<em>Druon quercusflocci</em> in Prince George's Co., Maryland (11/21/2020). (c) herpherphooray, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 331310 - Psn: 32)

Druon quercusflocci in Prince George's Co., Maryland (11/21/2020). (c) herpherphooray, some rights reserved (CC BY-NC).

View Record Details Photo by herpherphooray via iNaturalist MBP List

Druon quercusflocci in Prince George's Co., Maryland (11/21/2020). (c) herpherphooray, some rights reserved (CC BY-NC).

View Record Details Photo by herpherphooray via iNaturalist MBP List

<em>Druon quercusflocci</em> in Garrett Co., Maryland (4/21/2017). (c) Michael Ellis, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 293437 - Psn: 65)

Druon quercusflocci in Garrett Co., Maryland (4/21/2017). (c) Michael Ellis, some rights reserved (CC BY).

View Record Details Photo by Michael Ellis via iNaturalist MBP List

Druon quercusflocci in Garrett Co., Maryland (4/21/2017). (c) Michael Ellis, some rights reserved (CC BY).

View Record Details Photo by Michael Ellis via iNaturalist MBP List

<em>Druon quercusflocci</em> in Howard Co., Maryland (3/17/2021). (c) Emilio Concari, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 351079 - Psn: 77)

Druon quercusflocci in Howard Co., Maryland (3/17/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Druon quercusflocci in Howard Co., Maryland (3/17/2021). (c) Emilio Concari, some rights reserved (CC BY-NC).

View Record Details Photo by Emilio Concari MBP List

Galls of <em>Druon quercusflocci</em> on a seedling White Oak in Baltimore City, Maryland (9/5/2012). Determined by Charley Eiseman/BugGuide. (Photo ID: 43680 - Psn: 100)

Galls of Druon quercusflocci on a seedling White Oak in Baltimore City, Maryland (9/5/2012). Determined by Charley Eiseman/BugGuide.

View Record Details Photo by Thomas Wilson MBP List

Galls of Druon quercusflocci on a seedling White Oak in Baltimore City, Maryland (9/5/2012). Determined by Charley Eiseman/BugGuide.

View Record Details Photo by Thomas Wilson MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (9/29/2021). (c) Katja Schulz, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 531016 - Psn: 135)

Druon quercusflocci in Montgomery Co., Maryland (9/29/2021). (c) Katja Schulz, some rights reserved (CC BY).

View Record Details Photo by Katja Schulz via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (9/29/2021). (c) Katja Schulz, some rights reserved (CC BY).

View Record Details Photo by Katja Schulz via iNaturalist MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 465211 - Psn: 152)

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

<em>Druon quercusflocci</em> in Prince George's Co., Maryland (3/18/2022). (c) Jenny Glenn, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 536456 - Psn: 155)

Druon quercusflocci in Prince George's Co., Maryland (3/18/2022). (c) Jenny Glenn, some rights reserved (CC BY-NC).

View Record Details Photo by Jenny Glenn via iNaturalist MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (10/1/2023). (c) Emily Summerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 897234 - Psn: 166)

Druon quercusflocci in Montgomery Co., Maryland (10/1/2023). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 853146 - Psn: 171)

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

<em>Druon quercusflocci</em> in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 861469 - Psn: 175)

Druon quercusflocci in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (8/16/2025). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1333521 - Psn: 175)

Druon quercusflocci in Montgomery Co., Maryland (8/16/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (11/8/2021). (c) David, some rights reserved (<a rel='license' href='https://creativecommons.org/licenses/by-nc-sa/4.0/'>CC BY-NC-SA</a>). (Photo ID: 481612 - Psn: 177)

Druon quercusflocci in Montgomery Co., Maryland (11/8/2021). (c) David, some rights reserved (CC BY-NC-SA).

View Record Details Photo by David via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (11/8/2021). (c) David, some rights reserved (CC BY-NC-SA).

View Record Details Photo by David via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (10/15/2023). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 908833 - Psn: 178)

Druon quercusflocci in Montgomery Co., Maryland (10/15/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Druon quercusflocci</em> in Baltimore Co., Maryland (3/19/2020). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 976372 - Psn: 178)

Druon quercusflocci in Baltimore Co., Maryland (3/19/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Druon quercusflocci</em> in Anne Arundel Co., Maryland (9/17/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 697179 - Psn: 180)

Druon quercusflocci in Anne Arundel Co., Maryland (9/17/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Prince George's Co., Maryland (3/18/2022). (c) Jenny Glenn, some rights reserved (CC BY-NC).

