The Hawaiian tarweed evolution

So Madia elegans was not the tarweed that evolved in Hawaii like I said.

It was a different tarweed; the modern species is Hemizonia fasciculata.

The Hawaiian species are Dubautia laxa, Dubautia waialealae, Dubautia scabra, Dubautia linearis, Argyroxiphium sandwicense.

Here is a reference.

Cool, huh?