''Eutrochium dubium'', also called coastal plain joe pye weed, is a North American flowering plant in the family Asteraceae. It is native to the eastern United States and Canada, primarily the Atlantic coastal plain from Georgia to Nova Scotia. ''Eutrochium dubium'' is a

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of t ...

perennial plant herb sometimes as much as 170 cm (68 inches or 5 2/3 feet) tall. Stems are sometimes purple, sometimes green with purple spots. The plant produces numerous flower heads in flat-topped arrays, each head has 4-10 dark purple (rarely pink or white) disc florets but no ray florets. The flowers are attractive to birds. ''Eutrochium dubium'' prefers full sun to part shade. It will grow in a variety of soil types, provided the soil does not dry out.

References

dubium Flora of the Eastern United States Flora of Nova Scotia Plants described in 1812 Flora without expected TNC conservation status {{Eupatorieae-stub