Parrot Feather Watermilfoil in Howard Co., Maryland (10/17/2004). Photo by Sue Muller. (MBP list)
Parrot Feather Watermilfoil in Frederick Co., Maryland (11/4/2017). First MBP record for Fredick County. Photo by Bill Hubick. (MBP list)
Parrot Feather Watermilfoil in Prince George's Co., Maryland (8/26/2017). (c) Michael Ellis, some rights reserved (CC BY). Photo by Michael Ellis via iNaturalist. (MBP list)
Parrot Feather Watermilfoil in Prince George's Co., Maryland (9/25/2016). Photo by Bill Hubick. (MBP list)
Parrot Feather Watermilfoil in Anne Arundel Co., Maryland (4/23/2017). Photo by Bill Hubick. (MBP list)
Parrot Feather Watermilfoil in Prince George's Co., Maryland (11/20/2015). (c) treichard, all rights reserved. Photo by Timothy Reichard. (MBP list)
Parrot Feather Watermilfoil in Worcester Co., Maryland (11/22/2020). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (MBP list)
Parrot Feather Watermilfoil in Queen Anne's Co., Maryland (4/13/2021). (c) tomfeild, some rights reserved (CC BY-NC). Photo by Tom Feild. (MBP list)
Parrot Feather Watermilfoil in Queen Anne's Co., Maryland (4/13/2021). (c) tomfeild, some rights reserved (CC BY-NC). Photo by Tom Feild. (MBP list)
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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/.