Shortish and sturdy plant compared to the Showy Milkweed.  If I had given it a common name, I would have called it Cabbage Leaf Milkweed.  (“Sand” is so easy and not at all descriptive.)  I first found this north and east of North Sterling Reservoir up near the wind towers.  I have since found two at the far western end of the walking path at the reservoir.  Apparently it is a common milkweed in western Kansas.  This is the sixth milkweed I have found in northeast Colorado.  I’m sure there are more.  The little five-petal flowers appear on all milkweeds.  Wikipedia lists 144 species of the plant in this country, not counting the many subspecies.

The seed pod.

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