Plant Image
Plant
- Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)


Yavapai County Native & Naturalized Plants

Setaria pumila - yellow foxtail

Plant Form: Grass

Family: Poaceae


   
 
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Seedhead
Sue Carnahan @http://swbiodiversity.org, Usage Rights: Attribution-Non-Commercial (CC BY-NC)
Spikelets
Usage Rights: CC BY-NC (Attribution-Non-Commercial)
  Grass Description -   Glossary of Grass Terminology


Origin: Introduced    Season: Need value
Habitat Description: Found in lawns, irrigated lands, waste places, in disturbed soils.
Plant Communities:Disturbed Areas
Elevation: 4500 - 7000 feet


General Description

Desc: Mostly hairless stems ranging from green to purple-tinged bristles. The bristles turn yellow at maturity, giving the grass its name.
Identification Notes: Tufted 1 to 3 foot annual; stems branch at base, usually at sharp angles, blade with hairs on lower surface; dense, spikelike, erect seedheads; spikelets turgid, subtended by 1/8 to 1/4 inch long 5-20 bristles, ligule a dense fringe of stiff hairs.
Grass Type: Annual  Rhizomes: N  Stolons: N
Large Dense Clump (> 2 feet): N  Bushy (highly branched): N
Height with Seedheads: 24 to 36 inches
Seedhead Structure: Branched - contracted  Seedhead Droops: N
Flowering Period: Jul - Oct
Flower Characteristics

Number of Flowers per Spikelet: One-flowered  Spikelets One-sided: N
Awns: Absent   Three Awns: N  Awns Bent: N
Flower and Seedhead Notes: The seedhead is cylindrical and bristly, reaching 6 inches in length and 1/3 to 2/3 inch in width. Spikelets are approximately 1/8 inch long, green, and each spikelet has 1 to 3 bristles that are 1/4 to 1/2 inch long.
Vegetative Charcteristics

Blade Hairy: Y    Blade with White Margins: N    Blade Cross section: Flat
Blade Notes: Leaf blades may reach 12 inches in length and 7 to 12-1/2 inches in width, and have long silky hairs at the leaf bases. Auricles are absent and the ligule is a fringe of hairs reaching 1/16 inch in length.
Sheath Hairy: N    Tuft of Hairs at top of Sheath or Collar: N    Ligules: Hairy
Auricles (Ear-like lobes at collar area: N

Forage Value: Not available.


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