It occurs to me that it has been quite some time since I posted a plant picture. Should do more of those again.
I took this particular photo on a field trip to Bolivia in 2007, without knowing what it was; I merely thought that it was a rather unusual-looking daisy. Years later I then read a phylogenetic study of the Gochnatieae, and when I saw its figure 2B I went, "hey, that looks familiar!"
I cannot be sure which species it is, but it sure seems like it is a Cnicothamnus (Asteraceae); the combination of unusual capitulum size and colour, many greyish capitular bracts, and geographic provenance seem to make it a safe conclusion.
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