Appendix E Special-Status Plants€¦ · quads surrounding it: French Corral, Nevada City, North...

Appendix E Special-Status Plants

DS Canal Flume Replacement Project Nevada Irrigation District

Special-Status Plant Survey

Prepared for:

Nevada Irrigation District 1036 West Main Street

Grass Valley, CA 95945 Contact: Tonia Tabucchi Herrera

Prepared by:

ICF Jones & Stokes 630 K Street, Suite 400 Sacramento, CA 95814

Contact: Antero Rivasplata 916/737-3000

September

ICF Jones & Stokes. 2008. DS Canal Flume Replacement Project Nevada Irrigation District Special-Status Plant Survey. September. (ICF J&S 06551.06.) Sacramento, CA. Prepared for: Nevada Irrigation District.

DS Canal Flume Replacement Project Nevada Irrigation District Special-Status Plant Survey

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Contents

Page

Special-Status Plant Survey ........................................................................................... 1 Introduction ................................................................................................ 1 Project Description..................................................................................... 1 Methods ..................................................................................................... 2 Results ....................................................................................................... 2

Vegetation Communities ...................................................................... 3 Conclusions ............................................................................................... 4 References Cited ....................................................................................... 4

Appendix A Photographs


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Tables and Figures

Table Follows Page

1 Special-Status Plants Identified as Having the Potential to Occur in the Study Area for the DS Canal ................................................................. 4

2 Plants Observed During April 16, May 28, and July 25, 2008 Special-Status Plant Surveys Nevada Irrigation District, DS Canal Flume Replacement Project, Nevada County, California ............................ 4

Figure Follows Page

1 Regional Vicinity ........................................................................................ 4

2 DS Canal Flume Replacement Project Vicinity .......................................... 4

Acronyms and Abbreviations

CNDDB California Natural Diversity Database CNPS California Native Plant Society msl mean sea level NID Nevada Irrigation District proposed project DS Canal Flume Replacement Project


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Special-Status Plant Survey

Introduction Nevada Irrigation District’s (NID’s) proposed DS Canal Flume Replacement Project (proposed project) is located in Nevada County, California (Figure 1). The proposed project area encompasses approximately 1.5 miles of NID’s DS Canal located approximately 1 mile south of Nevada City in the northern Sierra Nevada foothill region. The proposed project area includes eight flumes (Flumes 13 through 19 and Flume 23) that span eight drainages of varying widths as well the berms on either side of the canal (Figure 2). The Gracie Road crossing, existing twin culverts, will be replaced as part of this project.

ICF Jones & Stokes botanists Ramona Robison and Lisa Webber conducted spring and summer botanical surveys throughout the proposed project area to determine whether any special-status plants are present.

Project Description The project area is in the Sierra Nevada foothill region at approximately 2,900 feet (885 meters) above mean sea level (msl) in elevation, and the surrounding topography is hilly. Rural residences are present along most of the proposed project area. The eastern end of the project (Flume 13) is located south of Banner Mountain Trail, and the canal continues west from that location, crosses under Gracie Road, and ends near Apple Orchard Lane (Flume 23). The proposed project area includes potential access roads and staging areas.

This proposed project consists of the replacement of the eight elevated wood-supported metal flumes along the DS Canal with steel supported, elevated 72-inch pipe flumes. The existing flumes connect the DS Canal, where it spans natural drainages, to provide gravity flow along the course of the canal. The Gracie Road crossing twin culvert is proposed to be replaced with a box culvert of similar size pipe. Changes to the DS Canal itself will be limited to the areas immediately adjacent to the upstream and downstream ends of the flumes. At those locations, short stretches of canal may be relocated and the flume entry and exit points will be shotcreted (that is, lined with air blown concrete) in order to avoid erosion. This project does not include shotcreting or otherwise changing any other portions of the DS Canal other than as discussed in this project. Work will be limited to the areas adjoining the eight flumes.

