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Table 3.3-3. Special-Status Plant Species with Potential to Occur in the Central El Dorado Hills Specific Plan Project Region Page of

Scientific Name Common Name

Statusa

Geographic Distribution

General Habitat Description

Blooming Period

Potential for Occurrence in CEDHSP Area

Potential for Occurrence in the Offsite Infrastructure Improvement Areas

Federal/State/
CNPS

Allium jepsonii

Jepson's onion



–/–/1B.2

Sierra Nevada foothills in Butte, El Dorado, Placer, and Tuolumne Counties

Serpentine or (volcanic) basalt outcrops in oak woodland, chaparral, and lower montane coniferous forest; 300–1320 meters

Apr–Aug

Marginal habitat is present on rock outcrops in oak woodland in the project area. Nearest recorded occurrences are approximately 9 miles northeast of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak woodland in the 85-acre open space area.

Potential for occurrence in oak woodlands.

Balsamorhiza macrolepis

Big-scale balsamroot



–/–/1B.2

Scattered occurrences in the Coast Ranges and Sierra Nevada foothills

Sometimes on serpentine soils in chaparral, cismontane woodland, valley and foothill grassland; 90–1,555 meters

Mar–Jun

Suitable habitat without serpentine soils is present in annual grassland and oak woodland in the project area. Nearest recorded occurrence is approximately 10 miles north of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in annual grassland and oak woodland in the 85-acre open space area.

Potential for occurrence in annual grassland and oak woodland.

Calystegia stebbinsii

Stebbins’ morning-glory



E/E/1B.1

Northern Sierra Nevada foothills with reported occurrences in El Dorado and Nevada Counties

Serpentine or gabbroic soils in chaparral openings, cismontane woodland; 185–730 meters

Apr–Jul

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 5 miles east of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Ceanothus roderickii

Pine Hill ceanothus



E/R/1B.2

Endemic to El Dorado County

Serpentine or gabbro soils in chaparral or cismontane woodland; 245–630 meters

Apr–Jun

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 4 miles north of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Chlorogalum grandiflorum

Red Hills soaproot



–/–/1B.2

North and central Sierra Nevada foothills: Amador, Butte, Calaveras, El Dorado, Placer, and Tuolumne Counties

Serpentine or gabbro soils in chaparral, lower montane coniferous forest, and cismontane woodland; 245–1240 meters

May–Jun

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 4 miles northeast of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Clarkia biloba ssp. brandegeeae

Brandegee’s clarkia



–/–/4.2

Northern Sierra Nevada foothills from Butte to El Dorado Counties

Chaparral, cismontane woodland, lower coniferous forest, often on roadcuts; 73–915 meters

May–Jul

Suitable habitat is present in oak and riparian woodland in the project area. The nearest recorded occurrence is approximately 2 miles north of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Potential for occurrence in oak and riparian woodlands.

Downingia pusilla

Dwarf downingia



–/–/2B.2

Central Valley

Vernal pools and mesic valley and foothill grasslands; below 445 meters

Mar-May

Suitable habitat is present in the seeps, ponds, and seasonal wetlands in the project area. The nearest recorded occurrence is approximately 7 miles west of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in seasonal wetland swale in the 85-acre open space area.

Potential for occurrence in seeps, ponds, and seasonal wetlands.

Erigeron miser

Starved daisy



–/–/1B.3

Lassen, Mono, Nevada and Placer Counties

Rocky places in upper montane coniferous forest; 1840–2620 meters

Jun–Oct

No coniferous forest habitat is present in the project area.

No coniferous forest habitat is present in the offsite areas.

Eryngium pinnatisectum

Tuolumne button-celery



–/–/1B.2

Amador, Calaveras, Sacramento, and Tuolumne Counties

Vernal pools and moist areas in cismontane woodland and lower montane coniferous forest; 70–915 meters

May–Aug

Marginal habitat is present in the seasonal wetlands in the southeast part of the project area. The nearest recorded occurrence is a historic (1941) occurrence approximately 10.5 miles north of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in seasonal wetland swale in the 85-acre open space area.

Potential for occurrence in seasonal wetlands.

Fremontodendron decumbens

Pine Hill flannelbush



E/R/1B.2

Pine Hill area in El Dorado County, Grass Valley vicinity in Nevada County, Yuba County

Rocky gabbro or serpentinite soils in chaparral, cismontane woodland; 425–760 meters

Apr–Jul

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 5 miles northeast of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Galium californicum ssp. sierrae

El Dorado bedstraw



E/R/1B.2

Endemic to El Dorado County

On gabbroic soils in chaparral, cismontane woodland, lower montane coniferous forest; 100–585 meters

May–Jun

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 5 miles east of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Gratiola heterosepala

Boggs Lake hedge-hyssop



–/E/1B.2

Inner North Coast Ranges, Central Sierra Nevada foothills, Sacramento Valley and Modoc Plateau: Fresno, Lake, Lassen, Madera, Merced, Modoc, Placer, Sacramento, Shasta, Siskiyou, San Joaquin, Solano, and Tehama Counties; also Oregon

Clay soils in areas of shallow water, lake margins of swamps and marshes, vernal pool margins; 10–2375 meters

Apr–Aug

Marginal habitat is present in ponds and seasonal wetlands in the project area. Nearest recorded occurrence is approximately 5 miles southwest of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in seasonal wetland swale in the 85-acre open space area.

Potential for occurrence in ponds and seasonal wetlands.

