Master spatial file for native California vascular plants used by Baldwin et al. (2017 Amer. J. Bot.)

Georeferenced locality information of all Californian native vascular plant species from herbarium specimens obtained from five different online sources in August 2015: (1) the Consortium of California Herbaria (CCH, http://ucjeps.berkeley.edu/consortium/), (2) the Consortium of Pacific Northwest Herbaria (http://www.pnwherbaria.org), (3) Australia’s Virtual Herbarium (avh.chah.org.au), (4) Canadensys (http://www.canadensys.net), and (5) the Global Biodiversity Information Facility (http://www.gbif.org). Data were carefully cleaned as described in Baldwin et al. 2017, and this final data set contains 1,383,762 occurrences.