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Houndstongue (Cynoglossum officinale)

Houndstongue (Cynoglossum officinale)

by | Jul 19, 2021

Houndstongue (Cynoglossum officinale), Houn’s Tongue Family (Cynoglossum), a noxious weed on the Colorado State Noxious Weed B-List, Common along roadsides, in vacant lots, and other disturbed places, with occurrences scattered across the state from plains to...
Bindweed (Convulvus arvensis)

Bindweed (Convulvus arvensis)

by | Jul 18, 2021

Bindweed (Convulvus arvensis), Morning Glory Family (Convolvulaceae), an introduced perennial vine from Europe and Asia which is very invasive but not on the Colorado Noxious Weed list, common along roadsides, in fields, and other disturbed places, from plains to...
Tall Tumbleweed (Sisymbrium altissimum)

Tall Tumbleweed (Sisymbrium altissimum)

by | Jul 16, 2021

Tall Tumbleweed (Sisymbrium altissimum), Mustard Family (Brassicaceae), an introduced species, common in distrubed areas, fields, grasslands, and along roadsices from plains to montane, on the eastern and western slopes. Blooms from May through October. This plant...