Nevada Irrigation District


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Methods Prior to the field investigation, a records search of the California Native Plant Society’s (CNPS) online Inventory of Rare and Endangered Plants (California Native Plant Society 2008) and the California Natural Diversity Database (CNDDB) was conducted (California Natural Diversity Database 2008). The records search included the Grass Valley USGS quad map and the following quads surrounding it: French Corral, Nevada City, North Bloomfield, Chicago Park, Colfax, Lake Combie, Wolf, and Rough and Ready. The records searches identified 15 special-status plant species as having the potential to occur in the project area. Table 1 lists the legal status, habitat and bloom times, and likelihood of each special status plant species to occur within the project area. Six of the 15 special-status species listed in Table 1 have the potential to occur in the proposed project area:

Brandegee’s clarkia (Clarkia biloba ssp. brandegeeae),

Butte County fritillary (Fritillaria eastwoodiae),

red-anthered rush (Juncus marginatus var. marginatus),

Cantelow’s lewisia (Lewisia cantelovii),

bog club-moss (Lycopodiella inundata), and

brownish-beaked rush (Rhynchospora capitellata).

The other nine special-status plant species are either out of elevational range or have specific habitat (mesic grassland and woodland) or microhabitat requirements that are not present in the project area (e.g., gabbroic soils or serpentinite). The two mosses identified in the records searches, Norris’ beard-moss (Didymodon norrisii) and elongate copper moss (Mielichhoferia macrocarpa) have specific habitat requirements that do not occur in the project area. Both grow on wet rock outcrops, and the elongate copper moss is usually found beside or behind waterfalls (Vitt et al. 1988).

Ms. Robison and Ms. Webber, accompanied by Ms. Tonia Tabucchi Herrera of NID, conducted the three special-status plant surveys on April 16, May 28, and July 25, 2008. The timing of the surveys coincided with the recorded blooming periods for all of the special-status plant species identified during the prefield investigation as having the potential to occur in the project area (California Native Plant Society 2008). The botanists and Ms. Herrera walked throughout the proposed project area, including the flume replacement areas, along the canal berms, and access roads that encompassed the potential extent of disturbance.

Results A list of plants observed during the three plant surveys (Table 2) and photographs of the project area (Appendix A) are included with this report. No



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special-status plants or natural communities of concern were observed during the survey. Some plants were observed in the same genera as those on the list of special-status plants with potential to occur in the project area, but all were examined to determine their particular species to ensure that they were not members of the special-status species. During the April survey, the botanists observed brown bells (Fritillaria micrantha), which is similar to Butte County fritillary (F. eastwoodiae), but has distinctly recurved style branches. In addition, Butte County fritillary has petals that are more reflexed and red-orange in color that those in the specimen observed in the project area (see the photograph in Appendix A).

The vegetation communities observed during the survey are described below.

Vegetation Communities Starting at the eastern end of the project, flumes 13 through 19 are located in the lower montane coniferous forest (mixed conifer series, Sawyer and Keeler-Wolf 1995) vegetation community. The mixed coniferous forest is dominated by ponderosa pine (Pinus ponderosa), incense cedar (Calocedrus decurrens), white fir (Abies concolor), and Douglas fir (Pseudotsuga menziesii). Other tree species common in the proposed project area are California black oak (Quercus kelloggii), madrone (Arbutus menziesii) and mountain dogwood (Cornus nuttallii). Common species found in the understory are whiteleaf manzanita (Arctostaphylos viscida), creeping snowberry (Symphoricarpos mollis), mountain misery (Chamaebatia foliolosa), poison oak (Toxicodendron diversilobum) and hazelnut (Corylus cornuta var. californica). In disturbed areas located along the canal access road Scotch broom (Cytisus scoparius), non-native annual grasses, bracken fern (Pteridium aquilinum var. pubescens) and lupines (Lupinus spp.) are present in the open upland areas.

In drainages and ravines where natural streams cross under the flumes more mesic vegetation is present. Most of the drainages below the flumes are v-shaped and consist of a narrow channel with a bed and bank that has intermittent water flow. Some of the species observed in these areas include bleeding hearts (Dicentra formosa), rushes (Juncus spp.), and nut sedge (Cyperus eragrostis). The drainage spanned by flume 16 was the only drainage with a floodplain with riparian vegetation. White alder (Alnus rhombifolia) dominated the canopy with curly dock (Rumex crispus) in the herbaceous layer.

