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Scleropogon brevifolius - burrograss

Scientific Family
Poaceae
Synonyms
Scleropogon longisetus
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Cool
Warm

Grassy flats, dry valleys and open mesas. Most abundant in overgrazed areas.

Plant Community
Desert Scrub
Disturbed Areas
Grasslands
Interior Chaparral
Pinyon Juniper Woodlands
Low elevation
0
High elevation
5500

General Description

A wiry low growing, light green grass of stiff, short blades, which forms dense colonies connected by creeping stems. Slender contracted seedheads having 2 to 4 inch awns.

Densely tufted perennial, wiry stolons. Leaves mostly basal, flat or folded. Sheath has noticeable veins. Ligule short, hairy. Seedheads numerous, spikelets of 5 to 10 florets, glumes exceed first floret. Lemmas have twisted awns up to 4 inches long.

Grass type
Perennial mat or sod-forming
Rhizomes
No
Stolons
Yes
Clump Diameter 2 ft or more
No
Bushy - highly branched
No
Height with Seedheads
Less than 12 inches
Seedhead Structure
Branched - contracted
Seedhead droops
No
First bloom month
May
Last bloom month
October

Flower Characteristics

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

Slender few seeded seedheads of long-awned female spikelets and awnless male spikelets mostly on separate plants. Male spikelets 5 to 10 flowered, female spikelets 3 to 5 flowered. Female lemma end in 3 twisted awns 2 to 4 inches long.

Vegetative Characteristics

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

Blades flat or folded, 3/4 to 3 inches long, thin and crowded at the base, stiff. Leaves are often hairy near the collar.

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

Little forage value partly due to long wiry awns and partly due to harsh, stiff leaves.