Species Profiles
- Downy Brome (Bromus tectorum)
- Rampion bellflower (Campanula rapunculoides)
- Spotted Knapweed (Centaurea biebersteinii)
- Canada Thistle (Cirsium arvense)
- Bull Thistle (Cirsium vulgare)
- Splitlip hempnettle (Galeopsis bifida)
- Orange Hawkweed (Hieracium aurantiacum)
- Meadow Hawkweed (Hieracium caespitosum)
- Narrowleaf Hawkweed (Hieracium umbellatum)
- Yellow Toadflax (Linaria vulgaris)
- Purple Loosestrife (Lythrum salicaria)
- White Sweetclover (Melilotus alba)
- Yellow Sweetclover (Melilotus officinalis)
- Reed Canarygrass (Phalaris arundinancea)
- Perennial Sowthistle (Sonchus arvensis)
- Bird Vetch (Vicia cracca)
Mouseear Hawkweed (Hieracium pilosella)
Links:
- The Nature Conservancy, Global Invasive Species Initiative, Mouseear Hawkweed Species Management Summary
- PNW Weed Management Handbook
General Hawkseed Links:
- University of Idaho, College of Agricultural and Life Sciences, Hawkweeds webpage
- Wilson, Linda M. 2006. Key to Identification of Invasive and Native Hawkweeds (Hieracium spp.) in the Pacific Northwest. B.C. Min. For. Range, For. Prac. Br., Kamloops, B.C.
- Callihan, R. H., McCaffrey, J.P., and Miller, T. W., Hawkweeds: Hieracium aurantiacum, H. pilosella, H. pretense, H. floribundum, H. piloselloides. Pacific Northwest Extension Publication PNW 499.
- Linda Wilson and Timothy Prather, University of Idaho. Biology and Management of Invasive Hawkweeds (Hieracium spp.) in the Pacific Northwest.