Laserfiche WebLink
<br />Soil Investigations for Data Collection in the Delta <br />Initial Study/Proposed Mitigated Negative Declaration 127 <br />Implementation of Mitigation Measures MM BIO-1b, MM BIO-18, and MM BIO-19 <br />would reduce potential impacts to Suisun marsh aster to: Less than Significant <br />with Mitigation Incorporated. <br />Wright's trichocoronis (Trichocoronis wrightii var. wrightii) <br />Wright’s trichocoronis has a CRPR of 2B.1, but it is not listed under FESA or <br />CESA. This species is an annual herb in the sunflower family, and it blooms from <br />May through September (CNPS 2019). The current range of this species in <br />California includes the Central Valley and San Jacinto Valley (CNPS 2019; <br />Jepson Flora Project 2019). It is presumed extirpated from Colusa, San Joaquin, <br />and Sutter counties. It typically grows in alkaline soils within meadows and <br />seeps, marshes and swamps, riparian forest, and vernal pools (CNPS 2019). <br />The microhabitat for Wright’s trichocoronis includes mud flats of vernal lakes, <br />drying river beds, and alkali meadows (CDFW 2019). Wright’s trichocoronis is <br />threatened by agriculture and urbanization (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-12, MM BIO-18, <br />and MM BIO-19 would reduce potential impacts to Wright’s trichocoronis to: Less <br />than Significant with Mitigation Incorporated. <br />Saline clover (Trifolium hydrophilum) <br />Saline clover has a CRPR of 1B.2, but it is not listed under FESA or CESA. This <br />species is an annual herb in the legume family, and it blooms from April through <br />June (CNPS 2019). It is endemic to California, and its current range includes the <br />Sacramento Valley, northwestern San Joaquin Valley, Central Coast, San <br />Francisco Bay Area, and South Coast Ranges (CNPS 2019; Jepson Flora <br />Project 2019). It typically grows in marshes and swamps, vernal pools, and <br />mesic, alkaline sites within valley and foothill grassland (CNPS 2019). Saline <br />clover is threatened by development, trampling, road construction, and vehicles <br />(CNPS 2019). This species has moderate potential to occur within the Study <br />Area based 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 saline clover to: Less than <br />Significant with Mitigation Incorporated. <br />Caper-fruited tropidocarpum (Tropidocarpum capparideum) <br />Caper-fruited tropidocarpum has a CRPR of 1B.1, but it is not listed under FESA <br />or CESA. This species is an annual herb in the mustard family, and it blooms <br />from March through April (CNPS 2019). It is endemic to California, and its current <br />range includes the northwestern San Joaquin Valley and Outer South Coast <br />Ranges (CNPS 2019; Jepson Flora Project 2019). It is presumed extirpated from <br />Alameda, Contra Costa, Glenn, Santa Clara, and San Joaquin counties. It