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Biological Resources Tables Appendix G Biological Resources Tables SPECIAL-STATUS PLANT SPECIES WITH POTENTIAL TO OCCUR IN THE VICINITY OF THE UNION CITY STATION DISTRICT MIXED-USE DEVELOPMENT PROJECT STUDY AREA Legal Statusa Likelihood of Common Name Occurrenceb in the Study Scientific Name Fed/Cal/CNPS Geographic Distribution Habitat Requirements Blooming Period Area (project element) San Mateo thorn-mint E/E/1B.1 Central Coast, San Francisco Annual grassland and Apr-Jun None; no Acanthomintha duttonii Bay area: two occurrences in open areas in chaparral suitable habitat San Mateo County and coastal scrub, on serpentinite vertisol clay soil, below 900' Kings Mountain manzanita –/–/1B.2 Western San Francisco Bay Broadleaved upland Jan-Apr None; no Arctostaphylos region, northern Santa Cruz forest, chaparral, North suitable habitat regismontana Mountains:Santa Cruz and Coast coniferous forest, San Mateo Counties on granitic or sandstone Alkali milk-vetch –/–/1B.2 Southern Sacramento Valley, Grassy flats and vernal Mar-Jun None; no Astragalus tener var. northern San Joaquin Valley, pool margins, on alkali suitable habitat tener east San Francisco Bay Area soils, below 200' Heartscale --/–/1B.2 Western Central Valley and Alkali grassland, alkali May-Oct None; no Atriplex cordulata valleys of adjacent foothills meadow, alkali scrub, suitable habitat below 660' Brittlescale –/–/1B.2 Western and eastern Central Alkali grassland, alkali May-Oct None; no Atriplex depressa Valley and adjacent foothills meadow, alkali scrub, suitable habitat on west side of Central Valley chenopod scrub, playas, valley and foothill grasslands on alkaline or clay soils, below 660' San Joaquin saltbush –/–/1B.2 West edge of Central Valley Alkali meadow, alkali Unknown None; no Atriplex joaquiniana from Glenn County to Tulare grassland, saltbush suitable habitat County scrub; blooms April- September Big scale balsamroot –/–/1B.2 Scattered occurrences in the Rocky annual grassland Mar-Jun None; no Balsamorhiza macrolepis Coast Ranges and Sierra and fields, foothill suitable habitat Nevada foothills woodland hillsides, sometimes serpentinite, below 4,600' Appendix G. Continued Page 2 of 6 Legal Statusa Likelihood of Common Name Occurrenceb in the Study Scientific Name Fed/Cal/CNPS Geographic Distribution Habitat Requirements Blooming Period Area (project element) Chaparral harebell –/–/1B.2 San Francisco Bay region, Rocky areas in chaparral, May-Jun None; no Campanula exigua northern inner south Coast usually on serpentinite suitable habitat Ranges: Alameda, Contra Costa, San Benito, Santa Clara, and Stanislaus Counties Congdon’s tarplant –/–/1B.2 East San Francisco Bay Area, Annual grassland, on Jun-Nov None; no Centromadia parryi ssp. Salinas Valley, Los Osos lower slopes, flats, and suitable habitat congdonii (formerly Valley swales, sometimes on Hemizonia) alkaline or saline soils, below 700' Robust spineflower E/–/1B.1 Coastal central California, Coastal bluff scrub, May-Sep None; no Chorizanthe robusta var. from San Mateo to Monterey coastal dunes openings in suitable habitat robusta County cismontane woodland, on sandy soil Fountain thistle E/E/1B.1 Endemic to San Mateo Seeps in chaparral and Jun-Oct None; no Cirsium fontinale var. County grassland, on serpentinite suitable habitat fontinale Lost thistle –/–/1A Known only from 2 historic Habitat is unknown, not in June-July None; no Cirsium praeteriens collections in Santa Clara Jepson Manual, elevation suitable habitat County near Palo Alto (last in 0-100 meters 1901) San Francisco collinsia –/–/1B.2 Coastal California from San Closed-cone coniferous Mar-May None; no Collinsia multicolor Francisco to Monterey County forest, coastal scrub suitable habitat Point Reyes bird’s-beak –/–/1B.2 Coastal northern California, Coastal salt marsh Jun-Oct None; no Cordylanthus maritimus from Humboldt to Santa Clara suitable habitat ssp. Palustris County; Oregon Palmate-bracted bird’s-beak E/E/1B.1 Livermore Valley and Alkaline grassland, alkali May-Oct None; no Cordylanthus palmatus scattered locations in the meadow, chenopod suitable habitat Central Valley from Colusa scrub County to Fresno County Appendix G. Continued Page 3 of 6 Legal Statusa Likelihood of Common Name Occurrenceb in the Study Scientific Name Fed/Cal/CNPS Geographic Distribution Habitat Requirements Blooming Period Area (project element) Western leatherwood –/–/1B.2 San Francisco Bay region, Moist areas in Jan-Apr None; no Dirca occidentalis Alameda, Contra Costa, broadleaved upland suitable habitat Marin, Santa Clara, San forest, closed-cone Mateo, and Sonoma Counties coniferous forest, chaparral, cismontane woodland, North Coast coniferous forest, riparian forest, riparian woodland, 165-1,300' Hoover’s button-celery --/–/1B.1 San Benito, Santa