Mystery plant

A really windy day that made me put off going out to take photos until the last hour of daylight. After wandering around in the CSU garden I saw this as I was leaving and didn't take the time to read the label.

[Milanie]

Beautiful details.

[Kathryn]

Cool looking plant, though I have no idea what that could be.

[Sand Lily]

The irony is that it was probably marked, but it was so windy I didn't look and today I can't find it at all.

[Sand Lily]

A friend researched it and discovered it was a Bigheaded Knapweed.