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<br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration 110 <br />Jepson’s coyote-thistle has a CRPR of 1B.2 but is not listed under FESA or <br />CESA. This species is a perennial herb in the carrot family, and it blooms from <br />April to August (CNPS 2019). It is endemic to California, and its current range <br />includes the southern Inner North Coast Ranges, the Sacramento-San Joaquin <br />Delta region of the Central Valley, and the San Francisco Bay Area (CNPS 2019, <br />Jepson Flora Project 2019). It typically grows in valley and foothill grassland and <br />vernal pools (CNPS 2019). The microhabitat for Jepson’s coyote-thistle includes <br />clay soils (CDFW 2019). Threats to this species include development (CNPS <br />2019). This species has moderate potential to occur within the Study Area based <br />on the presence of potentially suitable habitat. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-12, MM BIO-18, <br />and MM BIO-19 would reduce potential impacts to Jepson’s coyote thistle to: <br />Less than Significant with Mitigation Incorporated. <br />Delta button-celery (Eryngium racemosum) <br />Delta button-celery has a CRPR of 1B.1 and is listed as Endangered under <br />CESA but is not listed under FESA. This species is an annual or sometimes <br />perennial herb in the carrot family, and it blooms from June to October (CNPS <br />2019). It is endemic to California, and its current range includes the northern <br />Sierra Nevada Foothills and northern San Joaquin Valley (CNPS 2019, Jepson <br />Flora Project 2019). It is presumed extirpated from San Joaquin County. It <br />typically grows in riparian scrub in vernally mesic clay depressions (CNPS 2019). <br />The microhabitat for Delta button-celery includes seasonally inundated <br />floodplains on clay (CDFW 2019). Threats to this species include agriculture, <br />non-native plants, and flood control activities (CNPS 2019). This species has <br />moderate potential to occur within the Study Area based on the presence of <br />potentially suitable habitat. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-18, and MM BIO-19 <br />would reduce potential impacts to Delta button-celery to: Less than Significant <br />with Mitigation Incorporated. <br />Spiny-sepaled button-celery (Eryngium spinosepalum) <br />Spiny-sepaled button-celery has a CRPR of 1B.2 but is not listed under FESA or <br />CESA. This species is an annual or perennial herb in the carrot family, and it <br />blooms from April to June (CNPS 2019). It is endemic to California, and its <br />current range includes the southern Sierra Nevada Foothills and the San Joaquin <br />Valley (CNPS 2019, Jepson Flora Project 2019). It typically grows in valley and <br />foothill grassland and vernal pools (CNPS 2019). The microhabitat for spiny- <br />sepaled button-celery includes clay soil of granitic origin and vernal pools within <br />grassland (CDFW 2019). Threats to this species include development, grazing, <br />road maintenance, hydrological alterations, and agriculture (CNPS 2019). This <br />species has moderate potential to occur within the Study Area based on the <br />presence of potentially suitable habitat.