For Edgewood Park and Natural Preserve plant ID, I reference
1) Toni Corelli, "Flowering Plants of Edgewood Park and Natural Preserve, 2nd Edition", with appropriate taxonomic updates from Jepson.

2) Friends of Edgewood field guide: FriendsofEdgewood.org/field-guide
3) Plantid.net Edgewood list: http://plantid.net/PlantList.aspx?PlantList=Edgewood%20Preserve (derived from NRDB and photos.friendsofedgewood.org before those sites shut down, and curated by Friends of Edgewood )
4) Jepson: https://ucjeps.berkeley.edu/eflora/