| 21. | The species is most similar to Calystegia occidentalis which can occur in the same region occasionally.
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| 22. | Shasta Indians coincided blooming " Ranunculus occidentalis " with salmon runs in the summer.
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| 23. | The larvae feed on the American sycamore tree ( " Platanus occidentalis " ).
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| 24. | The brown pelican ( " Pelecanus occidentalis " ) also resides in this area.
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| 25. | Native to Australia, " Myrmecia occidentalis " is mainly distributed in Western Australia.
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| 26. | Some have recommended that " A . elegans occidentalis " be granted full species status.
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| 27. | This bird is often misidentified as the chiming wedgebill ( " Psophodes occidentalis " ).
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| 28. | These two species are " Alloschemone occidentalis " and " Alloschemone inopinata ".
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| 29. | Additionally " C . occidentalis " generally has more triangular leaves with less distinct lobing.
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| 30. | For social wasps, like " B . occidentalis ", nestmate recognition is crucial.
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