dark green bulrush

(Scirpus atrovirens)

               
Conservation Status

IUCN Red List

not yet assessed

 

No image available

NatureServe

N5? - Secure

SNR - Unranked

Minnesota

not listed

Wetland
Indicator
Status

Great Plains

OBL - Obligate wetland

Midwest

OBL - Obligate wetland

Northcentral & Northeast

OBL - Obligate wetland

Nativity

Native

Occurrence

Common and widepread

Habitat

Wet to moist. Wet meadows and prairies, marshes, shores, streambanks. floodplain woodland openings, roadside ditches. Full to partial sun.

Flowering

June to August

     
Height

20 to 60

     

Identification

The stems are rounded triangular. Lower leaf sheaths are brown or green, not tinged with red. Lower leaf sheaths and the base of lower leaves have conspicuous, irregularly placed cross lines (septations). They appear as very short dark green walls connecting 2 or 3 adjacent veins.

Each spike is a more or less round, densely crowded cluster of 3 to 18 spikelets.

 
Similar
Species

Georgia bulrush (Scirpus georgianus) lower leaf leaves and sheaths do not have septations.

Wool grass (Scirpus cyperinus) spikes have no more than 7 spikelets. The inflorescence is more open in appearance.


Distribution Distribution Map  

Sources: 2, 3, 4, 5, 7, 28, 29.


Comments

 


Taxonomy

Family:

Cyperaceae (sedge)

 

Subfamily:

Cyperoideae

 

Tribe:

Scirpeae

 
Synonyms

 

 
Common
Names

black bulrush

dark green bulrush

dark-green bulrush

green bulrush

   

 

 

 

 

 

 

 

 

 

       

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  Plante din Flora Romaniei, Scirpus atrovirens
Adrian Manolache
 
   
 
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Published on Jul 19, 2015

 
     

 

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