Ceonothus is in a genus of about 50 different species of trees and shrubs. The most common in Southern California are the C. arboreus and the C. thyrsiflorus, which can grow to be 6-7 meters tall.

Adenostoma fasciculatum.  The island chamise is an evergreen chaparall shrub in the Rose family. The chamice has needle-like leaves and is a dicot, so it shreds its gray bark in long, thin shreds.
Hollyleaf Cherry, Prunus ilicifolia is an evergreen shrub to tree, average 14 ft. high and  has clusters of white flowers in spikes in March that cover the entire plant, and in the fall is very showy, covered with large red cherries.
Zauschneria californica mexicana, or California Fuscia, is a low growing perennial, and often attracts hummingbirds.
Olneya tesota, or Ironwood is one of the largest and longest-lived Sonoran Desert plants, reaching 45 feet in height and persisting as long as 1,500 years.
It is a single or multi-trunked evergreen tree, and displays lavender to pink flowers in May.
Rhus integrifolia, also known as Lemonade Berry, Lemonadeberry, or Lemonade Sumac, is a species of small tree or shrub, native to the South Coast regions of Southern California. It’s 1-8 meters in height, and is commonly found in canyons and chaparral.
Eschscholzia californica, commonly called the California poppy or golden poppy, is a perennial and annual plant, native to the United States, and the official state flower of California.
Mimulus aurantiacus, or sticky monkey flower is a flowering plant that grows in a subshrub form, native to southwestern North America from southwestern Oregon, south through most of California.
Encelia californica, or Bush Sunflower, is a chaparral shrub that is native to California and is also found outside of California, but is confined to western North America.
Heteromeles arbutifolia, commonly know as Toyon, is a common perennial shrub native to California down to Baja California. It is also know by the common names Christmas Berry and California Holly.