Catkin

A catkin is a slim flower cluster (a "spike") that is usually wind-pollinated but sometimes insect-pollinated. It has many flowers arranged closely along a drooping central stem.[1] Usually, it is unisexual.

It is found in many plant families, including Betulaceae, Fagaceae, Moraceae, and Salicaceae. The catkin flower arrangement has arisen at least twice independently by convergent evolution in Fagales and Salicaceae.

References

  1. ↑ Cronk Q.C.B; Needham I. and Rudall P.J. 2015. Evolution of catkins: inflorescence morphology of selected Salicaceae in an evolutionary and developmental context. Frontiers in Plant Science. 6: 1030. [1]
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