Teasel (dipsacaceae) family
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Fuller's teasel (Dipsacus fullonum) -- in March to August -- Saint Vrain State Park, CO blue & purple CO-F
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Fuller's teasel (Dipsacus fullonum) -- in August -- Arapaho Bend, Fort Collins Natural Area, CO
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bluebuttons (Knautia arvensis) -- Bridal Veil Falls Trail, RMNP blue & purple
