Identification


Purple/Pink Flowers


Canada Thistle (Report It!)
Cirsium arvense
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Musk Thistle (Report It!)
Carduus nutans
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Purple Loosestrife (Report It!)
Lythrum salicaria
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Purple Starthistle (Report It!)
Centaurea calcitrapa
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Russian Knapweed (Report It!)
Acroptilon repens
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Scotch Thistle (Report It!)
Onopordum acanthium
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Spotted Knapweed (Report It!)
Centaurea stoebe
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Bull Thistle
Cirsium vulgare
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Teasel
Dipsacus fullonum
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White Flowers


Diffuse Knapweed (Report It!)
Centaurea diffusa
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Hoary Cress (Report It!)
Lepidium draba
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Perennial Pepperweed (Report It!)
Lepidium latifolium
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Field Bindweed
Convolvulus arvensis
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Oxeye Daisy
Leucanthemum vulgare
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Poison Hemlock
Conium maculatum
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White Sweetclover
Melilotus albus
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Yellow Flowers


Dalmatian Toadflax (Report It!)
Linaria dalmatica
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Dyer's Woad (Report It!)
Isatis tinctoria
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Rush Skeletonweed (Report It!)
Chondrilla juncea
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Scotch Broom (Report It!)
Cytisus scoparius
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Yellow Starthistle (Report It!)
Centaurea solstitialis
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Yellow Toadflax (Report It!)
Linaria vulgaris
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Common Mullein
Verbascum Thapsus
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Klamathweed
Hypericum perforatum
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Yellow Sweetclover
Melilotus officinalis
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Inconspicuous Flowers


Russian Thistle
Salsola tragus
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Grass


Cheatgrass
Bromus tectorum
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Trees


Tree-of-heaven (Report It!)
Ailanthus altissima
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Information on many of the invasive plants on this website was adapted with permission from "Invasive Weeds of the Tahoe National Forest". Individual credits are listed in the photo and illustration captions on the site; we thank the individual photographers and organizations for permission to use their photos and/or illustrations.

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