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Weeds Invasive plants are one of the biggest threats to native plants, wildlife and habitats in the United States. The Hanford Reach National Monument is plagued by numerous species. (One species—cheatgrass—is so pervasive that it isn't even listed as a weed anymore!)
In any effort to assist FWS staff in identifying weeds, the Monument has put together its own 'weed book.' Familiarizing yourself with these weeds, and taking steps to prevent their spread, will help us protect this landscape into tomorrow. Invasive Species (Weed) Inventory & Management Plan (PDF - 1.36MB) Complete Hanford Reach National Monument Weed Book (PDF - Warning 4.5MB!)
Individual weed pages:
- About Weeds—36 KB PDF
- Terminology and Disposal—34 KB PDF
- Yellow Starthistle (Centaurea solistitialis L.)—362 KB PDF
- Rush Skeletonweed (Chondrilla juncea L.)—550 KB PDF
- Salt Cedar (Tamarix ramosissima Ledeb.)—456 KB PDF
- Purple Loosestrife (Lythrum salicaria L.)—298 KB PDF
- Puncturevine, Bullhorns, Goathead, Sandbur (Tribulus terrestris L.)—640 KB PDF
- Russian Knapweed (Centaurea repens L.)—442 KB PDF
- Perennial Pepperweed, Hoary Cress and related whitetops (Lepidim latifolium L., Cardaria draba (L.) Desv., C. pubescens (C.A. Meg Jarmolenko), and C. chalapensis L.)—374 KB PDF
- Diffuse Knapweed, Tumble Knapweed (Centaurea diffusa Lam.)—561 KB PDF
- Spotted Knapweed (Centaurea biebersteinii DC. = Centaurea maculosa Lam.)—648 KB PDF
- Hairy Willow-herb (Epilobium hirsutum)—202 KB PDF
- Dalmatian Toadflax (Linaria dalmatica L.)—500 KB PDF
- Camelthorn (Alhagi Pseudalhagi Bieb.)—517 KB PDF
- Canada Thistle (Cirsium arvense L.)—252 KB PDF
- Scotch Thistle (Onopordum acanthium L.)—225 KB PDF
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