Laserfiche WebLink
Table 4.5-1 <br /> Special-Status Plants Known or with Potential to Occur in the Proposed Project Area <br /> Species StatusHabitat and Blooming Period Potential for Occurrence <br /> USFWS DFG CNPS <br /> Sanford's arrowhead 1B Marshes and swamps,assorted Possible.CNDDB lists a historic <br /> Sagittaria sanfordii shallow freshwater,at 0-619 occurrence near Stockton.From <br /> meters in elevation. herbarium specimens,species is <br /> Blooms May—October known to occur more widely in the <br /> area along irrigation ditches. <br /> Freshwater marsh habitat in the <br /> project area provides suitable <br /> habitat. <br /> Wright's trichocoronis 2 Marshes and swamps,meadows Unlikely.CNDDB lists one <br /> Trichocoronis wrightii and seeps,riparian forest,vernal historic occurrence from the San <br /> var.wrightii pools,often in alkaline areas, Joaquin River near Lathrop. <br /> occurs at 3-500 meters in Freshwater marsh and the San <br /> elevation. Joaquin River bank provide <br /> Blooms May—September marginal habitat for this species in <br /> the project area. <br /> Greene's tuctoria E R 1B Vernal pools in annual grassland, Unlikely.CNDDB lists one <br /> Tuctoria greenei dry bottoms of vernal pools,occurs historic occurrence from <br /> at 30-1,065 meters in elevation. Farmington.No vernal pool habitat <br /> Blooms May—September is known to occur in the project <br /> area. <br /> Notes: <br /> CNPS=California Natural Diversity Database; DFG=California Department of Fish and Game; USFWS=U.S. Fish and Wildlife Service <br /> Legal Status Definitions <br /> Federal Listing Categories(USFWS) CNPS Categories <br /> E Endangered 1A Plants presumed to be extinct in California <br /> State Listing Categories(DFG) 1 B Plants that are rare,threatened,or endangered in California and <br /> E Endangered elsewhere <br /> R Rare 2 Plants that are rare,threatened,or endangered in California but more <br /> common elsewhere <br /> Sources:CNDDB 2006,CNPS 2006, Hickman 1993 <br /> Two of the species included in Table 4.5-1, alkali milk vetch(Astragalus tener var. tener) and Greene's tuctoria <br /> (Tuctoria greenei), are restricted to vernal pools,which require soils with a relatively shallow impermeable layer. <br /> Based on soil survey data,vernal pool habitat is not known to underlie annual grassland areas in the project area. <br /> However,because annual grassland areas that would be traversed by proposed pipeline routes for the wastewater <br /> collection system, effluent outfall, and recycled-water distribution system were not accessible during the <br /> reconnaissance survey, and a ponded area was observed in annual grassland adjacent to the proposed wastewater <br /> collection system approximately 900 feet north of Yosemite Avenue,the presence of vernal pools in the project <br /> area cannot be ruled out. <br /> Special-Status Plants <br /> Suisun Marsh aster is a rhizomatous,perennial herb in the daisy family with violet flowers that are arranged in <br /> heads. Suisun Marsh aster grows in many different habitats along sloughs and rivers of the Sacramento—San <br /> Joaquin Delta(Delta). It has been found on wooden posts and in riprap,although it is most common in freshwater <br /> and brackish marshes. It could occur in marshes or along the San Joaquin River in the project area. <br /> Manteca WQCF and Collection System Master Plans EIR EDAW <br /> City of Manteca 4.5-17 Terrestrial Biological Resources <br />