Flume 23 is located in the lower montane coniferous forest (black oak series, Sawyer and Keeler-Wolf 1995) biological community. This habitat at flume 23 is similar to lower montane coniferous forest habitat identified for flumes 13 through19, except that black oak is the dominant tree species. Other species observed in that location were bigleaf maple (Acer macrophyllum), black walnut (Juglans californica var. hindsii), English ivy (Hedera helix), Himalaya blackberry (Rubus discolor) and periwinkle (Vinca major). This emergent marsh



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is at the mouth of a pond located below the flume and is fed by a seep uphill of the flume.

Conclusions No special-status plants occur within the project area. Since botanical surveys were conducted during the bloom time of special-status plants potentially occurring within the project area, no additional surveys are recommended. The proposed construction activities within the project area would not have an effect on special-status plants.

References Cited California Native Plant Society. 2008. Inventory of Rare and Endangered

Plants (online edition, v7-08a). Available: <http://cnps.web.aplus.net/cgi-bin/inv/inventory.cgi>. Accessed April 17, 2008 (edition v7-08b accessed for update on September 10, 2008). Sacramento, CA.

California Natural Diversity Database. 2008. RareFind 3, Version 3.1.0 (February 2, 2008 update). Sacramento, CA: California Department of Fish and Game. Sacramento, CA.

Vitt, D. H., J. E. Marsh, and R. B. Bovey. 1988. Mosses, Lichens, and Ferns of Northwest North America. Lone Pine Publishing. Vancouver, BC, Canada.

Table 1. Special-Status Plants Identified as Having the Potential to Occur in the Study Area for the DS Canal Page 1 of 3

Common and Scientific Names

Status Federal/State/CNPS Geographic Distribution/Floristic Province Habitat Requirements Blooming Period

Stebbin’s morning-glory Calystegia stebbinsii

E/E/1B.1 Known from fewer than 15 occurrences in the northern Sierra Nevada foothills in El Dorado and Nevada Counties

Gabbro or serpentinite soils in chaparral openings, cismontane woodland; 607–2,395 feet (185–730 meters)

April–July

Red Hills soaproot Chlorogalum grandiflorum

–/–/1B.2 Scattered occurrences in the northern Sierra Nevada foothills from Placer to Tuolumne Counties

Chaparral, cismontane woodland, lower montane coniferous forest in serpentine, gabbro, or other soils; 804–3,855 feet (245–1,170 meters)

May–June

Brandegee’s clarkia Clarkia biloba ssp. brandegeeae

–/–/1B.2 Butte, El Dorado, Nevada, Placer, and Yuba Counties.

Chaparral, cismontaine woodland, often on roadcuts; 239–3,002 feet (73–915 meters)

May–July

Norris feet beard-moss Didymodon norrisii

–/–/2.2 Scattered occurrences in Contra Costa, Colusa, Humboldt, Lake, Madera, Monterey, Nevada, San Benito, Santa Cruz, Tehama, Tulare, and Tuolumne Counties; Oregon

Intermittently wet areas on rock substrates in cismontane woodland, lower montane coniferous forest; 1968–6,473 feet (600–1,973 meters)

N/A

Pine Hill flannelbush Fremontodendron decumbens

E/R/1B.2 Known from fewer than 20 occurrences in El Dorado, Nevada (?), and Yuba (?) Counties

Rocky gabbro or serpentinite soils in chaparral, cismontane woodland; 1,394 to 2,493 feet (425–760 meters)

April–July

Butte County fritillary Fritillaria eastwoodiae

–/–/3.2 Scattered occurrences in Sierra Nevada foothills from Shasta to El Dorado Counties

Chaparral, cismontane woodland, and openings in lower montane coniferous forest, sometimes in serpentine soils; 164–4,921 feet (50–1,500 meters)

March–June

Red-anthered rush Juncus marginatus var. marginatus

–/–/2.2 Northern Sierra Nevada foothills in Nevada County; Arizona and elsewhere

Marshes and swamps; 2,690–3,281 feet (820–1,000 meters)

July

Dubious pea Lathyrus sulphureus var. argillaceus

–/–/3 Klamath Ranges, North Coast Ranges, Sierra Nevada in El Dorado, Nevada (?), Placer, Shasta, and Tehama Counties

