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Schizachyrium cirratum - Texas bluestem

Scientific Family
Poaceae
Synonyms
Andropogon cirratus
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Warm

Steep rocky canyon slopes, oak woodlands, forest openings.

Plant Community
Desert Scrub
Grasslands
Interior Chaparral
Montane Conifer Forest
Pinyon Juniper Woodlands
Low elevation
2000
High elevation
7500

General Description

Tufted or shortly rhizomatous perennial grass, 12 to 30 inches tall. Smooth waxy stems often reclining on the ground with the tips ascending but not rooting or branching at the lower nodes, reddish to sometimes purplish in color.

Perennial, up to 3 feet; blades 7 inches long, flat or folded; ligule 1/16 inch membrane; seedhead a spike of paired spikelets, subtended by a leaf; first spikelet sessile, 2-flowered with a 1 inch once bent awn; second spikelet stemmed, male, awnless.

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
Unbranched
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
No
Awns bent
Yes
Flower and Seedhead Notes

Seedhead is a single stalk projecting from the uppermost leaf sheath. Spikelets are in pairs of one sessile (no stalk) and fertile and one pediceled (stalked) and sterile. Spikelets are equal in length.

Vegetative Characteristics

Blade is hairy
No
Blade margins white
No
Blade cross-section
Flat
Involute – rolled inward on upper surface

Blades are 2-1/2 to 6-1/2 inches long and threadlike. Blades are flat or folded inward(involute). Leaf blades are smooth and covered with a waxy blue-green or gray coating.

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

An excellent forage grass.