Small compact plant less than 1 foot (about 2 dm), in railroad bed near Cardwell, MT.  Note the many seed heads.


Spotted knapweed seeds easily disperse when the seed heads get caught in the undercarriage of cars and trucks.


Spotted knapweed stems and seed heads (foreground right) along a ditch, next to an old railroad bed, near Cardwell, MT.
Photos by Todd Breitenfeldt, taken 1/23/2K.

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