White Snakeroot Ageratina altissima (Linnaeus) King & H.E. Robinson var. altissima  Synonyms: Eupatorium ageratoides, Eupatorium rugosum.

Status:

All White Snakeroot in Maryland belong to the variety altissima except for a small population along the Potomac River in Montgomery County that belong to the variety roanensis.

There are 113 records in the project database.

View species at Maryland Plant Atlas

Search Google Images

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CHSMKE QA CN TADOWISOWO
White Snakeroot blooming at Swan Creek, Anne Arundel Co., Maryland (10/5/2012). Photo by Bill Hubick. (MBP list)

White Snakeroot in Washington Co., Maryland (9/21/2019). Photo by Wendy R. Fredericks. (MBP list)

White Snakeroot blooming along a wooded trail at Swan Creek, Anne Arundel Co., Maryland (10/7/2012). Photo by Bill Hubick. (MBP list)

White Snakeroot blooming along a wooded trail at Swan Creek, Anne Arundel Co., Maryland (10/7/2012). Photo by Bill Hubick. (MBP list)

White Snakeroot blooming along a wooded trail at Swan Creek, Anne Arundel Co., Maryland (10/7/2012). Photo by Bill Hubick. (MBP list)

White Snakeroot blooming at Swan Creek, Anne Arundel Co., Maryland (10/5/2012). Photo by Bill Hubick. (MBP list)

White Snakeroot in Kent Co., Maryland (9/26/2016). Photo by Dan Small. (MBP list)

White Snakeroot blooming in Washington Co., Maryland (9/9/2013). Photo by Jim Stasz. (MBP list)

White Snakeroot blooming in early winter in Harford Co., Maryland (12/6/2015). Photo by Bill Hubick. (MBP list)

White Snakeroot in Howard Co., Maryland (3/22/2019). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

White Snakeroot in Howard Co., Maryland (3/22/2019). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

White Snakeroot in Howard Co., Maryland (3/22/2019). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

White Snakeroot in Howard Co., Maryland (3/22/2019). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

White Snakeroot with Liriomyza eupatorii leaf mines in Harford Co., Maryland (7/1/2017). Photo by Bill Hubick. (MBP list)

White Snakeroot (seeds) in Howard Co., Maryland (10/3/1981). Photo by Robert Solem. (MBP list)


View All Images

Use of images featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

View Bibliography