Plant Image
Plant - summer
Rimrock Verde Valley


Yavapai County Native & Naturalized Plants

Bouteloua simplex - mat grama

Synonyms: Chondrosum procumbens, Chondrosum prostratum, Chondrosum simplex
Plant Form: Grass

Family: Poaceae


   
 
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Plant w/ruler
Rimrock Verde Valley
John Kava
Plant - summer
Rim Country N. of Sedona
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Seedheads
Rimrock Verde Valley
John Kava
Seedheads - summer
Rim Country N. of Sedona
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Seedheads - summer
Rim Country N. of Sedona
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
  Grass Description -   Glossary of Grass Terminology


Origin: Native    Season: Warm
Habitat Description: Found on rocky, open slopes in grassy and open woodland shrub vegetation.
Plant Communities:Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest
Elevation: 4000 - 8000 feet


General Description

Desc: Multiple stemmed annual, stems trailing or erect and unbranched. Seedheads of 1 branch of one-sided spikelets.
Identification Notes: Annual with trailing or erect unbranched stems. Sheath smooth, ligule membranous or short-hairy. Leaves short, flat to involute. Seedhead usually a single branch of one-sided spikelets, each spikelet having 1 fertile and 1 to 2 sterile 3-awned floret.
Grass Type: Annual  Rhizomes: N  Stolons: N
Large Dense Clump (> 2 feet): N  Bushy (highly branched): N
Height with Seedheads: Less than 12 inches
Seedhead Structure: Branched - comblike branches  Seedhead Droops: N
Flowering Period: Aug - Sep
Flower Characteristics

Number of Flowers per Spikelet: Multi-flowered  Spikelets One-sided: Y
Awns: Less than 1/4 inch   Three Awns: Y  Awns Bent: N
Flower and Seedhead Notes: Seedhead usually has one curved branch of 20 to 30 spikelets. Spikelets are one-sided with 1 bisexual floret and 1 to 2 sterile florets. Fertile lemmas are hairy at bases and 3-awned with stout flattened awns.
Vegetative Charcteristics

Blade Hairy: Y    Blade with White Margins: N    Blade Cross section: Flat or involute
Blade Notes: Leaves are 3/4 to 3-1/4 inches long and <1/16 inch wide, flat to rolled inward. Top surfaces are mostly smooth, often soft hairy at the bases.
Sheath Hairy: N    Tuft of Hairs at top of Sheath or Collar: Y    Ligules: Membranous and hairy
Auricles (Ear-like lobes at collar area: N

Forage Value: Good when green and growing. Overall forage value to livestock and wildlife is very low because this is a small, short-lived annual grass.


  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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