(Mesembryanthemum crystallinum) are present in disturbed areas, especially along trails. Interestingly, this non-native plant provides shelter for the commonly-occurring endemic rattlesnake. Taxa Despite the barren, rocky appearance of the islands, they support a large number of plant species. The following is a comprehensive, but not complete, list of the native plants present on the islands. Anacardiaceae Rhus integrifolia Apiaceae Apiastrum angustifolium Daucus pusillus Asteraceae Amblyopappus pusillus Artemisia californica Baccharis sarothroides Chaenactis glabriuscula var. glabriuscula Encelia californica Eriophyllum confertiflorum Hazardia berberidis Hazardia orcuttii Lasthenia coronaria Lasthenia gracilis Leptosyne maritima Logfia filaginoides Malacothrix foliosa Malacothrix insularis Malacothrix similis Perityle emoryi Pseudognaphalium biolettii Pseudognaphalium microcephalum Pseudognaphalium ramosissimum Rafinesquia californica Stephanomeria diegensis Uropappus lindleyi Boraginaceae Cryptantha intermedia var. intermedia var. johnstonii Cryptantha maritima var. maritima Brassicaceae Descurainia pinnata var. brachycarpa var. glabra Lepidium oblongum var. insulare Cactaceae Bergerocactus emoryi Cylindropuntia prolifera Mammillaria dioica Opuntia littoralis Opuntia oricolaCaryophyllaceae Silene laciniata ssp. laciniata Spergularia macrotheca var. macrotheca Chenopodiaceae Aphanisma blitoides Atriplex canescens ssp. canescens Atriplex pacifica Atriplex serenana var. davidsonii Chenopodium californicum Extriplex californica Suaeda taxifoliaCleomaceae Peritoma arborea var. globosa Convolvulaceae Calystegia macrostegia ssp. cyclostegia ssp. intermedia Dichondra occidentalisCrassulaceae Crassula connata Dudleya anomala Dudleya attenuata ssp. attenuata Dudleya candida Dudleya lanceolata Dudleya × semiteres Cucurbitaceae Marah macrocarpa var. macrocarpa Euphorbiaceae Euphorbia miseraFabaceae Acmispon glaber Acmispon maritimus ssp. brevivexillus Acmispon watsonii Astragalus trichopodus var. lonchus Lupinus succulentus Lupinus truncatus Trifolium willdenovii Vicia hasseiHydrophyllaceae Eucrypta chrysanthemifolia var. chrysanthemifolia Phacelia distans Phacelia ixodes var. plumosa Pholistoma auritum Pholistoma racemosumLiliaceae Calochortus splendensMalvaceae Malva occidentalisMontiaceae Cistanthe maritima Claytonia perfoliata ssp. mexicana Nyctaginaceae Mirabilis laevis var. crassifolia Orchidaceae Piperia cooperiPapaveraceae Eschscholzia californica Eschscholzia ramosa Papaver heterophyllumPlantaginaceae Antirrhinum nuttallianum ssp. subsessile Collinsia heterophylla var. heterophylla Nuttallanthus texanusPoaceae Achnatherum diegoense Agrostis pallens Bromus arizonicus Bromus carinatus Distichlis spicata Elymus condensatus Elymus triticoides Melica imperfecta Muhlenbergia microsperma Nassella pulchraPolemoniaceae Gilia achilleifolia ssp. abrotanifolia Linanthus dianthiflorusPolygonaceae Eriogonum fasciculatum Pterostegia drymarioidesPolypodiaceae Polypodium californicumPteridaceae Pellaea andromedifolia var. pubescens Pentagramma triangularisRanunculaceae Clematis pauciflora Delphinium parryi ssp. maritimum Resedaceae Oligomeris linifoliaRhamnaceae Rhamnus insulaRosaceae Heteromeles arbutifolia Rubiaceae Galium angustifolium ssp. angustifolium Galium aparine Galium coronadoenseSapindaceae Aesculus parryiSaxifragaceae Jepsonia parryiSolanaceae Lycium californicum Nicotiana clevelandii Solanum americanumThemidaceae Dichelostemma capitatum ssp. capitatum Urticaceae Parietaria hespera var. californica Zosteraceae Phyllospadix scouleri Fauna There are colonies of birds that nest on the islands and can be spotted in the nearby waters like gulls, cormorants, pelicans, storm-petrels, and alcids. The Coronado Islands have the largest known colony of the rare Scripps's murrelet. Pilón de Azúcar, better known