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Leptochloa dubia - green sprangletop

Scientific Family
Poaceae
Synonyms
Chloris dubia, Diplachne dubia., Diplachne dubia var. pringleana, Disakisperma dubium
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Warm

Dry open plateaus and rocky slopes.

Plant Community
Grasslands
Interior Chaparral
Pinyon Juniper Woodlands
Low elevation
2500
High elevation
6000

General Description

Coarse erect, few-stemmed bunchgrass. Seedheads of 2 to 15 slender and flexible drooping branches that bear spikelets of 4 to 7 florets.

Large perennial, wiry stems. Sheaths strongly keeled, purplish. Blades flat, folded or loosely revolute. Seedheads flexible, drooping, 2 to 15 branches at 90-degree angles, paired or digitately arrianged branches. Spikelets of 4 to 7 awnless florets.

Grass type
Perennial bunchgrass
Rhizomes
No
Stolons
No
Clump Diameter 2 ft or more
No
Bushy - highly branched
No
Height with Seedheads
24 inches or more
Seedhead Structure
Branched - open and spreading
Seedhead droops
Yes
First bloom month
July
Last bloom month
October

Flower Characteristics

Flowers per Spikelet
Multi-flowered
Spikelets One-Sided
No
Awns
Absent
Three Awns
No
Awns bent
No
Flower and Seedhead Notes

Seedheads 4 to 8 inches, few to many spreading, ascending or drooping branches 1 to 5 inches long. Branches are triangular in cross-section. Spikelets 4 to 7 florets. Secondary seedheads are often hidden in the lowest leaf sheaths.

Vegetative Characteristics

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

Blades dull bluish-green, flat or folded, 3 to 14 inches long and about 1/2 inch wide. Blades may be smooth, downy, or covered with stiffly appressed hairs.

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

Good for livestock, fair for wildlife when green.