Codium fragile subsp. tomentosoides (Suringar) HariotNon-native  -  Invasive    Synonyms: Dead Man's Fingers.
Kingdom Plantae   >   Division Chlorophyta   >   Class Ulvophyceae   >   Order Bryopsidales   >   Family Codiaceae   >   Genus Codium   

Status:

Codium fragile subsp. tomentodoides is an invasive species in Maryland (MISC 2022).

Description:

Codium fragile is a green seaweed that grows attached to hard substrata in the intertidal and shallow sub-tidal zones. Plants branch repeatedly giving them a bushy appearance in the water.

Where to find:

You are likely to encounter Codium fragile in any of the coastal bays (Assawoman, Isle of Wight, or Sinepuxent). It will sometimes wash up on beaches late in the season or after summer storms.

There are 22 records in the project database.

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Codium fragile in Worcester Co., Maryland (12/13/2015). Photo by Jim Brighton. (MBP list)

Codium fragile in Worcester Co., Maryland (8/9/2021). (c) rzaengle, some rights reserved (CC BY-NC). Photo by rzaengle via iNaturalist. (MBP list)

Codium fragile in Worcester Co., Maryland (11/29/2021). (c) Wayne Longbottom, some rights reserved (CC BY-NC). Photo by Wayne Longbottom. (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/.