Helianthemum, the majority of the yellow shrubs here.  Also, Lotus scoparius, the other yellow flowered shrub in the photo, on the left, and further in the background, left and right, along with Artemisia californica, the greyish-green shrub, and some Lemonade Berry, Encelia california, and Mimulus behind them, not so evident in picture.  Also, one Dudleya edulis in right front corner.  Location immediately west of Salk Institute.

Bush Poppy, blooms nearly year-round, Spring most profuse, grows up to 8 feet or so.  Photo on north side, east Otay Mtn.

Light blue-grey leaves, bushy plant, grows up to 6 feet, but usually less.   Blooms winter, red berries in Spring to Summer.   Burl sprouter, grows back if killed to the ground by fire, or cutting back to the ground.  Surrounding plants in photo are green leaf Manzanita of the same species, and Chamaebatia australis.  East Otay Mtn. range.

 Evergreen Currant, foliage scent like wine/pine/apple, variable.   Young stems red, turn woody rouge brown, maroon-red flowers in panicle clusters in Winter-Spring followed by tiny red fruit.  Prefers shade or light dappled sun, foliage burns in 'too much' sun.  Easy to keep within a couple feet in height, though can get a few feet tall or more, and can spread much more.

 Native to much of the SoCaL region westward of the mountains, Toyon(Heteromeles arbutifolia) gets around 6 to 15 feet +, rarely to 25-30 feet, depending on water and location.  White blooms Spring to Fall(variable per area), red berries in Fall/Winter.  

 Both native to beach areas in regular sandy beach soil, though can grow in sandy loam soil too.  Beach Primrose(yellow flowers) blooms year-round.  Takes regular irrigation, which is necessary for good appearance and abundant Summer-Fall bloom, but survives on rainfall alone in the wild, and in moderate domestic situations.

(Clicked underlined title to see more) Abronia umbellata and Camissonia cheiranthifolia top photo, Mariners Point.  Second photo, Abronia maritima at north Blacks Beach.                            

(clicked underlined title to read more info) Gets a few feet all around, blooms most of year.  Does well in bright shade as well as moderate sun; needs moderate water throughout the year to keep it looking best.  Uncommon; occurs naturally most often in north slope drainage gullies that don't have much competing vegetation.

 Bush Penstemon(Keckiella cordifolia), sprawls to around 5 foot +, growing into and through other shrubs with it's semi-viney growth.  Red-orange flowers, blooms Spring-Summer.  Does best with moderate water throughout the year.

At Torrey Pines, Corethrogyne(Lessingia) filaginifolia ssp. linifolia.  Blooms late Spring through Summer, light lavender colored Aster flowers.