Cinna arundinacea 

Stout Woodreed

• Average to wet soils
• Part shade to shade
• 3’ tall, 1’ to 2’ spread
• Late Summer to Fall Blooming
• Native to Ontario, open woodland forest and high moisture (but not flooded) ecosystems

New to me this year, grown from seeds from Prairie Moon Nursery https://www.prairiemoon.com/cinna-arundinacea-wood-reed-grass-prairie-moon-nursery.html 

An upright, clump forming grass species for woodland gardens, growing to 3’ or more in height and standing up well through the summer and fall.

Please check out the Prairie Moon listing at the link above for more details.

Photo from the Great Lakes image collection Via Wikimedia Commons and from Prairie Moon Nursery