TY  - RPRT
TI  - Clonal expansion and seedling recruitment of Oregon grape (Berberis nervosa) in Douglas-fir (Pseudotsuga menziesii) forests: Comparisons with salal (Gaultheria shallon)
AU  - David W. Huffman
AU  - John C. Tappeiner
PY  - 1997
DO  - 10.1139/x97-150
UR  - https://pubs.usgs.gov/publication/1015850
ID  - 1015850
ER  -