TY  - RPRT
TI  - Characters in Arctostaphylos taxonomy
AU  - Jon E. Keeley
AU  - V. Thomas Parker
AU  - Michael C. Vasey
PY  - 2017
DO  - 10.3120/0024-9637-64.4.138
UR  - https://pubs.usgs.gov/publication/70195025
ID  - 70195025
ER  -