Erigeron glaucus, occurs on the northern Channel Islands, especially Tukan.  And also occurs along the coast from central California into the pacific northwest coastal areas.  Blooms Spring through Summer, grows 8 to 12 inches tall by about 2 feet wide.

Perityle incana, endemic to Guadalupe island.  Get's a few feet all around, blooms spring summer.  Looks like a smaller version of Eriophyllum nevinii.  Photo by Brad Hollingsworth, Perityle growing on side of cliff on Guadalupe Island, Baja California.  Like the other plants in this Blog it likes sun, tolerates some shade.  It's not a shade plant per se, even though the sun angle at the moment this photo was taken has it in the shade.

Elymus condensatus 'Canyon Prince' in bloom, aka California Wild Rye, a cultivar found originally on Prince Island, an islet off of Tukan, aka 'San Miguel Island'.   Bluish light grey foliage color.  A large clumping grass, get's around four foot plus all around.  Seed spikes summer to fall.   The rough-pink flowers around the Canyon Prince is Eriogonum grande rubescens.  Both the Canyon Prince form of the species and the Eriogonum g. r. are native to Prince Island.

E. g. r. in front with pink flowers gets about a foot tall and spreads a few feet, endemic to the northern SoCaL islands.  E. gig. in back with white flowers gets 4 to 8 feet tall and a little wider, largest species of the genus, endemic to southern SoCaL islands.  Both bloom Spring to Summer.  Location in Ocean Beach / Pt. Loma.

Picture at top is a wild form at Torrey Pines park, Cor. fil. ssp. linifolia.  Lower photo is a selected cultivar of the basic species 'filaginifolia', called 'Silver Carpet', which was found along the Big Sur coast.  Main bloom Spring to Summer, though can bloom longer.  The subspecies 'filaginifolia'(Cor. fil. ssp. filaginifolia.) is native to the SoCaL islands.

Grindelia stricta platyphylla, grows about 6" tall by a few feet wide, blooms Summer into Fall, native to the northern channel islands, as well as central and northern coastal California. 

Native to beach areas typically in regular sandy beach soil on the mainland and islands, though can grow in sandy loam soil too, and some heavier soils fairly well.  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.  Low and spreading usually, though there are some variations.

Vine native to Anacapa Islands(this particular variety of the species), during winter-spring can grow abundantly with light pink blurred into white flowers.  If given peripheral watering (not near trunk) can bloom for much of the year, but, if let to get to dry, as in nature, it typically only blooms mid-winter through spring.

Blooms in Summer, greyish lacey foliage, foliage and bloom structures are somewhat reflective to 'Fern Leaf Lyonothamnus'.  Blooms whitish, fading to brown.  Gets around 3 to 5 feet.  Native to Limu, Wimat, and Anyapax.

 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.  Best in part shade or continually moist full sun.  Native to Wimat, Limu, Pimu, and a broad range on the mainland, in the more protected and moister areas such as north slopes, drainage gullies, canyon bottoms, and mountains.