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Bouteloua chondrosioides - sprucetop grama

Scientific Family
Poaceae
Synonyms
Chondrosum humboldtianum, Dinebra chondrosioides
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Warm

Dry rocky slopes and rolling desert grasslands.

Plant Community
Grasslands
Interior Chaparral
Pinyon Juniper Woodlands
Low elevation
2500
High elevation
6000
Similar species
Bouteloua eludens

General Description

Tufted grass with unique purplish tinged seedheads along opposite sides of stem.

Perennial, 1 to 2 feet tall; stems firm, hard at the base; leaf sheaths rounded, not conspicuously flattened; 3 to 10 one-sided hairy spikes per plant; densely hairy seedhead stem; spikelets set closely like the teeth of a comb; 2nd glume is hairy.

Grass type
Perennial bunchgrass
Rhizomes
No
Stolons
No
Clump Diameter 2 ft or more
No
Bushy - highly branched
No
Height with Seedheads
12 inches or more
Seedhead Structure
Branched - comblike
Seedhead droops
No
First bloom month
August
Last bloom month
October

Flower Characteristics

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

Panicle of spike-like branches. Panicle is 3/4 to 2-1/2 inches long, spike-like branches are < 3/4 inch long, 3 to 8 in number, 8 to 12 spikelets per branch. Glumes unequal and 1 nerved, lemmas 3 nerved. Spikelets are hairy.

Vegetative Characteristics

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

Blades to 4 inches long, 1/16 inch (or less) wide, flat, covered with a powdery or waxy bloom, bases with nipple-like based hairs on the margins, similar hairs sometimes present on either or both surfaces.

Sheath is hairy
No
Tufts of hair top of sheath or collar
No
Ligule
Hairy
Auricles
No

Good, highly palatable to all classes of livestock.