Helianthemum suffrutescens

Bisbee Peak rush-rose



–/–/3.2

Amador, Calaveras, El Dorado, Mariposa, Sacramento and Tuolumne Counties

Chaparral openings, often on serpentinite, gabbro, or Ione soils; 45–840 meters

Apr–Jun

No chaparral habitat is present in the project area.

No chaparral habitat is present in the offsite areas.

Horkelia parryi

Parry’s horkelia



–/–/1B.2

Amador, Calaveras, El Dorado, and Mariposa Counties

Chaparral, or cismontane woodland openings, especially Ione formation, dry slopes; 80–1035 meters

Apr–Sep

Marginal habitat is present on in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 7.5 miles northeast of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Potential for occurrence in oak and riparian woodlands.

Juncus leiospermus var. ahartii

Ahart’s dwarf rush



–/–/1B.2

Eastern Sacramento Valley, northeastern San Joaquin Valley with occurrences in Butte, Calaveras, Placer, Sacramento, Tehama, and Yuba Counties

Wet areas in valley and foothill grassland, vernal pool margins; 30–229 meters

Mar–May

Marginal habitat is present in the seeps, ponds, and seasonal wetlands in the project area. The nearest recorded occurrence is approximately 13 miles southwest of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in seasonal wetland swale in the 85-acre open space area.

Potential for occurrence in seeps, ponds, and seasonal wetlands.

Legenere limosa

Legenere


–/–/1B.1

Primarily in the lower Sacramento Valley, also from north Coast Ranges, northern San Joaquin Valley and the Santa Cruz Mountains

Deep, seasonally wet habitats such as vernal pools, ditches, marsh edges, and river banks; below 880 meters

Apr–Jun

Marginal habitat is present in ponds, seeps, and seasonal wetlands in the project area. Nearest recorded occurrence is approximately 9 miles southwest of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in seasonal wetland swale in the 85-acre open space area.

Potential for occurrence in seeps, ponds, and seasonal wetlands.

Navarretia myersii ssp. myersii

Pincushion navarretia



–/–/1B.1

Central Valley in Amador, Calaveras, Merced, Placer, and Sacramento Counties

Edges of vernal pools; 20–330 meters

Apr–May

Marginal habitat is present in ponds and seasonal wetlands in the project area. Nearest recorded occurrence is approximately 7 miles west of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in seasonal wetland swale in the 85-acre open space area.

Potential for occurrence in ponds and seasonal wetlands.

Orcuttia tenuis

Slender Orcutt grass



T/E/1B.1

Sierra Nevada and Cascade Range foothills from Siskiyou to Sacramento Counties

Vernal pools; 35–1,760 meters

May–Sep (Oct)

No vernal pool habitat is present in the project area.

No vernal pool habitat is present in the offsite areas.

Orcuttia viscida

Sacramento Orcutt grass



E/E/1B.1

Endemic to Sacramento County

Vernal pools; 30–100 meters

Apr–Jul

No vernal pool habitat is present in the project area.

No vernal pool habitat is present in the offsite areas.

Packera layneae

Layne’s ragwort (or Layne's butterweed)



T/R/1B.2

Northern Sierra Nevada foothills, Butte, El Dorado, Placer, Tuolumne, and Yuba Counties

Rocky serpentinite or gabbro soils in chaparral and foothill woodland; 200–1000 meters

Apr–Aug

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 4 miles east of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Sagittaria sanfordii

Sanford’s arrowhead



–/–/1B.2

Scattered locations in Central Valley and Coast Ranges

Freshwater marshes, sloughs, canals, and other slow-moving water habitats; below 650 meters

May–Oct

Suitable habitat is present in the ponds, intermittent drainages, and creek in the project area. Nearest recorded occurrence is approximately 3 miles south of the project area. Species was not observed during the June and September 2012 or April and May 2013 surveys. Potential to occur in ponds and the intermittent drainage in the 85-acre open space area.

Potential for occurrence in marsh, ponds, intermittent/ ephemeral drainages, ditches, and creek.

Wyethia reticulata

El Dorado County mule ears



–/–/1B.2

El Dorado and Yuba Counties

On clay or gabbroic soils in chaparral, cismontane woodland, and lower montane coniferous forest; 185–630 meters

Apr–Aug

Suitable habitat is present on Rescue soils in oak and riparian woodland in the project area. Nearest recorded occurrence is approximately 4 miles northeast of the project area. Species was not observed during the June 2012 or April and May 2013 surveys. Potential to occur in oak and riparian woodland in the 85-acre open space area.

Unlikely to occur, no Rescue soils are mapped in offsite areas.

Sources: California Native Plant Society 2013; California Department of Wildlife 2013.

a Status explanations:

Federal

T = listed as threatened under the federal Endangered Species Act.

E = listed as endangered under the federal Endangered Species Act.

– = no listing.



State

E = listed as endangered under the California Endangered Species Act.

R = listed as rare under the California Endangered Species Act.

– = no listing.



California Native Plant Society (CNPS) California Rare Plant Rank

1B = List 1B species: rare, threatened, or endangered in California and elsewhere.

2B = List 2B species: plants rare, threatened, or endangered in California, but more common elsewhere.

3 = List 3 species: plants about which we need more information – a review list.

4 = List 4 species: plants of limited distribution – a watch list.

CNPS Code Extensions:

0.1 = seriously endangered in California (over 80% of occurrences threatened / high degree and immediacy of threat).

0.2 = fairly endangered in California (20–80% of occurrences threatened).






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