Plant Image
Flowers


Yavapai County Native & Naturalized Plants

Amaranthus fimbriatus - fringed amaranth

Synonyms: Amaranthus fimbriatus var. fimbriatus
Plant Form: Forb or Subshrub

Family: Amaranthaceae


   
 
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Flower stalks
Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Flowers
Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Leaves
Sue Carnahan @http://swbiodiversity.org, Usage Rights: CC BY-NC (Attribution-Non-Commercial)
Plant
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Forb Plant Description

Origin: Native   Life Cycle: Annual   Similar Species: A. torreyi
General Desc: Annual herb, without hairs; stems erect with lateral, ascending branches, usually branched from base; main and lateral stems sparingly branched or simple.
Identification notes: Male and female flowers on the same plant. Sepals of female flowers often with fringe of hair-like or finger-like projections. Similar to A. torreyi which has shorter, often wider leaves, up to 1 inch wide; petals and sepals with smooth margins.
Height: 1 to 2-1/4 feet


Habitat

Habitat Description: Mostly found in dry, sandy or gravelly slopes, washes and disturbed habitats.
Plant Communities: Desert Scrub, Interior Chaparral, Pinyon Juniper Woodland, Disturbed Areas
Elevation: Below 5000 feet


Flower Characteristics

Color: Green and white or pinkish     Shape: Regular in elongated clusters     Tubular: Y     Flowering Period: Aug - Nov
Description: Flowers in leaf axil clusters and in a terminal spike (unbranched). Female flower petals fan-shaped to broadly spatula-shaped, bend outward, 1/16 to 1/8 inch, margins fringed with hair-like projections. Male flowers rounded at their tips, 2 to 3 stamens.


Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Simple     Leaf Shape: Narrow     Leaf Margin: Smooth     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: No     Spines: N
Leaf Description: Leaf stem 1/2 to 3/4 inch long. Leaves linear (narrow) or narrowly lance-like, 3/4 to 2-1/2 inches long, with narrowly straight sides converging at the base; smooth margins and a pointed tip.


Fruit and Seed Characteristics

Fruit Color: Black or dark reddish-brown   
Fruit Notes: Utricles (small bladder-like, thin walled fruit), ovoid, length about 1-1/2 times the width, up to 1/16 inch long, shorter than petals and sepals, wrinkled to nearly smooth, opening along a transverse circular line to release seeds.
Seed Notes: Seeds nearly flat and more or less circular, lens-shaped, less than 1/16 inch in diameter; shiny and smooth.



  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 8.0  
http://cales.arizona.edu/yavapaiplants/SpeciesDetailForb.php  
Last Updated: Dec 13, 2022
Content Questions/Comments: Email Matt Halldorson  
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