View Record Details Photo by Jenny Glenn via iNaturalist MBP List

<em>Druon quercusflocci</em> in Montgomery Co., Maryland (9/8/2022). (c) Emily Summerbell, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by/4.0/'>CC BY</a>). (Photo ID: 644037 - Psn: 188)

Druon quercusflocci in Montgomery Co., Maryland (9/8/2022). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

<em>Druon quercusflocci</em> in Howard Co., Maryland (10/12/2024). (c) kwixted0, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1129245 - Psn: 188)

Druon quercusflocci in Howard Co., Maryland (10/12/2024). (c) kwixted0, some rights reserved (CC BY-NC).

View Record Details Photo by Kerry Wixted MBP List

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

<em>Druon quercusflocci</em> in Dorchester Co., Maryland (5/22/2022). (c) Jim Brighton, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 573591 - Psn: 195)

Druon quercusflocci in Dorchester Co., Maryland (5/22/2022). (c) Jim Brighton, some rights reserved (CC BY-NC).

View Record Details Photo by Jim Brighton MBP List

Druon quercusflocci in Montgomery Co., Maryland (9/8/2022). (c) Emily Summerbell, some rights reserved (CC BY).

View Record Details Photo by Emily Summerbell, Ph.D. via iNaturalist MBP List

Druon quercusflocci in Dorchester Co., Maryland (5/22/2022). (c) Jim Brighton, some rights reserved (CC BY-NC).

View Record Details Photo by Jim Brighton MBP List

<em>Druon quercusflocci</em> in Anne Arundel Co., Maryland (11/28/2024). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 1166084 - Psn: 200)

Druon quercusflocci in Anne Arundel Co., Maryland (11/28/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Druon quercusflocci in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC).

View Record Details Photo by Matthew Beziat MBP List

Map Snapshot

40 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

Relationships

"Forms galls on leaves of white (Quercus alba) and chestnut (Q. prinus) oaks. Galls fall with the leaves and remain on them over winter" (BugGuide, 2016).

Seasonality Summary

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Resources

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Citations

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

Druon quercusflocci in Prince George's Co., Maryland (11/21/2020). (c) herpherphooray, some rights reserved (CC BY-NC). View Record Details Media by herpherphooray via iNaturalist.

Druon quercusflocci in Garrett Co., Maryland (4/21/2017). (c) Michael Ellis, some rights reserved (CC BY). View Record Details Media by Michael Ellis via iNaturalist.

Druon quercusflocci in Howard Co., Maryland (3/17/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). View Record Details Media by Emilio Concari.

Galls of Druon quercusflocci on a seedling White Oak in Baltimore City, Maryland (9/5/2012). Determined by Charley Eiseman/BugGuide. View Record Details Media by Thomas Wilson.

Druon quercusflocci in Montgomery Co., Maryland (9/29/2021). (c) Katja Schulz, some rights reserved (CC BY). View Record Details Media by Katja Schulz via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Prince George's Co., Maryland (3/18/2022). (c) Jenny Glenn, some rights reserved (CC BY-NC). View Record Details Media by Jenny Glenn via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (10/1/2023). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Montgomery Co., Maryland (8/16/2025). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Montgomery Co., Maryland (11/8/2021). (c) David, some rights reserved (CC BY-NC-SA). View Record Details Media by David via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (10/15/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Baltimore Co., Maryland (3/19/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Anne Arundel Co., Maryland (9/17/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Prince George's Co., Maryland (3/18/2022). (c) Jenny Glenn, some rights reserved (CC BY-NC). View Record Details Media by Jenny Glenn via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (9/8/2022). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Montgomery Co., Maryland (7/24/2023). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Howard Co., Maryland (10/12/2024). (c) kwixted0, some rights reserved (CC BY-NC). View Record Details Media by Kerry Wixted.

Druon quercusflocci in Montgomery Co., Maryland (10/11/2021). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Dorchester Co., Maryland (5/22/2022). (c) Jim Brighton, some rights reserved (CC BY-NC). View Record Details Media by Jim Brighton.

Druon quercusflocci in Montgomery Co., Maryland (9/8/2022). (c) Emily Summerbell, some rights reserved (CC BY). View Record Details Media by Emily Summerbell, Ph.D. via iNaturalist.

Druon quercusflocci in Dorchester Co., Maryland (5/22/2022). (c) Jim Brighton, some rights reserved (CC BY-NC). View Record Details Media by Jim Brighton.

Druon quercusflocci in Anne Arundel Co., Maryland (11/28/2024). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.

Druon quercusflocci in Prince George's Co., Maryland (1/1/2023). (c) Matthew Beziat, some rights reserved (CC BY-NC). View Record Details Media by Matthew Beziat.