Grant County’s Most
Commonly Found Noxious Weeds
The following 13 weeds are Grant County's most commonly found noxious weeds:
Dalmatian toadflax
Linaria dalmatica ssp. dalmatica
Yellow flowers, looks like a snapdragon
Waxy, heart-shaped leaves
Short lived perennial
Kochia
Bassia scoparia
Green, very branchy annual
Can reach heights of 7 ft tall
Develops into "tumbleweed"
jointed goatgrass
Aegilops cylindrica
knapweed, Russian
Rhaponticum repens
Pink or purple flowers
Underground rhizomes
Perennial
knapweed, diffuse
Centaurea diffusa
Highly branched stem
White or Pink flowers
Long taproot
longspine sandbur
Cenchrus longispinus
loosestrife, purple
Lythrum salicaria
Purple flowers
Grows in wet areas
Perennial
puncturevine
Tribulus terrestris
Yellow flowers
Grows flat to the ground
Sharp spikes on seeds
rush skeletonweed
Chondrilla juncea
Yellow flowers
Stick like plant, only basal leaves
Rosette looks similar to Dandelion
saltcedar
Tamarix ramosissima
thistle, Canada
Cirsium arvense
Purple flowers
Spines on stems and leaves
Smaller flower heads than Bull Thistle