Spotted Joe-Pye Weed, upatoriadelphus maculatus (L.) King & H. Rob., Eupatorium maculatum, Native Minnesota Wildflower plant, Eloise Butler Wildflower Garden

	Plants of the Eloise Butler Wildflower Garden
	Common Name	Scientific Name	Plant Family	Garden Location	Prime Season
	Spotted Joe-Pye Weed	Eupatoriadelphus maculatus (L.) King & H. Rob. (Old = Eupatorium maculatum)	Aster (Composite)	Woodland and Upland	Late Summer to Early Autumn
Other names and notes	Joe-Pye Weeds have leaves in whorls of 3 to 7 leaves on tall (from 3 to 7 feet) stout stems. Flowers are purple or pink, small, but numerous in branched clusters atop the stem. This variety has a purple or purple spotted stem, hence the name. 12 to 20 flowers per cluster. Leaves are toothed, stalked, and have a single main vein and taper toward the base. this is a native plant that grows well in the home garden as a backdrop specimen. Single plants will grow into nice clumps in just a few years. Botanists have recently moved the plant in the genus Eupatoriadelphus. For details on the name click the lore button below.

Above: Flower heads forming in late July. Above Center - The purple spotted stem. Above right and below left, plants in bloom in mid-August. Below right - the characteristic leaf whorl.

Below: Seed heads of October.

Notes: Eloise Butler had catalogued this plant in her plant index as present in the Garden in 1932. It is native to Minnesota in a number of scattered counties, generally in the northern 2/3rds of the state.
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References: Plant characteristics are generally from sources 15, 16, 30, 31, 33, W2 & W3. Distribution principally from W2 and also 31, 34 and W1. Planting history generally from 1, 4 & 4a. Other sources by specific reference. See Reference List for details.

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