Dracocephalum parviflorum Nutt.
Family: Lamiaceae
American dragonhead
Dracocephalum parviflorum image
Emmet J. Judziewicz  
Etymology: Dracocephalum: Greek dracon for "dragon" and cephale for head, referring to form of corolla in original species
Plants: erect, annual/biennial/perennial, 8"-30" tall forb, aromatic, short lived; stems square; taprooted
Leaves: opposite, serrated, stalked
Flowers: purple, 5-parted, 1/3" long, irregularly tube-shaped; flower drawing inflorescence a 1"-5" tall, dense, terminal, conical, spike-like cluster often separated near its base; blooms May-July
Fruits: 1-seeded nutlet
Habitat: dry; disturbed areas, railroad ballast; in limy, rocky soil
Conservation Status: Native