Appendix 12. Simulated abundance of hydroriparian (marsh and grass) and Tamarisk (salt cedar)-dominated communities in upper Granite reach. The natural system reference point prior to impoundment (1963) has little vegetation below seasonal high flow stage. The1982 point shows considerable development of shoreline marsh and salt-cedar communities from 1963 until just prior to the1983-1984 floods, and the 1990 point shows virtually complete recovery of these communities within 15 years after those floods.