Verbena hastata (blue vervain or swamp verbena) is a flowering plant in the vervain family, Verbenaceae. It is a herb with opposite, simple leaves which have double-serate margins, borne on stiffly erect, branching square stems. The flowers appear in summer and are purple. This is a common plant that occurs across North America. They are hardy and drought resistant.
Color | blue, purple |
---|---|
Group | Flowering Plants |
Kingdom | Plants |
Park | St. Vrain |