giant chickweed

(Myosoton aquaticum)

Conservation Status
giant chickweed
 
  IUCN Red List

not listed

     
  NatureServe

NNA - Not applicable

SNA - Not applicable

     
  Minnesota

not listed

     
           
Wetland Indicator Status
     
  Great Plains

FAC - Facultative

     
  Midwest

FACW - Facultative wetland

     
  Northcentral & Northeast

FAC - Facultative

     
           
 
Description
 
 

The opposite leaves are up to 2 long and up to 1 wide. They are mostly stalkless except the lower leaves, which are on short stalks.

The flowers are ¼ to ½ wide when fully open. The petals are much longer than the sepals. There are 5 styles.

 
     
 

Height

 
 

4 to 32

 
     
 

Flower Color

 
 

White

 
     
 

Similar Species

 
 

The flowers of other chickweeds are no more than " wide when fully open.

Hoary alyssum (Berteroa incana) flowers have four petals, not five.

 
     
 
Habitat
 
 

Moist or wet. Woods, disturbed sites.

 
     
 
Ecology
 
 

Flowering

 
 

May to October

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 22, 28.

 
  6/13/2017      
         
 

Nativity

 
 

Native to Asia, Europe, and the Indian subcontinent. Introduced and naturalized in the United States.

 
         
 

Occurrence

 
 

 

 
         
 
Taxonomy
 
  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Spermatophytina (seed plants)  
  Class Magnoliopsida (dicots)  
  Subclass Caryophyllidae  
  Superorder Caryophyllanae  
 

Order

Caryophyllales (pinks, cactuses, and allies)  
 

Family

Caryophyllaceae (pink)  
  Subfamily Alsinoideae  
  Tribe Alsineae  
 

Genus

Myosoton (chickweed)  
       
 

Subordinate Taxa

 
 

 

 
       
 

Synonyms

 
 

Alsine aquatica

Cerastium aquaticum

Malachium aquaticum

Stellaria aquatica

 
       
 

Common Names

 
 

giant chickweed

giantchickweed

water chickweed

 
       

 

 

 

 

 

 

 

 

 

       
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Plant

  giant chickweed   giant chickweed
       

Inflorescence

  giant chickweed    
       

Flower

  giant chickweed    
       

Leaves

  giant chickweed    
       

Stem

  giant chickweed    
       
       

 

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