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5.2 BIOLOGICAL RESOURCES <br /> TABLE 5.2-3 <br /> Plant Species Observed During Field Surveys <br /> LEC Site/ <br /> Laydown Natural Gas <br /> Scientific Name Common Name Areas Pipeline <br /> Poaceae <br /> Avena barbata Slender wild oat X <br /> Avena fatua Wild oat X <br /> Bromus diandrus Ripgut brome X X <br /> Bromus hordeaceus Soft chess X X <br /> Bromus madritensis ssp. rubens Red brome X <br /> Cynodon dactylon Bermuda grass X <br /> Distichlis spicata Saltgrass X <br /> Hordeum marinum ssp. gussoneanum Mediterranean barley X <br /> Hordeum murinum ssp. leporinum Foxtail barley X <br /> Lolium multiflorum Italian ryegrass X X <br /> Phalaris aquatica Harding grass X <br /> Poa annus Annual bluegrass X <br /> Polypogon monspeliensis Annual beard grass X X <br /> Sorghum halepense Johnsongrass X <br /> Vulpia myuros Rat-tail fescue X X <br /> Polygonaceae <br /> Polygonum arenastrum Common knotweed X <br /> Polygonum aviculare Knotweed X <br /> Polygonum lapathifolium Willow weed X <br /> Rumex crispus Curly dock X X <br /> Rumex pulcher Fiddle dock X <br /> Rubiaceae <br /> Galium aparine Bed straw X <br /> Salicaceae <br /> Populus fremontii ssp. fremontii Fremont cottonwood X <br /> Salix lasiolepis Arroyo willow X <br /> Typhaceae <br /> Typha sp. Cattail X <br /> 5.2.1.4.4 Wetland Survey <br /> The determination of the presence and extent of wetlands and other waters within the LEC <br /> project site and natural gas pipeline corridor was based on the technical criteria and <br /> procedures described in the U.S. Army Corps of Engineers' (USACE) 1987 Wetland <br /> Delineation Manual (Environmental Laboratory, 1987) and the Arid West Regional <br /> 5.2-20 SAC/371322/082330001(LEC_5.2_BIOLOGICAL_RESOURCES.DOC) <br />