Species Detail Grasses

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 Legal Disclaimer