Description: English: Botanical specimen in the San Luis Obispo Botanical Garden - in El Chorro Regional Park, San Luis Obispo, California, USA. Date: 16 November 2013, 19:54:25. Source: Own work. Author: Daderot.
Description: Euphorbia mammillaris specimen, Gaiser Conservatory, Manito Park, Spokane, Washington, USA. Date: 9 November 2010. Source: Own work. Author: Daderot. Permission(Reusing this file): Public domain.
