This map shows where the plant Cistanthe arenaria has been found. When a plant has been collected at a specific place there is a blue dot on the map. When many plants have been collected the color of the dot becomes red. Lightly crosshatched areas indicate regions with no observations. If you specify your location within this area this species will not be selected.
The map your browser is displaying is composed of two parts. Each part is licensed. The background map is a Stamen terrain map built by visiting maps.stamen.com. It has the following attribution: Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under ODbL.
Displayed over the terrain map is a partially transparent overlay that shows where the species has been found. This overlay uses data from many sources listed at this Attribution and Copyright link. This overlay is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike license.