PREVIOUS

NEXT

thistle (Cirsium spp.)

UWSP

Common Plants

of Wisconsin

HOME

SEEDLESS PLANTS

GYMNOSPERMS

WOODY DICOTS

DICOT HERBS a

DICOT HERBS b

DICOT HERBS c

potato

jimson weed

bindweed

plantain

butter-and-eggs

common mullein

burdock

knapweed

thistle

chicory

orange hawkweed

dandelion

aster

fleabane

goldenrod

yarrow

ox-eye daisy

common tansy

ragweed

sunflower

blazing star

bedstraw

MONOCOTS


 

thistle (Cirsium spp.; COMPOSITE FAMILY [Asteraceae]) Mostly coarse, tall biennial or perennial herbs with painfully spiny leaves.  Distinctively shaped heads typically cupped with bristly bracts, topped by a purple tuft formed by the protruding long, narrow corolla lobes of the (exclusively) tubular flowers.  The biennial species form a rosette of prickly leaves that overwinters the first year.  Roughly 12 species in our area, both native and alien.  Some alien species are invasive.  Found in marshes, prairies, and waste places.  Flowers in summer and fall.  [107]

 

Copyright information:
The images contained in the COMMON PLANTS of WISCONSIN web site may be freely used for non-profit, educational purposes, as long as complete citation information is included.

Use in any copyrighted document or any web site is prohibited without specific permission of the University of Wisconsin - Stevens Point Department of Biology.  Please contact Webmaster for more information.