Achilleamillefoliumrosea Island Pink Yarrow Yarrow is a perennial that spreads by rhizomes. Some plants of each population will have 3- 4"clusters flowers that range from white, to pink to red.
ChlorogalumpomeridianumSoap Lily Soap Lily has long, strap-like, wavy leaves that lie along the ground, and a loose spike of small white flowers up to 2 feet high, and flowers from around May-August.
Ephedracalifornica(No common name) Evergreen shrub, 5 ft., dry areas, central and southern California stems used for tea.
Physocarpus capitatusNinebark Physocarpus capitatus, or Ninebark, is a deciduous bush with tiny white flowers in 3"-5" clusters, flowering May through July.
BidenslaevisJoaquin Sunflower Bur Marigold grows in marshy areas, along creeks, and pond edges in California and across to Virginia. A rather nice yellow daisy that works well in wetter sections of the garden.
TrifoliumClover Native clovers are mostly annuals.