Cismontane woodland, lower and upper montane coniferous forest; 492–1,001 feet (150–305 meters)

April–May

Table 1. Continued Page 2 of 3

Common and Scientific Names

Status Federal/State/CNPS Geographic Distribution/Floristic Province Habitat Requirements Blooming Period

Cantelow’s lewisia Lewisia cantelovii

–/–/1B.2 Canyons of the Sacramento River, North and Middle Forks of the Feather River, and Yuba River

Mesic areas in broadleaved upland forest, chaparral, cismontane woodland, lower montane coniferous forest in granitic soils, sometimes in serpentine seeps; 1,083–4,495 feet (330–1,370 meters)

May–October

Bog club-moss Lycopodiella inundata

–/–/2.2 Humboldt and Nevada Counties; Idaho, Oregon, Washington

Coastal bogs and fens, mesic areas in lower montane coniferous forest, lake margins between 5–1,000 meters (16–3,281 feet)

June–September (fertile period)

Elongate copper-moss Mielichhoferia elongata

–/–/2.2 Sierra Nevada from Nevada to Fresno Counties; Coast Ranges from Humboldt to Santa Cruz Counties

Cismontane woodland in vernally moist areas on metamorphic rock substrates; 1,640–4,265 feet (500–1,300 meters)

N/A

Follett’s monardella Monardella follettii

–/–/1B.2 Known from fewer than 20 occurrences in Nevada and Plumas Counties

Rocky and/or serpentine soils in lower montane coniferous forest; 1,968–6,562 feet (600–2,000 meters)

June–September

Cedar Crest popcorn-flower Plagiobothrys glyptocarpus var. modestus

–/–/3 Northern Sierra Nevada foothills in Nevada and Yuba (?) Counties

Cismontane woodland, moist grassland; 2,854 feet (870 meters)

April–June

Brownish-beaked rush Rhynchospora capitellata

–/–/2.2 Scattered occurrences in northwestern California and northern Sierra Nevada foothills

Mesic areas in lower and upper montane coniferous forest, meadows and seeps, marshes and swamps; 1,493–6,562 feet (455–2,000 meters)

July–August

Scadden Flat checkerbloom Sidalcea stipularis

–/E/1B.1 Known from only three occurrences in Grass Valley in Nevada County

Montane freshwater marshes and swamps; 2,296–2,395 feet (700–730 meters)

July–August

Status explanations: Federal E = listed as endangered under the federal Endangered Species Act. – = no listing.

Table 1. Continued Page 3 of 3

State E = listed as endangered under the California Endangered Species Act. R = listed as rare under the California Native Plant Protection Act (this category is no longer used for newly listed plants, but some plants previously listed as rare retain this designation) – = no listing. California Native Plant Society (CNPS) 1B = List 1B species; rare, threatened, or endangered in California and elsewhere. 2 = List 2 species; rare, threatened, or endangered in California but more common elsewhere. 3 = List 3 species: more information is needed about this plant 0.1 = seriously endangered in California. 0.2 = fairly endangered in California. ? = population status in County uncertain

Table 2. Plants Observed During April 16, May 28, and July 25, 2008 Special-Status Plant Surveys Nevada Irrigation District, DS Canal Flume Replacement Project, Nevada County, California

