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Flaigg, Norman G.
Amaranthus retroflexus L.
Synonym(s): Amaranthus retroflexus var. salicifolius
USDA Symbol: AMRE
Although native to the lower 48, this warm season annual is considered a weed by most.
Redroot pigweed develops a deep, thick taproot often pink in color (hence the name).
Bloom InformationBloom Color: Green
, WY Canada: AB
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Sibley Nature Center
- Midland, TX
Herbarium Specimen(s)NPSOT 0992
Collected Oct 12, 1994 in Bexar County by Harry Cliffe
Record Last Modified: 2008-01-05