Spiny Plumless Thistle in Washington Co., Maryland (6/30/2017).

View Record Details Photo by Sue Muller MBP List

Spiny Plumeless Thistle blooming in Washington Co., Maryland (7/22/2013).

View Record Details Photo by Jim Stasz MBP List

Spiny Plumeless Thistle blooming in Washington Co., Maryland (7/22/2013).

Photo by Jim Stasz MBP List

Spiny Plumeless Thistle in Washington Co., Maryland (9/25/2020). (c) smuller, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 352468 - Psn: 45)

Spiny Plumeless Thistle in Washington Co., Maryland (9/25/2020). (c) smuller, some rights reserved (CC BY-NC).

View Record Details Photo by Sue Muller MBP List

Spiny Plumeless Thistle in Washington Co., Maryland (9/25/2020). (c) smuller, some rights reserved (CC BY-NC).

View Record Details Photo by Sue Muller MBP List

Spiny Plumeless Thistle in Allegany Co., Maryland (6/16/2012).

View Record Details Photo by Kimberly Booth MBP List

Spiny Plumeless Thistle in Washington Co., Maryland (6/25/2017).

View Record Details Photo by Wayne Longbottom MBP List

Spiny Plumeless Thistle in Frederick Co., Maryland (7/17/2018). (c) Nelson, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 247142 - Psn: 200)

Spiny Plumeless Thistle in Frederick Co., Maryland (7/17/2018). (c) Nelson, some rights reserved (CC BY-NC).

View Record Details Photo by Nelson via iNaturalist MBP List

Map Snapshot

43 Records

GA AL WA FR CL MO HO BA BC HA CE PG AA CV CH SM KE QA CN TA DO WI SO WO

Seasonality Summary

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Resources

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View at Maryland Plant Atlas Search Flora of North America Search Mid-Atlantic Herbaria Consortium Search Norton-Brown Herbarium Search MNPS Facebook posts

Citations

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MBP marks as "Invasive" any taxon listed in the Maryland Invasive Species Council (MISC) list of Invasive Species of Concern in Maryland. You can read their criteria and review the lists here: https://mdinvasives.org/species-of-concern/. Use of media featured on Maryland Biodiversity Project is only permitted with express permission of the photographer.

Spiny Plumless Thistle in Washington Co., Maryland (6/30/2017). View Record Details Media by Sue Muller.

Spiny Plumeless Thistle blooming in Washington Co., Maryland (7/22/2013). View Record Details Media by Jim Stasz.

Spiny Plumeless Thistle blooming in Washington Co., Maryland (7/22/2013). Media by Jim Stasz.

Spiny Plumeless Thistle in Washington Co., Maryland (9/25/2020). (c) smuller, some rights reserved (CC BY-NC). View Record Details Media by Sue Muller.

Spiny Plumeless Thistle in Allegany Co., Maryland (6/16/2012). View Record Details Media by Kimberly Booth.

Spiny Plumeless Thistle in Washington Co., Maryland (6/25/2017). View Record Details Media by Wayne Longbottom.

Spiny Plumeless Thistle in Frederick Co., Maryland (7/17/2018). (c) Nelson, some rights reserved (CC BY-NC). View Record Details Media by Nelson via iNaturalist.