Upon Closer Inspection

This weekend, our family visited my in-laws in Sarpy County (south of Omaha).  While we were there, I grabbed a couple hours of photography time during an evening and morning when the wind was nearly calm.  In the evening, I poked around a little prairie planting in the yard.  The next morning I walked a grassy cropfield edge. 

From a distance, neither area looked like it had much going on. Very few flowers were in bloom, and there wasn’t much obvious insect activity.  As always happens with prairies, though, there’s always much more than meets the eye – sometimes you just have to get down on your knees and look for it.  I took some of my favorite photos from those couple hours and made them into a brief slideshow.

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Photo of the Week – June 15, 2012

Milkweeds have very distinctive flowers, with unique shapes and features.  I guess it shouldn’t be surprising that their pollination story is equally interesting.

Common milkweed (Asclepias syriaca) flowers. Lincoln Creek Prairie – Aurora, Nebraska.

First, milkweed flowers don’t produce thousands of of individual pollen grains that can each get carried away to other flowers by visiting insects.  Instead, milkweeds have what are called “pollinia”, or waxy masses of pollen that are designed to stick to insects.  You might think that a flower with a specialized pollen structure like that would have a system to make it easy, or even automatic, for any visiting pollinator to pick up and deliver that pollinia to the next flower.  After all, there are countless stories of flower types that facilitate pollination by forcing visiting insects to hit the right spots as they forage for nectar and pollen.

With milkweeds, not so much.

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