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Plantae
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Tracheophyta
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Cycadopsida
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Williamsoniaceae
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Williamsonia
Williamsonia
Species
Williamsonia amarjolense
Williamsonia blanfordii
Williamsonia campanulatiformis
Williamsonia delawarensis
Williamsonia elocata
Williamsonia gallinacea
Williamsonia gigas
Williamsonia guptae
Williamsonia harrisiana
Williamsonia indica
Williamsonia marylandica
Williamsonia microps
Williamsonia oregonensis
Williamsonia phoenicopsoides
Williamsonia recentior
Williamsonia riesii
Williamsonia sahnii
Williamsonia santalensis
Williamsonia seniana
Williamsonia sewardiana
Williamsonia smockii
Williamsonia texana
Williamsonia virginiensis
External References
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via
GBIF.org
on 2023-06-13; License:
CC BY 4.0