Eupatorium maculatum

John Haarstad
Spotted Joe-Pye Weed is a
tall plant, growing up to six feet tall. It has a
flat-topped cluster
of fuzzy pink or purple flowers and purple stems. There are several species
of Joe-Pye weeds, supposedly named after an Indian who used
it as a medicine. Spotted Joe-Pye Weed
grows in fields
and thickets,
and also along shores of streams, ponds, and marshes. This
plant often grows in thick stands.
A stand is a large group of the same plant growing close
together. Spotted Joe-Pye Weed
leaves grow up to eight inches long. They are thick and
green with teeth
on the edges. Between three and five leaves will branch out
from the same spot on the plant's stem. This is called a
whorl
of leaves. Flowers are small, only
1/3 inch wide, but they bloom in large clusters over five
inches wide. Spotted Joe-Pye Weed blooms from July to
September. Glen Lee

Spotted Joe-Pye Weed also has underground stems, called rhizomes, which grow sideways and send up new plants. This is how Joe-Pye Weed can start a colony and form a stand. This plant is a perennial, so the above-ground parts die in the Winter and the rhizomes start new stems, leaves, and flowers the following year.
Many insects are attracted to the nectar of Spotted Joe-Pye Weed, including bees and butterflies. These animals help the plant by pollinating it. This allows it to make fruits and seeds so new plants can grow.
Spotted Joe-Pye Weed is often found growing alongside sedges, bulrushes, cattails, thistles, Queen Anne's Lace, jewelweed, ironweed, and goldenrods.
The seeds of this plant are eaten by White-footed Mice, Mallards and Wild Turkey. Plants are eaten by Eastern Cottontail and White-tailed Deer.
Relationships in Nature:
Animals
Using as Food Source Animals
Using as Shelter Associations
With Other Plants Great Spangled
Fritillary Silver-spotted Skipper Great Spangle Fritillary
Po Silver-spotted Skipper
Po
Relationship to Humans:
Spotted Joe-Pye Weed sometimes grows in gardens, but it needs moist soil to survive. It is sometimes used in medicines.