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Weed tongue

Devil’s tongue weed (Grateloupia turuturu)

Devil’s tongue weed is a large red alga from the NW Pacific, with broad slippery blades and a very small holdfast. Although it has been present in the UK since 1969, in recent years it seems to be spreading more aggressively. It is common in Plymouth marinas and is regularly found locally on the natural shore. It is believed to have been introduced through shellfish imports. It grows on artificial and natural hard substrata, including rock pools, shells and stones. It is tolerant of variable temperature and salinity regimes. G. turuturu’s large size and high reproductive output means it can out-compete many native macroalgae in the low intertidal and shallow subtidal zones; it can also alter trophic patterns and cause habitat loss through shading.

Environmental risk: MEDIUM

Economic risk: LOW

Image: C. Wood © MBA

Wireweed

Tufty-buff bryozoan

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Tamar Estuaries Consultative Forum
c/o Plymouth City Council
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West Hoe Road
Plymouth
PL1 3BJ

Weed tongue Devil’s tongue weed ( Grateloupia turuturu ) Devil’s tongue weed is a large red alga from the NW Pacific, with broad slippery blades and a very small holdfast. Although it has

Weed tongue

If experienced, these tend to have a Less Severe expression

  • A Sore Throat
  • An Itching Sensation Inside The Mouth
  • An Itchy Sensation On The Tongue
  • Cough
  • Irritation Of The Mouth
  • Itching Of The Ear
  • Swelling Inside The Mouth
  • Throat Irritation
INFREQUENT side effects

If experienced, these tend to have a Severe expression

  • Swelling Of The Tongue

If experienced, these tend to have a Less Severe expression

  • Difficulty Swallowing
RARE side effects

If experienced, these tend to have a Severe expression

  • A Condition With White Or Red Lesions In The Mouth With Burning Or Pain Called Oral Lichen Planus
  • A Feeling Of Throat Tightness
  • A Significant Type Of Allergic Reaction Called Anaphylaxis
  • A Type Of Allergic Reaction Called Angioedema
  • Decreased Alertness Or Consciousness
  • Eosinophilic Inflammation Of The Esophagus
  • Hashimoto Thyroiditis, A Disease Of The Thyroid
  • Increased Eosinophils In The Blood
  • Low Blood Pressure
  • Sudden Worsening Of Ulcerative Colitis
  • Worsening Asthma

If experienced, these tend to have a Less Severe expression

  • A Type Of Speech Disorder Called Dysarthria
  • An Abnormal Breathing Sound Called Stridor
  • Chest Discomfort
  • Diarrhea
  • Dizziness
  • Drowsiness
  • Erythema Or Skin Redness
  • Fast Heartbeat
  • Flu-Like Symptoms
  • Heart Throbbing Or Pounding
  • Hives
  • Hoarseness
  • Indigestion
  • Inflammation Of The Parotid Gland
  • Inflammation Of The Salivary Glands
  • Intense Abdominal Pain
  • Laryngitis
  • Muscle Tremors
  • Pneumonia
  • Puffy Face From Water Retention
  • Rapid Deep Breathing
  • Reduced Sensation In The Mouth
  • Ringing In The Ears
  • Stomatitis, A Condition With Painful Swelling And Sores Inside The Mouth
  • Swollen Lymph Nodes
  • Vomiting
  • Wheezing

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

Find information about common, infrequent and rare side effects of Allergenic Extract-Weed Pollen-Short Ragweed Sublingual.