There is an observation form about this polygon but came back for Rapid Assessment because it’s a unique type. Only includes blue-green parts on photo and surrounding Silybum marianum. Grey-brown area surrounding green is nearly pure Silybum marianum, not included in assessment. Center of polygon is nearly pure Leymus triticoides. In alluvial, flattish area. Silybum patchy. Polygon extends off of map to S. VERY dense cover. Largest Leymus triticoides patch seen so far. Coyote skull in polygon.