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Polygonum aviculare L.

4 photos.
A spindly weed of waste places, its common names are almost endless.
"Common knotweed", "hindering knotweed", "knot grass", "goose grass", "door grass", etc., etc.

ITIS Taxonomic Serial No. 20876

 

 

 

 

 

 

 


1.  Late July.  Several plants on decomposed granite.

2 .  Early September.  Blossoms in axils of
stem leaves.

3 .  Early September.  Closer view.


4.  July 22, 2009.  Another stem section with
white blossoms.

Photo 1 taken on Finger Mountain
along the Dalton Highway.
62°  21' N,  150° 28' W
Elev. 2150 ft.

Photos 2 and 3 taken in Fairbanks.

Photo 4 taken at Circle Hot Springs
65°  28.96' N,  144° 38.32' W
Elev. 900 ft.