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<br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration 123 <br />species include agriculture, urbanization, overgrazing, vehicles, and non-native <br />plants (CNPS 2019). Potentially suitable habitat for Sacramento Orcutt grass is <br />present within the Study Area. However, this species has low potential to occur <br />within the Study Area because the Study Area is located on the edge of its <br />known range and vernal pools will be avoided so potential impacts would be less <br />than significant. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-12, MM BIO-18, <br />and MM BIO-19 would further avoid, minimize and/or reduce the potential for <br />impacts to Sacramento Orcutt grass. <br />Hairless popcornflower (Plagiobothrys glaber) <br />Hairless popcornflower has a CRPR of 1A but is not listed under FESA or CESA. <br />This species is an annual herb in the forget-me-not family, and it blooms from <br />March to May (CNPS 2019). It is endemic to California, and its current range <br />includes the Central Coast and southern San Francisco Bay Area (CNPS 2019, <br />Jepson Flora Project 2019); however, the last confirmed sighting of this species <br />was in 1954 and it is presumed extirpated from all counties in which it was <br />previously found (Alameda, Marin, San Benito, and Santa Clara). It typically <br />grows in meadows and seeps and marshes and swamps (CNPS 2019). The <br />microhabitat for hairless popcorn flower includes coastal salt marshes and <br />alkaline meadows (CDFW 2019). Threats to this species have not been <br />identified (CNPS 2019). Potentially suitable habitat for bearded popcornflower is <br />present within the Study Area. However, this species has low potential to occur <br />within the Study Area because the Study Area is located on the edge of its <br />known range and wetlands will be avoided so potential impacts would be less <br />than significant. <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-18, and MM BIO-19 <br />would further avoid, minimize and/or reduce the potential for impacts to hairless <br />popcornflower. <br />Bearded popcornflower (Plagiobothrys hystriculus) <br />Bearded popcornflower has a CRPR of 1B.1, but it is not listed under FESA or <br />CESA. This species is an annual herb in the borage family, and it blooms from <br />April through May (CNPS 2019). It is endemic to California, and its current range <br />includes the southwestern Sacramento Valley and the southeastern Inner North <br />Coast Range (CNPS 2019; Jepson Flora Project 2019). It typically grows in <br />vernal pools and mesic sites within valley and foothill grassland (CNPS 2019). <br />Bearded popcornflower is threatened by disking, development, and non-native <br />plants (CNPS 2019). Potentially suitable habitat for bearded popcornflower is <br />present within the Study Area. However, this species has low potential to occur <br />within the Study Area because the Study Area is located on the edge of its <br />known range and vernal pools will be avoided so potential impacts would be less <br />than significant.