ISLA SAN MARTIN FLORA

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Dudleya anthonyi, Isla San Martin


Isla San Martin has maritime scrub vegetation dominated by drought-resistant shrubs and cacti. There is a small lagoon, coastal sand dunes, and coastal salt marshes.This small volcanic island is home to the large snowy white live-forever, Dudleya anthonyi, found only here.


NOTE: The following list was compiled from:

  • the UC/JEPS: Consortium database online
  • Island specialists: shared flora of the Alta and Baja California Pacific Islands by Sarah Ratay, Sula Vanderplank and Benjamin Wilder (2014)



Poaceae

  • (Avena fatua)
  • (Bromus arizonicus)
  • (Bromus berteroanus)
  • (Bromus carinatus)
  • (Bromus hordeaceus)
  • (Bromus madritensis)
  • (Distichilis spicata)
  • (Distichilis litoralis)
  • (Festuca macrostachys)
  • (Festuca octoflora)
  • (Hordeum murinum)
  • (Lamarkia aurea)
  • (Melica imperfects)
  • (Muhlenbergia microsperma)
  • (Triticum aestivum)

Themidaceae

  • (Dichelostemma capitatum)

Zosteraceae

  • (Phylospadix scouleri)
  • (Phylospadix torreyi)
  • (Zostera marina) pic

Aizoaceae

  • Crystalline Iceplant (Mesembryanthemum crystallinum)
  • Slenderleaf Iceplant (Mesembryanthemum nodiflorum)

Asteraceae

  • (Amauria rotundifolia)
  • Dwarf Coastweed (Amblyopappus pusillus)
  • (Ambrosia camphorata) [?]
  • (Coreopsis maritima)
  • (Encelia californica)
  • (Leptocyne gigantea)
  • Emory's Rockdaisy (Perityle emoryi)
  • (Pleurocoronis laphamioides var. laphamioides)
  • (Pseudognaphalium bioletti)
  • (Rafinesquia californica)
  • (Senecio lyonii) pic
  • Common Sowthistle (Sonchus oleraceous)
  • Slender Sowthistle (Sonchus tenerrimus)
  • (Uropappus lindleyi)

Boraginaceae

  • (Amsinckia inepta)
  • (Cryptantha intermedia)
  • (Heliotropium currassavicum)
  • (Phacelia hirtuosa)
  • (Phacelia ixodes var. plumosa')
  • (Phacelia parryi)
  • (Pholistoma racemosum)

Brassicaceae

  • Searockets (Cakile maritima)
  • (Descurainia pinnata)
  • Shaggyfruit Pepperweed (Lepidium lasiocarpum) [?]
  • Veiny Pepperweed (Lepidium oblongum)

Cactaceae

  • (Bergerocactus emoryi) pic is known from only a single clump on Isla San Martin
  • (Cylindropuntia prolifera) [?]
  • (Echinocereus maritimus)
  • (Ferocactus fordii) pic
  • (Lophocereus schottii) pic is known from a single plant
  • (Mammalaria dioica)
  • (Mammalaria louisae) pic
  • (Myrtlillocactus cochal)
  • (Opuntia ficus-indica) pic introduced as a food source
  • (Opuntia littoralis) known from a single plant
  • (Opuntia oricola) known from a single plant
  • (Stenocereus gummosus)

Chenopodiaceae

  • (Aphanisma blitoides)
  • (Arthrocnemum subterminale)
  • (Atriplex julaceae)
  • (Atriplex leucophylla)
  • (Atriplex pacifica)
  • (Atriplex semibaccata)
  • (Atriplex serenana)
  • (Atriplex watsonii)
  • (Chenopodium flabellifolium)
  • (Chenopodium murale)
  • (Salicornia pacifica)
  • (Salsola australis)
  • (Suaeda taxifolia)

Convolvulaceae

  • (Calystegia macrostegia ssp. cyclostegia)
  • (Calystegia macrostegia ssp. intermedia)
  • (Calystegia macrostegia ssp. macrostegia)
  • (Cuscuta californica)

Crassulaceae

  • (Crassula connata)
  • (Dudleya anthonyi) pic
  • (Dudleya anthonyi x cultrata)
  • (Dudleya cultrata)

Cucurbitaceae

  • (Marah macrocarpus)

Euphorbiaceae

  • (Euphorbia misera)
  • (Euphorbia polycarpa)

Fabaceae

  • (Acmispon mariitimus)
  • (Lupinus sparsiflorus)
  • (Syrmatium watsonii)

Geraniaceae

  • (Erodium cicutarium)
  • (Erodium moschatum)

Malvaceae

  • (Malva parviflora)

Montiaceae

  • (Calindrinia ciliata)
  • (Cistanthe maritima)
  • (Claytonia perfoliata ssp. mexicana)

Nyctaginaceae

  • (Abronia maritima) pic
  • (Mirabilis laevis)

Onagraceae

  • (Cammisoniopsis cheiranthifolia)
  • (Eulobis californica)

Papaveraceae

  • (Eschscholzia ramosa)
  • (Papaver heterophyllum)

Plantaginaceae

  • (Antirrhinum nuttallianum subsp. subsessile)
  • (Pterostegia drymarioides)

Rubiaceae

  • (Galium aparine)

Solanaceae

  • (Datura wrightii)
  • (Lycium andersonii)
  • (Lycium brevipes)
  • (Lycium californicum)
  • (Nicotiana clevelandii')
  • (Solanum americana)
  • (Solanum palmeri)
  • (Solanum umbelliferum)

Urticeae

  • (Hesperocnide tenella)
  • (Parietaria hespera)


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