Endemic Plants

Plant Family

Asteraceae (sunflower family)
Cliff Malacothrix (Malacothrix saxatilis var. implicata)
Island Hazardia (Hazardia detonsa)
Island Malacothrix (Malacothrix squalida)	Endangered
Santa Cruz Island Malacothrix (Malacothrix indecora)	Endangered

Berberidaceae (barberry family)
Island Barberry (Berberis pinnata ssp.insularis)	Endangered

Brassicaceae (mustard family)
Hoffman's Rock Cress (Arabis hoffmannii)	Endangered
Santa Cruz Island Fringepod (Thysanocarpus conchuliferus)	Endangered
Santa Cruz Island Rock Cress (Sibara filifolia)	Endangered

Cistaceae (rockrose family)
Island Rush-rose (Helianthemum greenei)	Threatened

Convolvulaceae (morning-glory family)
Island Morning-glory (Calystegia macrostegia)

Crassulaceae (stonecrop family)
Candleholder Dudleya (Dudleya candelabrum)	Rare
Greene's Dudleya (Dudleya greenei)
Santa Cruz Island Live-forever (Dudleya nesiotica)	Threatened

Ericaceae (heath family)
Island Manzanita (Arctostaphylos tomentosa ssp. insulicola)
McMinn's Manzanita (Arctostaphylos viridissima)	Single Island Endemic
Santa Cruz Island Manzanita (Arctostaphylos insularis)	Single Island Endemic
Subcordate Manzanita (Arctostaphylos tomentosa ssp. subcordata)

Fabaceae (pea family)
Island Deerweed (Lotus dendroideus var. dendroideus)
San Miguel Milkvetch (Astragalus miguelensis)
Santa Cruz Island Bird's-foot Trefoil (Lotus argophyllus var. niveus)	Endangered, Single Island Endemic

Fagaceae (oak family)
Island Oak (Quercus tomentella)
Island Scrub Oak (Quercus pacifica)
MacDonald Oak (Quercus xmacdonaldii)

Grossulariaceae (gooseberry family)
Santa Cruz Island Gooseberry (Ribes thacherianum)	Rare, Single Island Endemic

Malvaceae (mallow family)
Santa Cruz Island Bush Mallow (Malacothamnus fasiculatus suppnesioticus)	Endangered, Single Island Endemic

Papaveraceae (poppy family)
Channel Island TreePoppy (Dendromecon harfordii)

Polemoniaceae (phlox family)
Island Gilia (Gilia nevinii)

Polygonaceae (buckwheat family)
Island Buckwheat (Eriogonum grande var. grande)
Red Buckwheat (Eriogonum grande var. rubescens)
Santa Cruz Island Buckwheat (Erigonum arborescens)

Rhamnaceae (buckthorn family)
Big-pod Ceanothus (Ceanothus megacarpus var. megacarpus)
Feltleaf Ceanothus (Ceanothus arboreus)
Island Ceanothus (Ceanothus megacarpus var. insularis)
Island Redberry (Rhammus pirifolia)

Rosaceae (rose family)
Island Ironwood (Lyonothamnus floribundus ssp. aspleniifolius)	Rare
Prostrate Chamise (Adenostoma fasciculatum var. prostratum)

Rubiaceae (madder family)
Narrow-leaved Bedstraw (Galium angustifolium ssp. foliosum)
Nuttall's Island Bedstraw (Galium nuttallii ssp. insulare)
Sea-cliff Bedstraw (Galium buxifolium)	Endangered

Saxifragaceae (saxifrage family)
Island Alumroot (Heuchera maxima)	Rare
Island Jepsonia (Jepsonia malvifolia)

Scrophulariaceae (figwart family)
Island Monkeyflower (mimulus flemingii) (= Mimulus aurantiacus?)
Island Paintbrush (Castilleja lanatassp. hololeuca)	Rare
Santa Cruz Island Monkeyflower (Mimulus brandegei)	Rare, Single Island Endemic

Solanaceae (nightshade family)
Island Nightshade (Solanum clokeyi)