Wholeleaf Indian Paintbrush (Castilleja integra)
Wholeleaf Indian Paintbrush (Castilleja integra), Broomrape Family (Orabanchaceae), native and common on dry hillsides, in shortgrass prairie, and in grassy meadows, from plains to montane, on the eastern and western slopes. Blooms from April through July. Photo by...
Houndstongue (Cynoglossum officinale)
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), 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...