8. Dracocephalum L. (dragonhead)
About 45
species, North America, Europe Asia.
Some Old World
species of Dracocephalum are cultivated as ornamental annuals in
portions of the United States, notably D. moldavica L. (Moldavica
punctata Moench) and D. thymiflorum L., but none of these has been
reported to escape in Missouri thus far. Note that in some of the older
botanical literature, species of the related genus Physostegia have
mistakenly been called Dracocephalum.