For pollen to be released in Crotalaria the insect must depress the

For pollen to be released in Crotalaria the insect must depress the
  • A.
    wing
  • B.
    keel
  • C.
    standard
  • D.
    antepetalous stamen
  • E.
    antesepalous stamen
Correct Answer: Option B
Explanation
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