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Asteraceae

 5-Helianthus head

[FMP-field: image]
This radiate head of Helianthus angustifolius has many strap-like yellow ray flowers around the margin and many actinomorphic brown disk flowers in the center. Note the yellow stigmas of the disk flowers (=disk florets).
Photo by K. R. Robertson of plants cultivated at the Illinois Natural History Survey.
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