New York Ironweed Vernonia noveboracensis (LInnaeus) Michaux  Synonyms: Vernonia harperi.

Status:

Locally common across the state in open wet areas. Blooms from mid-July into September.

Description:

Maryland's most common ironweed. There are three other vernonia species on the Maryland plant list. Glaucous Ironweed (Vernonia glauca) has much wider leaves that are often glaucous above compared with the long lanceolate leaves of New York Ironweed. To separate New York Iron weed from Giant Ironweed (Vernonia gigantea) you have to look at the involucral bracts of the flowers. Giant Ironweed has much wider involucral bracts than the narrow to almost threadlike involucral bracts of New York Ironweed.

Relationships:

Host to the bee species Melissodes denticulata.

Host plant for various moth species including the Eupatorium Borer Moth, Salt Marsh Moth, Partenice Tiger Moth, Ruby Tiger Moth, Ironweed Borer Moth, Red Groundling Moth, Yellow-striped Armyworm Moth, Evergreen Bagworm Moth, Hellinsia paleaceus, and the Tufted Apple Bud Moth (Database of the World's Lepidopteran Hostplants).

There are 242 records in the project database.

View species at Maryland Plant Atlas

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New York Ironweed in Washington Co., Maryland (8/7/2009). Photo by Jim Brighton. (MBP list)

New York Ironweed in Anne Arundel Co., Maryland (8/22/2011). Pappus brown to purple (Weakley 2015). Photo by Bill Harms. (MBP list)

New York Ironweed blooming in Howard Co., Maryland (9/21/2013). Photo by Joanne Solem. (MBP list)

New York Ironweed blooming in Charles Co., Maryland (8/22/2015). Photo by Jim Stasz. (MBP list)

New York Ironweed blooming in Dorchester Co., Maryland (9/3/2013). Photo by Jonathan Willey. (MBP list)

New York Ironweed blooming in Cecil Co., Maryland (9/5/2013). Photo by Jim Stasz. (MBP list)

New York Ironweed blooming in Frederick Co., Maryland (8/29/2015). Photo by Mark Etheridge. (MBP list)

New York Ironweed in Allegany Co., Maryland (8/31/2014). Photo by Kimberly Booth. (MBP list)

New York Ironweed in Anne Arundel Co., Maryland (9/4/2017). Photo by Bill Hubick. (MBP list)

New York Ironweed blooming in Allegany Co., Maryland (8/25/2015). Photo by Kimberly Booth. (MBP list)

New York Ironweed in Dorchester Co., Maryland (7/31/2016). Photo by Wayne Longbottom. (MBP list)

New York Ironweed in Anne Arundel Co., Maryland (8/16/2016). Photo by Mac Plant. (MBP list)

New York Ironweed in Caroline Co., Maryland (9/11/2016). Photo by Wayne Longbottom. (MBP list)

New York Ironweed blooming in Calvert Co., Maryland (9/7/2016). Photo by Tyler Bell. (MBP list)

New York Ironweed blooming in Montgomery Co., Maryland (8/25/2016). Photo by Robert Ferraro. (MBP list)

New York Ironweed in Anne Arundel Co., Maryland (8/31/2017). Photo by Bill Harms. (MBP list)

New York Ironweed in Montgomery Co., Maryland (8/25/2016). Photo by Robert Ferraro. (MBP list)

New York Ironweed in Queen Anne's Co., Maryland (7/23/2014). Photo by Jim Brighton. (MBP list)

New York Ironweed in bloom with a Great Spangled Fritillary in St. Mary's Co., Maryland (8/14/2017). Photo by Don Winter. (MBP list)

New York Ironweed (winter aspect) in Anne Arundel Co., Maryland (1/7/2018). Photo by Bill Hubick. (MBP list)

New York Ironweed (winter close-up) in Anne Arundel Co., Maryland (1/7/2018). Photo by Bill Hubick. (MBP list)


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