Bacopa monnieri
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Also called smooth water hyssop (Bacopa monnieri)
The four stamens are fused to the petals in Bacopa monnieri
Herb-of-grace
Key West Field Guide, vegetablePlantaginaceae
Small Baby Jump Up
Key West Field Guide, vegetableNative to the Florida Keys (more info here)
Mecardonia procumbens flower and leaves
Mecardonia procumbens flower and bud side view
Minute Explorations 