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Floridata: Physostegia virginiana
http://www.floridata.com/ref/P/phys_vir.cfm
Photo, description, distribution, propagation and uses
Henriette's plant photos: Physostegia virgini
http://www.ibiblio.org/herbmed/pictures/p10/pages/physostegia-virginiana-1.htm
Photo of Physostegia virginiana
Physostegia parviflora
http://www.em.ca/garden/nat_physostegia_parviflora.html
Photo and description