Linderiella occidentalis, the California fairy shrimp, a shrimp species native to California
Senna occidentalis | Platanus occidentalis | Thuja occidentalis | Sarcoscypha occidentalis | Osmorhiza occidentalis | Linderiella occidentalis | Juniperus occidentalis | Euthamia occidentalis | Emblemariopsis occidentalis | Anemone occidentalis |
DNA recovered show it forms mycorrhizal associations with Russula solaris and R. occidentalis, in keeping with the observation that many members of the genus form relationships with fungi of the family Russulaceae.
Emblemariopsis occidentalis, the flagfin blenny, blackfin blenny or redspine blenny, a fish species found around the Bahamas, Brazil and the Lesser Antilles
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Euthamia occidentalis, the western goldentop or western goldenrod, a flowering plant species common in western North America
Osmorhiza occidentalis, the western sweetroot, a flowering plant species native to much of western North America
Sarcoscypha occidentalis, the stalked scarlet cup or western scarlet cup, a mushroom species