19 October 2006.
California, United States
Locality: Within 500 meters of the Petco Park baseball stadium, San Diego.
Coordinates: 32.7078, -117.1572
(Map it)
Elevation: 7m.
Georeference protocol: Lat/Lon determined via Map location
Environment description: An urban weed growing on the edges of parking areas and by trolly tracks, sometimes erect and sometimes prostrate due to traffic. Estimated population size of 150. Some plants had recently germinated and were too young to have seeds.
Number of plants sampled: 47
Collector(s):