TY - RPRT TI - Physiological variation among native and exotic winter annuals associated with microphytic soil crusts in the Mojave Desert AU - Lesley DeFalco AU - James K. Detling AU - C. Richard Tracy AU - Steven D. Warren PY - 2001 DO - 10.1023/a:1010323001006 UR - https://pubs.usgs.gov/publication/1008383 ID - 1008383 ER -