Vascular Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Eutrochium maculatum (Linnaeus) E.E. Lamont
(Joe-Pye-Weed)


Family: Asteraceae

Status: Native

Synonyms:
Eupatorium bruneri Gray
Eupatorium maculatum Linnaeus var. bruneri Gray

Eutrochium maculatum is a five to six feet tall herbaceous unbranched plant found in the spray zone of a spring. The discoid flowerheads are densely clustered and are pink to purplish. The lanceolate leaves are whorled with 4 or 5 leaves per node and have a serrate margin. They can be over six inches long. The achenes are 4-angled, with a pappus of many capillary bristles. Eutrochium maculatum was found along the area of the west fork of the Gila.
Please click on an image for a larger file.



Eutrochium maculatum, photo Zack Crockett, Middle Fork of the Gila, Gila Wilderness, August 16, 2020



Eutrochium maculatum, photo Zack Crockett, Middle Fork of the Gila, Gila Wilderness, August 16, 2020



Eutrochium maculatum, closeup of inflorescence, photo Zack Crockett, Middle Fork of the Gila, Gila Wilderness, August 16, 2020



Eutrochium maculatum, whorled serrate leaves, photo Zack Crockett, Middle Fork of the Gila, Gila Wilderness, August 16, 2020



Eutrochium maculatum, 4-angled achene with pappus of capillary bristles, photo Zack Crockett, Patrice Mutchnick, Karen Blisard & Russ Kleinman, Middle Fork of the Gila, Gila Wilderness, August 16, 2020


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