To Dehisce Longitudinally …

Tree

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The Jamaica caper (Capparis jamaicensis) at Audubon House is fruiting. When open, the brown pods are quite spectacular, revealing red seeds and an orange-red lining.
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Plants in the pea family, Fabacaeae have seed pods that dehisce — split — longitudinally. Note how the brown pod pictured above is just beginning to split length-wise.
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Jamaica caper is most showy when adorned by opening seeds pods.