Scientific Name Common Name Family

Abies concolor White fir Pinaceae

Acer circinatum Vine maple Aceraceae

Acer macrophyllum Big-leaf maple Aceraceae

Adenocaulon bicolor Trail plant Asteraceae

Aegilops triuncialisa Goatgrass Poaceae

Agoseris sp. Agoseris Asteraceae

Ailanthus altissimaa Tree of heaven Simaroubaceae

Aira caryophyllea Silver hairgrass Poaceae

Alnus rhombifolia White alder Betulaceae

Aquilegia formosa Western columbine Ranunculaceae

Arbutus menziesii Pacific madrone Ericaceae

Arctostaphylos viscida ssp. viscida Manzanita Ericaceae

Artemisia douglasiana California mugwort Asteraceae

Avena fatuaa Wild oat Poaceae

Baccharis pilularis Coyote brush Asteraceae

Bromus carinatus var. carinatus California brome Poaceae

Bromus diandrus Ripgut brome Poaceae

Bromus hordeaceus Soft chess Poaceae

Calocedrus decurrens Incense cedar Cupressaceae

Calystegia occidentalis ssp. occidentalis Western morning glory Convolvulaceae

Cardamine oligosperma Bitter cress Brassicaceae

Carduus pycnocephalusa Italian thistle Asteraceae

Carex densa Dense sedge Cyperaceae

Carex fracta Fragile sheath sedge Cyperaceae

Castanea sp. Chestnut Fagaceae

Ceanothus integerrimus Deer brush Rhamnaceae

Cerastium glomeratuma Mouse-ear chickweed Caryophyllaceae

Chamaebatia foliolosa Mountain misery Rosaceae

Chlorogalum pomeridianum Common soap plant Liliaceae

Cirsium vulgarea Bull thistle Asteraceae

Claytonia perfoliata Miner’s lettuce Portulacaceae

Cornus nuttallii Mountain dogwood (tree) Cornaceae

Cornus sericea ssp. sericea American dogwood (shrub) Cornaceae

Corylus cornuta var. californica Hazelnut Betulaceae

Crataegus monogynaa Hawthorn Rosaceae


Cynoglossum grande Hound’s tongue Boraginaceae

Cynosurus echinatusa Hedgehog dogtail Poaceae

Cyperus eragrostis Nutsedge Cyperaceae

Cytisus scopariusa Scotch broom Fabaceae

Dactylis glomerataa Orchard grass Poaceae

Daucus carotaa Wild carrot Apiaceae

Dicentra formosa Bleeding hearts Papaveraceae

Dichelostemma capitatum Blue dicks Liliaceae

Digitalis purpureaa Foxglove Scrophulariaceae

Epilobium ciliatum Willow herb Onagraceae

Equisetum arvense Scouring rush Equisetaceae

Eriophyllum lanatum Common wooly sunflower Asteraceae

Fritillaria micrantha Brown bells Liliaceae

Galium aparine Common bedstraw Rubiaceae

Geranium dissectuma Cut leaved geranium Geraniaceae

Gnaphalium canescens Everlasting cudweed Asteraceae

Grindelia hirsutula Hairy gumweed Asteraceae

Helenium puberulum Sneezeweed Asteraceae

Hedera helixa English ivy Araliaceae

Holcus lanatusa Velvet grass Poaceae

Hordeum marinum ssp. gussoneanuma Mediterranean barley Poaceae

Hordeum murinum ssp. leporinuma Foxtail barley Poaceae

Hypericum perforatuma St. John’s wort Hypericaceae

Hypochaeris radicataa Rough cats ear Asteraceae

Ilex sp. a Holly Aquifoliaceae

Iris sp. Iris Iridaceae

Juglans californica var. hindsii California black walnut Juglandaceae

Juglans regiaa English walnut Juglandaceae

Juncus effusus var. exiguus Common bog rush Juncaceae

Juncus xiphioides Iris-leaf rush Juncaceae

Lactuca serriolaa Prickly lettuce Asteraceae

Lathyrus latifoliusa Perennial sweet pea Fabaceae

Leontodon taraxacoidesa Lesser hawkbit Asteraceae

Leymus triticoides Creeping wild rye Poaceae

Lilium sp. Lily Liliaceae

Lilium pardalinum Leopard lily Liliaceae

Lolium multifloruma Italian ryegrass Poaceae


Lonicera hispidula Pink honeysuckle Caprifoliaceae

Lotus sp. Lotus Fabaceae

Lunaria annuaa Honesty Brassicaceae

Lupinus sp. Bush lupine Fabaceae

Luzula comosa Wood rush Juncaceae

Madia sp. Madia Asteraceae

Malus sp.a Apple Rosaceae

Mimulus cardinalis Scarlet monkeyflower Scrophulariaceae

Mimulus guttatus Common yellow monkeyflower Scrophulariaceae

Penstemon laetus var. leptosepalus Mountain blue penstemon Scrophulariaceae

Phacelia sp. Phacelia Boraginaceae

Pinus lambertiana Sugar pine Pinaceae

Pinus ponderosa Ponderosa pine Pinaceae

Plantago lanceolataa English plantain Plantaginaceae

