The following is the list of 14 federally threatened or endangered plants found in Channel Islands National Park. A strict legal process is needed in order for a plant or animal species to be listed. Information about the Endangered Species Act and the listing process can be found at the website.
Scientific Name
Common Name
Plant Family
Federal Status
Arabis hoffmannii
Hoffmann’s rockcress
Brassicaceae
(Mustard Family)
Endangered
Arctostaphylos confertiflora
Santa Rosa Island manzanita
Ericaceae
(Heather Family)
Endangered
Berberis pinnata ssp. insularis
Island barberry
Berberidaceae
(Barberry Family)
Endangered
Castilleja mollis
Soft-leaved paintbrush
Scrophulariaceae (Figwort Family)
Endangered
Dudleya nesiotica
Santa Cruz Island live-forever
Crassulaceae
(Stonecrop Family)
Threatened
Dudleya traskiae
Trask’s live-forever
Crassulaceae
(Stonecrop Family)
Endangered
Galium buxifolium
Sea-cliff bedstraw
Rubiaceae
(Madder Family)
Endangered
Gilia tenuiflora ssp. hoffmannii
Hoffmann’s slender-flowered gilia
Polemoniaceae
(Phlox Family)
Endangered
Helianthemum greenei
Island rushrose
Cistaceae
(Rockrose Family)
Threatened
Malacothamnus fasciculatus var. nesioticus
Santa Cruz Island bush mallow
Malvaceae
(Mallow Family)
Endangered
Malacothrix indecora
Santa Cruz Island chicory
Asteraceae
(Sunflower Family)
Endangered
Malacothrix squalida
Island malacothrix
Asteraceae
(Sunflower Family)
Endangered
Phacelia insularis var. insularis
Northern island phacelia
Hydrophyllaceae (Waterleaf Family)
Endangered
Thysanocarpus conchuliferus
Santa Cruz Island lace pod
Brassicaceae
(Mustard Family)
Endangered
