Plant Image
Flowers


Yavapai County Native & Naturalized Plants

Amaranthus wrightii - Wright's amaranth

Other Common Names: Watson Wright's amaranth
Plant Form: Forb or Subshrub

Family: Amaranthaceae


   
 
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Plant
Arizona State University Vascular Plant Herbarium, Usage Rights: Non-Commercial (CC BY-NC)
Forb Plant Description

Origin: Native   Life Cycle: Annual
General Desc: Annual herb, without hairs. Stems erect or ascending, often whitish or tinged with red, simple to sparingly branched, occasionally branched at the base.
Identification notes: Plants mostly without hairs. Stems slender, usually <28 inches tall. Stems and leaves sometimes tinged red or purple. Flowers mostly in terminal or axillary spikes, interrupted and leafy. Sepals narrowed upward. Male and female flowers on same plant.
Height: Up to 28 inches


Habitat

Habitat Description: Naturally disturbed habitats, streambanks, canyons, semideserts.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest, Riparian, Disturbed Areas
Elevation: 1600 - 7100 feet


Flower Characteristics

Color: Reddish-green     Shape: Regular in elongated clusters     Tubular: N     Flowering Period: Jun - Oct
Description: Flowers along the stem toward the end of the plant, mostly leafless. Bracts to 2 times as long as tepals (sepals are like petals), the tip pointed. All flowers have 5 tepals. Female spoon-shaped, narrow, <1/16th inch long. Male has 4 to 5 stamens.


Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Simple     Leaf Shape: Round or oval     Leaf Margin: Smooth     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: No     Spines: N
Leaf Description: Leaf stem shorter than or equaling the blade length. Blade is 1/2 to 2-1/2 inches long, egg-shaped to lance-like, rounded at tip with narrow, straight sides converging at the base.


Fruit and Seed Characteristics

Fruit Color: Reddish-brown to black   
Fruit Type: Capsule
Fruit Notes: Small bladder-like thin walled fruit, nearly egg-shaped; smooth or slightly wrinkled, opening along a transverse circular line to release seeds; top opening like a lid. Length less than 1/16th inch, equal or subequal to tepals.
Seed Notes: Lens-shaped, 1/32 inch diameter, smooth and shiny.



  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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