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List by Scientific Name - List by Common Name

Polygonum argyrocoleon

Silver-sheath Knotweed

Life form2, 3: forb, annual
Habitat: roadsides, disturbed areas
leaf presence3: leaves usually present
leaf arrangement3: alternate
leaf format3: simple
Flower color2: white or whitish
Flowering period2: Feb. to Oct.
Armament2, 3: spineless
Family1, 2, 3: Polygonaceae (buckwheat family)
Status: common
Locations where collected or observed:
      Cabeza Prieta National Wildlife Refuge
      Organ Pipe Cactus National Monument

*For information on nomenclature, authorship, or plant characteristics, see these references:

copyright © Hank Jorgensen 2007