BULL THISTLE Cirsium vulgare Botanical Description: Bull thistle is a biennial, and sometimes annual or monocarpic perennial, forb. In the juvenile phase, individual bull thistle plants form a single rosette with a tapro

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Date: 2005-01-29 08:36:02 Cirsium Thistle Onopordum acanthium Flora Biota Invasive plant species		BULL THISTLE Cirsium vulgare Botanical Description: Bull thistle is a biennial, and sometimes annual or monocarpic perennial, forb. In the juvenile phase, individual bull thistle plants form a single rosette with a tapro Add to Reading List Source URL: na.fs.fed.us Download Document from Source Website File Size: 183,76 KB Share Document on Facebook