn Gulch. 56 total plants (30%flwr and 70% veg). Style length 7-9mm long. Anthers purplish, pollen yellow to rust brown. Growing on south side of creek in moist N-facing swale under Pseudotsuga menziesii, Calocedrus decurrens, and Cornus sessilis. Growing with Berberis nervosa, Linnea borealis, Trientalis latifolia

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Trinity Center 7.5' USGS quad. Side of road.

SPIF

Erythronium citrinum var. roderickii Shevock & G.A.Allen

Trinity, Trinity Center 7.5' USGS quad. Usher Hill on the E side of Hwy 3. Growing along the stream and along the dirt road edges in a mixed conifer forest on ultramafic soil. Anther color a pale pink rather than the typical maroon and the pollen was very yellow., 985m

SPIF

Erythronium grandiflorum subsp. grandiflorum Pursh

Humboldt, Board Camp Mountain 7.5' USGS quad. ~1.89 air miles NW of Board Camp Mountain. Growing within an inner coastal Douglas-fir forest in a small drainage with Vancouveria planipetala, Epilobium angustifolium, Potentilla glandulosa, and grasses. Yellow tepals and no mottling on leaves. Also observed in 04N04E SW 1/4 of Sec 21 on moist slope in forest.

SPIF

Trinity, Ycatapom Peak 7.5' USGS quad. Growing along edges of creek near Boulder Lake where the grass is just starting to sprout. Granitic substrate with adjacent shrubby hardwoods present. Pollen as well as anthers are pale cream. ID confirmed by Dean Taylor., 1929m

SPIF

Erythronium klamathense Applegate

Shasta, Dead Horse Summit 7.5' USGS quad. Bartle Gap (ca. 15 air miles N of Burney); Shasta-Trinity NF. North facing slopes in forest of Abies magnifica-Pinus lambertiana-Calocedrus decurrens, growing in Acer glabrum-Corylus thickets; just after snowmelt., 1646m

SPIF

Erythronium klamathense Applegate

Shasta, Pondosa 7.5' USGS quad. S edge of Dickson Flat. Growing on edge of meadow on the highway side on disturbed and patchy-bare soil. Growing with, Dodecatheon hendersonii, Collinsia linearis, Lotus purshianus, grasses, Lithophragma, and Ceanothus prostratus. Surrounded by a mixed conifer forest of Calocedrus decurrens, Pinus Ponderosa, and Abies concolor., 1255m

SPIF

Erythronium klamathense Applegate

Shasta, Skunk Ridge 7.5' USGS quad. On the N side of Red Mtn. Growing within a predominantly fir forest on the NE and ENE facing slope in old skid trails, young conifer plantation, road edge, under and around Acer circinatum, and in openings of Quercus vaccinifolia. 0-90% canopy. Moist soil likely where snow has lingered. Tepals cream-white with bright yellow bases.

SPIF

Erythronium multiscapideum (Kellogg) A.Nelson & P.B.Kenn.

Tehama, Dales 7.5' USGS quad. Approximately 1.72 miles past Hogs Lake on Hwy 36 NE of Red Bluff. Found on hillside between Palmer Gulch and Supan Gulch under Blue Oaks. Cleared by CDC in Fall 2007, but Toxicodendron diversilobum and Symphoricarpos mollis were sprouting back. Growing with Chlorogalum pomeridianum, Fritillaria affinis, Galium aparine and G. bolanderi, Thysanocarpus curvipes, Ranunculus occidentalis, and Claytonia perfoliata. About 2-3,000 plants covering hillside., 167m

SPIF

Erythronium multiscapideum (Kellogg) A.Nelson & P.B.Kenn.

Tehama, Dales 7.5' USGS quad. Near the junction of Supan Gulch and Hwy 36 East. About 5 miles east of Hog Lake. Growing on recently burned and cleared hillside by the CDC on north facing bank of Hwy 36. Growing with Quercus douglasii, Toxicodendron diversilobum, Ranunculus occidentalis, Thysanocarpus curvipes, Fritillaria affinis, Pentagramma triangularis, and Collinsia sparsiflora. Plants not rhizomatous., 185m

SPIF

Erythronium purpurascens S.Watson

Plumas, Haskins Valley 7.5' USGS quad. Both sides of road at Buckhorn Creek crossing, ca. 1 air mi E Granite Basin. Along Buckhorn Creek. Abundant on southern bank., 1676m

SPIF

Erythronium revolutum Sm.

Humboldt, Taylor Peak 7.5' USGS quad. Growing in thick leaf litter in a coastal Douglas-fir forest on a northern facing slope of the North Fork of the Mattole River approximately 1.51 air miles north of Taylor Peak. Associated plants: Rosa gymnocarpa, Scoliopus bigelovii, Acer macrophyllum, Holodiscus discolor, Polystichum munitum, Trientalis latifolia, Iris sp, and Lithocarpus densiflorus. 90% canopy cover. Petals were white with light pink on the upper half at time of collection.

SPIF

Erythronium tuolumnense Applegate

Tuolumne, Twain Harte 7.5' USGS quad. Solid yellow flowers. Off Italian Bar Rd, about 2 air mi NNW of town of Mi-Wuk Village. This is NDDB occurrence #1. Growing in clumps in forest openings and under manzanita shrubs., 1189m

SPIF

Erythronium shastense D.A.York, J.K.Nelson & D.W.Taylor

United States, California, Shasta, 35N03W SW 1/4 of SW 1/4 of Section 7. Growing along the Hirtz Mtn Road towards the lookout within the Whiskeytown-Shasta-Trinity National Recreation Area. Growing in a mossy limestone outcrop with a rocky road edge. Closed canopy with Pseudotsuga menziesii, Acer macrophylla, Viola sheltonii, Polystichum munitum, and moss. Growing downslope mostly in rocky areas. Lat/Lon in NAD27 Conus., 40.89862 -122.257581, 1008m