An online resource based on the award-winning nature guide

Bloodroot Seeds and Myrmecochory

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Bloodroot seeds, as well as the seeds of as many as 5% of flowering plants, have a fatty white appendage called an elaiosome attached to them which ants are very fond of.  This adaptation benefits both the ants as well as the plant.  The ants collect the seeds and take them down into their tunnels where they feed the elaiosomes to their larvae. The actual seeds are discarded underground, often in with ant compost, where their chances of germinating are enhanced. The dispersal of seeds by ants is referred to as myrmecochory. As the photographs indicate, ants don’t always wait until the seeds have dropped out of the seed pod to collect them.

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