• Scenic View from Inspiration Point, Anacapa Island ©timhaufphotography.com

    Channel Islands

    National Park California

There are park alerts in effect.
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  • San Miguel Island Closure

    In the interest of public safety, the U.S. Navy is closing San Miguel Island until further notice due to recent concerns of possible unexploded ordnance. More »

  • Santa Barbara Island Closed Due to Storm Damage

    Santa Barbara Island is closed to public access due to damage from the recent storms to the pier landing ladder. The closure will be in place until a new ladder can be fabricated and installed. The closure is expected to last over a month. More »

  • Public Closures on Santa Barbara Island

    Certain Santa Barbara Island trails are closed to all public entry to proctect breeding populations of California brown pelicans. More »

Plants

Derek Lohuis
 

Channel Islands National Park supports a diverse terrestrial flora, including many rare, relict, and endemic species, as well as many nonnative species. Numerous plants are rare on the islands but have a wider distribution on the mainland. On the other hand, due to environmental conditions and isolation from the mainland, many of the plants that are native on the California mainland do not grow here. A total of about 790 plant taxa, including species, subspecies, varieties, and forms, have been identified in the park, of which about 578 are native and 205 are nonnative.

Each island supports a unique assemblage of vegetative communities, which differ due to climate, microhabitats, topography, geology, soils, plant colonization history, isolation, and land use history. Many of the islands' native vegetative communities have been greatly altered by people and the introduction of nonnative species and are in various stages of recovery. The major vegetative community types on the islands include coastal dune, coastal bluff, coastal sage scrub, grasslands, chaparral, island oak woodlands, mixed hardwood woodlands, pine stands, and riparian areas. Currently, the most extensive vegetation communities on the islands are grassland and coastal sage scrub with significant areas of chaparral on Santa Cruz Island, and to a lesser degree, on Santa Rosa Island. Various phases of coastal bluff scrub constitute the next largest category. Mixed broadleaf woodland stands, oak woodlands, and pine stands are scattered throughout on sheltered slopes and canyons, or on ridges exposed to frequent moist fogs. Smaller but no less significant vegetation communities include coastal dune, baccharis scrub, caliche scrub, and wetlands.

Did You Know?

Anacapa Island lighthouse                         timhaufphotography.com

The Anacapa Island lighthouse, turned on in 1932, was the last permanent lighthouse built on the west coast.