Tag Archives: Cirsium altissimum

Know Your Natives – Tall Thistle

Posted on October 26, 2020 by ANPS Webmaster

Tall thistle (Cirsium altissimum) of the Aster, Sunflower or Composite (Asteraceae) family is a tall biennial thistle with weak spines and pink to lavender flower heads. The genus name derives from a Greek root for “swollen vein” in reference to … Continue reading →

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