“The upper lip of the corolla is defined by 4 narrow lobes that are fused together, while the lower lip consists of a single narrow lobe. Exerted from the corolla, there are 5 stamens with yellow anthers and a single style with a knobby green stigma.” —Illinois Wildflowers (not a secure https page)
» Considered an invasive plant in many states.
» Species pages (not secure https pages): [ IllinoisWildflowers.info ] [ PhytoImages.siu.edu ]
Retired economics professor (“dismal scientist”). Married 40+ years to the love of my life; we have two grown daughters, both married, two granddaughters and a...