MadSci Network: Botany

Re: need experiment to find out which pinecones are male or female

Date: Wed Jan 23 18:56:43 2002
Posted By: David Hershey, Faculty, Botany, NA
Area of science: Botany
ID: 1011758775.Bt

The persistent woody pine cones you are familiar with are all female cones. 
They originally held the seeds. 

The male cones are smaller, not woody and fall off the tree soon after they 
have released the pollen. The male cones soon decay. It is easy to miss the 
male cones because they do not remain on the tree very long. The male cones are 
not used in craft projects as the female cones are.

If it is woody or contains seeds, it is a female cone.

If it is nonwoody and contains dustlike pollen, it is a male cone.


Pine Cone Photos

Pine Cone Types

The Nature of Cones

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