Saturday, August 29, 2009

Bull Thistle

Bull Thistle, Circium vulgare, looks like the thorniest of the local thistles. Aren't plants just so amazing? I mean, the diversity in leaves, stems, and flowers is so incredible. Why does our world produce such variety?

This species is a biennial and reminds me of the growth pattern of mullein--first year basal rosette and second year full blown plant that we see here.

By the way, this species goes way back to one of the very first posts.

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