Having two wings or feather-like structures arranged on opposite sides; resembling a feather with barbs on both sides.
From bi- (two) + pennate (feather-like, from Latin penna meaning feather or wing). Used in botany and zoology to describe bilateral symmetry.
Bipennate leaves look like feathers—ferns are full of them, and this shape is perfect for photosynthesis because it captures light from multiple angles!
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