Clara, and Vernal pools Jul None; no Eryngium aristulatum var. San Luis Obispo Counties suitable habitat hooveri Fragrant fritillary –/–/1B.2 Coast Ranges from Marin Adobe soils of interior Feb-Apr Fritillaria liliacea County to San Benito County foothills, coastal prairie, coastal scrub, annual grassland, often on serpentinite, below 1,350' Diablo rock rose (Diablo --/–/1B.2 San Francisco Bay area: At chaparral/oak Apr-Jun None; no helianthella) Alameda, Contra Costa, woodland ecotone, often suitable habitat Helianthella castanea Marin*, San Francisco*, and in partial shade, on rocky San Mateo Counties soils, (60-1300 m) 80- 3,800' Marin western flax T/T/1B.1 Marin, San Francisco, and Chaparral, serpentinite Apr-Jul None; no Hesperolinon congestum San Mateo Counties grassland suitable habitat Santa Cruz tarplant T/E/1B.1 Coastal slope of the Santa Coastal terrace Jun-Oct None; no Holocarpha macradenia Cruz Mountains, Monterey grasslands on light sandy suitable habitat and Santa Cruz Counties to sandy clay soils, below 300 feet Appendix G. Continued Page 4 of 6 Legal Statusa Likelihood of Common Name Occurrenceb in the Study Scientific Name Fed/Cal/CNPS Geographic Distribution Habitat Requirements Blooming Period Area (project element) Contra Costa goldfields E/–/1B.1 Scattered occurrences in Alkaline or saline vernal Mar-Jun None; no Lasthenia conjugens Coast Range valleys and pools and swales, below suitable habitat southwest edge of 700' Sacramento Valley, Alameda, Contra Costa, Mendocino, Monterey, Napa, Santa Barbara*, Santa Clara*, and Solano Counites. Arcuate bush mallow –/–/1B.2 Santa Clara, Santa Cruz, and Chaparral, between 15- Apr-Sep None; no Malacothamnus arcuatus San Mateo Counties 355 m suitable habitat Davidson’s bush mallow –/–/1B.2 Los Angeles, Monterey, and Coastal scrub, chaparral, Jun-Sep None; no Malacothamnus San Luis Obispo Counties and riparian woodland in suitable habitat davidsonii sandy washes, 900-2,800' Hall’s bush mallow –/–/1B.2 Alameda, Contra Costa, Chaparral and coastal May-Sep None; no Malacothamnus hallii Merced, Santa Clara, and scrub between 30-2,500' suitable habitat Stanislaus Counties Robust monardella –/–/1B.2 North Coast Ranges and Oak woodland and grassy June-July None; no Monardella villosa ssp. Eastern San Francisco Bay openings in chaparral and suitable habitat globosa Area: Alameda, Contra Costa, coastal scrub Humboldt, Lake, Marin, Mendocino, Napa, San Mateo, and Sonoma Counties Prostrate navarettia –/–/1B.1 Western San Joaquin Valley, Vernal pools and mesic Apr-Jul None; no Navarretia prostrata interior South Coast Ranges, areas in coastal scrub suitable habitat central South Coast, and alkali grasslands Peninsular Ranges: Los Angeles, Merced, Monterey, Orange, Riverside, San Bernardino, and San Diego Counties Appendix G. Continued Page 5 of 6 Legal Statusa Likelihood of Common Name Occurrenceb in the Study Scientific Name Fed/Cal/CNPS Geographic Distribution Habitat Requirements Blooming Period Area (project element) Hairless popcorn-flower –/–/1A Coastal valleys from Marin Alkaline meadows, Apr-May None; no Plagiobothrys glaber County to San Benito coastal salt marsh suitable habitat Counties Slender-leaved pondweed –/–/2.2 Scattered locations in Freshwater marsh, May-Jul None; no Potamogeton filiformis California: Lassen, Merced, shallow emergent suitable habitat Mono, Placer, and Sierra wetlands and freshwater Counties; Arizona, Nevada, lakes, drainage channels Oregon, Washington Most beautiful jewel-flower –/–/1B.2 Eastern San Francisco Bay Chaparral, annual Apr-Jun None; no Streptanthus albidus ssp. area, Central south coastal grassland, on ridges and suitable habitat peramoenus outer ranges. Alameda, slopes on serpentinite Contra Costa, Monterey, and outcrops, 450-3,200' Santa Clara Counties California seablite E/–/1B.1 Morro Bay, San Luis Obispo Margins of tidal salt Jul-Oct None; no Suaeda californica County, historically found in marsh suitable habitat the south San Francisco Bay Saline clover –/–/1B.2 Sacramento Valley, central Salt marsh, mesic Apr-Jun None; no Trifolium depauperatum western California alkaline areas in suitable habitat var. hydrophilum grasslands, vernal pools Caper-fruited tropidocarpum –/–/1B.1 Historically known from the Grasslands in alkaline Mar-Apr None; no Tropidocarpum northwest San Joaquin Valley hills below 1,500' suitable habitat capparideum and adjacent Coast Range foothills a Status explanations: Federal E = listed as endangered under the federal Endangered Species Act. T = listed as threatened under the federal Endangered Species Act. – = no listing. State Appendix G. Continued Page 6 of 6 E = listed as endangered under the California Endangered Species Act. T = listed as threatened under the California Endangered Species Act.
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