Summary[edit] Description: Erythronium helenae—St Helena fawn lilly. The species included in the CNPS Inventory of Rare and Endangered Plants on list 4.2 (limited distribution). Photographed at Regional Parks Botanic Garden located in Tilden Regional Park near Berkeley, CA. Date: 5 April 2012, 10:41. Source: H20120405-4212--Erythronium helenae--RPBG. Author: John Rusk from Berkeley, CA, United States of America. Camera location37° 53′ 40.28″ N, 122° 14′ 38.25″ WView all coordinates using: OpenStreetMap - Google Earth 37.894522; -122.243959.