TY  - RPRT
TI  - Invasion in a diversity hotspot: Exotic cover and native richness in the Californian serpentine flora
AU  - S. Harrison
AU  - J.B. Grace
AU  - K.F. Davies
AU  - H.D. Safford
AU  - J.H. Viers
PY  - 2006
DO  - 10.1890/05-0778
UR  - https://pubs.usgs.gov/publication/70030667
ID  - 70030667
ER  -