Poa annuaa Annual bluegrass Poaceae

Poa bulbosaa Bulbous bluegrass Poaceae

Potentilla glandulosa Common cinquefoil Rosaceae

Prunella vulgaris var. vulgarisa Self-heal Lamiaceae

Prunus sp.a Prunus Rosaceae

Pseudotsuga menziesii Douglas-fir Pinaceae

Pteridium aquilinum var. pubescens Bracken fern Dennstaedtiaceae

Quercus kelloggii California black oak Fagaceae

Ranunculus californicus California buttercup Ranunculaceae

Rosa californica California wild rose Rosaceae

Rubus discolora Himalayan berry Rosaceae

Rubus laciniatusa Cut-leaved blackberry Rosaceae

Rumex acetosellaa Common sheep sorrel Polygonaceae

Rumex crispusa Curly dock Polygonaceae

Salix sp. Willow Salicaceae

Sanicula bipinnata Poison sanicle Apiaceae

Sanicula bipinnatifida Purple sanicle Apiaceae

Sanicula crassicaulis Pacific snakeroot Apiaceae

Sherardia arvensisa Field madder Rubiaceae

Sidalcea glaucescens Waxy checkermallow Malvaceae

Sisymbrium sp. Hedge mustard Brassicaceae

Sonchus oleraceusa Common sow thistle Asteraceae

Stellaria mediaa Common chickweed Caryophyllaceae


Symphoricarpos albus var. laevigatus Snowberry Caprifoliaceae

Symphoricarpos mollis Creeping snowberry Caprifoliaceae

Taraxacum officinalea Dandelion Asteraceae

Thlaspi arvensea Field pennycress Brassicaceae

Torilis arvensisa Hedge parsley Apiaceae

Toxicodendron diversilobum Poison oak Anacardiaceae

Tragopogon porrifoliusa Salsify Asteraceae

Trifolium dubiuma Shamrock clover Fabaceae

Trifolium glomeratuma Clustered clover Fabaceae

Trifolium hirtuma Rose clover Fabaceae

Trifolium repensa White lawn clover Fabaceae

Typha latifolia Broad-leaved cattail Typhaceae

Verbascum blattariaa Moth mullein Scrophulariaceae

Verbascum thapsusa Woolly mullein Scrophulariaceae

Vicia sp. Vetch Fabaceae

Vinca majora Greater periwinkle Apocynaceae

Viola spp. Violet Violaceae

Vulpia myurosa Rattail fescue Poaceae

Woodwardia fimbriata Giant chain fern Blechnaceae a non-native species.

Figure 1Regional Vicinity

0655

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CA

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NE

VA

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80

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160

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20

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Eldorado National Forest

Lake Tahoe

Tahoe National Forest

Miles

840

Sacramento

Roseville

Folsom

Lodi

Davis

Yuba City

Lincoln

Loomis

ColomaPlacerville

Pollock Pines

Georgetown

Foresthill

South Lake Tahoe

Meeks Bay

Tahoe City

Kit CarsonDiamond Springs

Omo Ranch

Plymouth

Sutter CreekClarksburg

Rio Vista

Rio Linda

Wheatland

Grass Valley

Colfax

Blue CanyonSoda Springs

Truckee

Project Location

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Gold Flat Rd Pinewood Rd

Banner Mt Trail

Big Blue R

d

BannerReservoir

Gracie Rd

Hwy 4

9/20

Flume 23

Flume 19 Flume 18

Flume 17Gracie Road Crossing

Flume 16

Flume 15

Flume 14

Flume 13

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Figure 2DS Canal Flume Replacement Project Vicinity

Apple Orchard Rd

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0 2,000

Base Map: USGS 7.5' series Chicago Park and Grass Valley, California quadrangles

Township 16N, Ranges 8E and 9E

Preliminary Project Area Boundary

Legend

Appendix A Photographs

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Appendix APhotographs

A-1

Photo 1. Flume 14.

Photo 2. Flume 16.

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Photo 3. Flume 19.

Photo 4. Flume 23.

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Photo 5. Gracie Road crossing.

Photo 6. Typical canal section.

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A-4

Photo 7. Fritillaria micrantha.

Appendix E Special-Status Plants€¦ · quads surrounding it: French Corral, Nevada City, North...

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