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<br /> 27 <br />TABLE 2A: SPECIAL STATUS SPECIES THAT COULD OCCUR IN THE PROJECT VICINITY. <br />PLANTS (adapted from CDFW 2023 and CNPS 2023) <br />Species Listed as Threatened or Endangered under the State and/or Federal Endangered Species Acts <br />Common and scientific names Status <br />General habitat <br />description *Occurrence in the study area <br />Mt. Diablo fairy lantern <br />Calochortus pulchellus <br />CRPR 1B Habitat: Chaparral, <br />cismontane woodland, <br />riparian woodland, and <br />valley and foothill <br />grassland. <br />Elevation: 30-840 meters. <br />Blooms: Bulb; April–June. <br />Absent. While potentially suitable <br />habitat is present on the site, the <br />nearest documented occurrences <br />of this species are more than nine <br />miles north of the site and it was <br />not detected during rare plant <br />surveys on the site. <br />Congdon’s tarplant <br />Centromadia parryi ssp. <br />congdonii <br />CRPR 1B Habitat: Occurs on valley <br />and foothill grasslands on <br />alkaline soils. <br />Elevation: 0-230 meters. <br />Blooms: Annual herb; <br />May-November. <br />Present. This species is confirmed <br />to be present on the site both <br />within areas that will be impacted <br />by the proposed project and areas <br />that are proposed for conservation. <br />Santa Clara red ribbons <br />Clarkia concinna ssp. <br />automixa <br />CRPR 4 Habitat: Chaparral and <br />cismontane woodland. <br />Elevation: 90-1500 <br />meters. Blooms: Annual <br />herb; April–July. <br />Absent. While suitable habitat for <br />this species is present on the site, <br />the nearest documented <br />occurrence of this species is from <br />1938 approximately seven miles <br />south of the site and it was not <br />detected during rare plant surveys. <br />Mt. Diablo buckwheat <br />Eriogonum truncatum <br />CRPR 1A Habitat: Sandy soils of <br />chaparral, coastal scrub, <br />valley, and foothill <br />grassland. <br />Elevation: 3-350 meters. <br />Blooms: Annual herb; <br />April–September. <br />Absent. While potentially suitable <br />habitat is present, this species is <br />only known to occur on Mt. Diablo <br />and the nearest documented <br />occurrences of this species are <br />more than seven miles north of the <br />site. Species was not detected on <br />the site during rare plant surveys. <br />Fragrant fritillary <br />Fritillaria liliacea <br />CRPR 1B Habitat: Cismontane <br />woodland, coastal prairie, <br />coastal scrub, and valley <br />and foothill grasslands. <br />Often occurs on <br />serpentinite. <br />Elevation: 3-410 meters. <br />Blooms: Bulb; February– <br />April. <br />Absent. Serpentine soils are <br />absent from the site; the nearest <br />documented occurrence of this <br />species is more than eight miles <br />from the site; and this species was <br />not detected during rare plant <br />surveys. <br />Northern California black <br />walnut <br />Juglans hindsii <br />CRPR 1B Habitat: Occurs in <br />riparian woodland and <br />riparian forest. <br />Elevation: 0-440 meters. <br />Blooms: April–May. <br />Absent. Only one confirmed native <br />occurrence is known. Native status <br />is unknown for other locations. This <br />species was formerly cultivated as <br />a rootstock for walnut orchards <br />and readily hybridizes with <br />agricultural walnuts. It is widely <br />naturalized in cismontane and <br />riparian habitats.