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Apiaceae

 19-Eryngium inflorescence l.s.

[FMP-field: image]
In this longitudinal section of a single Eryngium yuccifolium inflorescence, you can see that the head-like structure comes from an umbel, it is just that the flowers do not have pedicels.
Photo by K. R. Robertson at Loda Cemetery Prairie, Iroquois County, Illinois.
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