Top 10 Noxious Weed List for Douglas County

Rank
Urban & Small Acre
Ranch, Farm & Forest
1
Armenian (Himalayan) Blackberry
Armenian (Himalayan)  Blackberry
2
Scotch Broom
Scotch Broom
3
French Broom
French Broom
4
Puncturevine
English Hawthorn
5
Spurge Laurel
Yellow/Purple Star Thistle
6
Tansy Ragwort
Tansy Ragwort
7
Yellow Star Thistle
Milk Thistle
8
Fuller's Teasel
Spurge Laurel (Forest/Shade)
9
Bull Thistle
Meadow Knapweed
10
Spurge, Mediterranean & Mole
Poison Hemlock