Linaria canadensis

Common Name: 
old field toadflax, annual toadflax, blue toadflax, Canada toadflax
Scientific Name: 
Linaria canadensis (L.) Dumont    syn.  Nuttallanthus canadensis
Family Name: 
Scrophulariaceae - Figwort Family
Identification Notes
Life Cycle
native annual or biennial, reproducing by seed
Stems
basal rosette with prostrate stems with ascending tips, reproductive upright and slender, smooth
Growth Habit of Oldfield Toadflax
Growth Habit of Oldfield Toadflax
Growth Habit of Oldfield Toadflax
Leaves
opposite or whorled on base stem, alternate on flowering stems, linear to narrowly oblong, entire, smooth
Leaves of Oldfield Toadflax
Leaves of Oldfield Toadflax
Leaves of Oldfield Toadflax
Flowers
light blue to sometimes white, two-lipped: two lobes above - three lobes below, two white ridges on lower lip, spur at base; terminal raceme
Flowers of Oldfield Toadflax
Flowers of Oldfield Toadflax