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Bouteloua curtipendula - sideoats grama

Scientific Family
Poaceae
Other common names
Navajita banderilla
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Warm

Found in open grasslands, limestone outcrops, rocky slopes, woodlands and forest openings.

Plant Community
Grasslands
Interior Chaparral
Montane Conifer Forest
Pinyon Juniper Woodlands
Low elevation
2500
High elevation
7000

General Description

Tufted, erect grass, which forms wiry clumps. Purplish, oat-like spikelets on one side of the seedhead stem, bleaches to tan in the fall. Basal foliage often turns shades of purple and red in the fall. Largest and coarsest of the grama grasses.

Tufted perennial, erect stems, short rhizomes. Sheaths are rounded, ligule short membranous and hairy. Leaves mostly flat, <8 inches long, hairs on margin near collar. Seedhead of short branches; spikelets one-sided, awnless or with very short awns.

Grass type
Perennial bunchgrass
Rhizomes
Yes
Stolons
No
Clump Diameter 2 ft or more
No
Bushy - highly branched
No
Height with Seedheads
24 inches or more
Seedhead Structure
Branched - contracted
Seedhead droops
No
First bloom month
June
Last bloom month
November

Flower Characteristics

Flowers per Spikelet
Multi-flowered
Spikelets One-Sided
Yes
Awns
Less than 1/4 inch
Three Awns
Yes
Awns bent
No
Flower and Seedhead Notes

Seedhead has 20 to 50 short deciduous branches off the main seedhead stem, each of which bears 3 to 8 spikelets. Spikelets have 1 fertile floret and 1 sterile floret; awns are absent or very short. Lemmas 3-veined, veins extend to <1/4 inch awns.

Vegetative Characteristics

Blade is hairy
Yes
Blade margins white
No
Blade cross-section
Flat

Leaves are flat, 1 to 12 inches long and <1/4 inch wide. Leaves have hairs on the margins of the blades near the collar.

Sheath is hairy
Yes
Tufts of hair top of sheath or collar
Yes
Ligule
Membranous and hairy
Auricles
No

Sideoats grama is highly palatable and nutritious and readily eaten by all classes of livestock and wildlife.