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Vegetative

 39-Smallest plants

[FMP-field: image]
The Lemnaceae, like Wolffia shown on this photo, are the smallest flowering plants. They lack a well- differentiated stem and leaves and instead have leaf-like photosynthetic thalli. Full size "leaves" of Wolffia are only a few millimeters in size.
Photo by K. R. Robertson of plants growing in Illinois.
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