Plant Image
Plant - summer
Willow Dells Tr
Yavapai County Native & Naturalized Plants

Bouteloua hirsuta - hairy grama

Plant Form:Grass

Family: Poaceae

line decor
Home Plant Communities Plant List Search Forbs Search Grasses Search Woody Plants, Succulents, Cacti Additional Resources About this Website
line decor

Click on Any Image for a Larger View

Plant image
Plant - fall
Commerce Dr, Prescott
Plant image
Blades w/hairs
Mint Wash - Tr 345
Plant image
Pioneer Parkway
Plant image
Pioneer Parkway
  Grass Description -   Glossary of Grass Terminology

Origin: Native    Season: Warm
Habitat Description: Rocky slopes and dry, sandy mesas.
Plant Communities: Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland
Elevation: 4000 - 6500 feet

Similar Species: Bouteloua gracilis

General Description

Desc: Perennial mat forming grass seedheads are quite fuzzy and the tip extends about a 1/4 inch past the seeds.
Grass Type: Perennial bunchgrass  Rhizomes: N  Stolons: N
Leaf Arrangement: Leaves basal and erect  Large Dense Clump (> 2 feet): N  Bushy (highly branched): N
Height with Seedheads: 12 to 24 inches
Seedhead Structure: Branched - comblike branches  Seedhead Droops: N
Flowering Period: Aug - Oct

Flower Characteristics

Number of Flowers per Spikelet: One-flowered  Spikelet Arrangement: One-sided
Awns: Less than 1/4 inch   Three Awns: N  Awns Bent: N

Flower and Seedhead Notes: Typically 2, sometimes 1, 3 or 4 comb-like branches with 20-50 spikelets on a leafless stem. The rachis (stem of the spikelet) extends beyond the spikelets as a naked point. Second glumes with black tubercles on the back.

Vegetative Characteristics

Blade Hairy: Y  Blade with White Margin: N  Blade Cross Section: Flat or involute  
Blade Notes: Fine and narrow (< 1/8 inch), at the base of the plant, 1 to 5 inches long, flat to involute, nipple like-based hairs often present on both surfaces, usually present on the bases of the margins.
Sheath Hairy: N  Tuft of Hairs Top of Sheath or Collar: Y  Ligules: Membranous and hairy
Auricles (Ear-like lobes at base of blades): N
Vegetative Notes: Sheaths mostly smooth, slightly rough, or fuzzy, long hairs near the ligules; ligules 0.2-0.5 mm, of hairs.

Forage Value: Very good, one of the most important Arizona range grasses.

  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 3.1  
Last Updated: June 15, 2013  
Content Questions/Comments: Email Jeff Schalau  
Legal Disclaimer