green amaranth

(Amaranthus hybridus)

Conservation Status
green amaranth
  IUCN Red List

not listed

     
  NatureServe

NNR - Unranked

SNA - Not applicable

     
  Minnesota

not listed

     
           
Wetland Indicator Status
     
  Great Plains

 

     
  Midwest

 

     
  Northcentral & Northeast

 

     
           
 
Description
 
 

Green amaranth is a 12 to 80 tall, erect, annual forb that rises from a short, stout, often reddish taproot.

The stems are erect, stout, round in cross section, ribbed, and usually branched above the middle. They are usually green, sometimes reddish-purple, and hairless or nearly hairless below the inflorescence. They do not have spines at the nodes.

The leaves are alternate, egg-shaped, rhombic egg-shaped, or lance-shaped, 1¼ to 6 long, and ¾ to 2 wide, becoming slightly smaller as they ascend the stem. They are on leaf stalks that are no more than half as long as the blade. The leaf blade is tapered or narrowed at the base and tapers to a sharply pointed tip with straight sides along the tip. The upper surface is hairless or slightly hairy along the veins. The lower surface is sparsely to moderately hairy along the veins. The margins are untoothed and flat or slightly wavy.

The inflorescence is a dense, green, branched, elongated cluster (panicle) of numerous spikes at the end of the stem, as well as smaller panicles or solitary spikes rising from the upper leaf axils. The terminal inflorescence often has numerous shorter branches at the base.

Male and female flowers are produced on the same plant. Female flowers have 5 cream colored, petal-like sepals, no petals, and 3 stigmas. Male flowers have 5 cream-colored, petal-like sepals, no petals, and usually 5, sometimes 4, stamens. Male flowers are borne at the tip of the inflorescence. The sepals are sharply pointed at the tip. Each flower is subtended by one or more bracts that are sharply pointed and shorter to twice as long as the sepals. The pointed bracts give the inflorescence as bristly appearance.

The fruit is an egg-shaped to elliptic, 1 16 to long, membranous bladder (utricle) with a single seed. The bracts subtending the fruits, together with an awn at the tip, are conspicuously longer than the fruits.

 
     
 

Height

 
 

12 to 80

 
     
 

Flower Color

 
 

Cream colored

 
     
 

Similar Species

 
 

Redroot amaranth (Amaranthus retroflexus) is a more hairy plant. The sepals are rounded at the tip.

 
     
 
Habitat
 
 

Cultivated fields, abandoned fields, railroads, roadsides, stream banks, riverbanks, disturbed sites.

 
     
 
Biology
 
 

Flowering

 
 

August to October

 
     
 
Use
 
 

 

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 28, 30.

 
  11/20/2018      
         
 

Nativity

 
 

Native

 
         
 

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 (flowering plants)  
  Superorder Caryophyllanae  
 

Order

Caryophyllales (pinks, cactuses, and allies)  
 

Family

Amaranthaceae (Amaranth)  
  Subfamily Amaranthoideae  
 

Genus

Amaranthus (pigweed)  
 

Subgenus

Amaranthus  
       
 

Subordinate Taxa

 
 

 

 
       
 

Synonyms

 
 

Amaranthus chlorostachys

Amaranthus incurvatus

Amaranthus patulus

 
       
 

Common Names

 
 

green amaranth

green pigweed

hybrid amaranth

slim amaranth

smooth amaranth

smooth pigweed

 
       

 

 

 

 

 

 

 

 

Glossary

Bract

Modified leaf at the base of a flower stalk, flower cluster, or inflorescence.

 

Node

The small swelling of the stem from which one or more leaves, branches, or buds originate.

 

Panicle

A pyramidal inflorescence with a main stem and branches. Flowers on the lower, longer branches mature earlier than those on the shorter, upper ones.

 

Sepal

An outer floral leaf, usually green but sometimes colored, at the base of a flower.

 

Utricle

A small, dry, inflated, thin-walled, bladder-like fruit containing 1 seed.

       
Visitor Photos
   

Share your photo of this plant.

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach one or more photos and, if you like, a caption.

       
MinnesotaSeasons.com Photos
   

Habitat

  green amaranth    
       

Plant

  green amaranth    
       

Infructescence

  green amaranth   green amaranth
       
  green amaranth    
       
       

 

Camera

     
Slideshows
   
  Amaranthus hybridus | Slim Amaranth (Part 1 of 2)
SurvivalPlantsMemory
 
   
 
About

Uploaded on Jan 21, 2012

Visit Website: http://www.survivalplantsmemorycourse.com/

Photos used under protection of the "fair use" section (107) of the U.S. copyright act of 1976. http://www.youtube.com/watch?v=S521VcjhvMA&feature=player_embedded

 
     
  Amaranthus hybridus | Slim Amaranth (Part 2 of 2)
SurvivalPlantsMemory
 
   
 
About

Uploaded on Jan 22, 2012

PLANT NICKNAME: Female Finger

MNEMONIC: Just 1 for identifying over 60 species of amaranth.

 
     

 

slideshow

       
Visitor Videos
       

Share your video of this plant.

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Attach one or more videos or YouTube links and, if you like, a caption.

       
       
Other Videos
 
       
       
       
       
       
       

 

Camcorder

         
Visitor Sightings
   

Report a sighting of this plant.

This button not working for you?
Simply email us at info@MinnesotaSeasons.com.
Be sure to include a location.

     
     
 
MinnesotaSeasons.com Sightings
         

 

 

Binoculars


Last Updated:

About Us | Privacy Policy | Contact Us | © 2022 MinnesotaSeasons.com. All rights reserved.