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Muhlenbergia pauciflora - New Mexico muhly

Scientific Family
Poaceae
Plant type
Grasses
Riparian
No

Grass Description

Origin
Native
Season
Warm

Grows in open or closed forests on rocky slopes, cliffs, canyons, and rock outcrops of granitic or limestone origin.

Plant Community
Grasslands
Interior Chaparral
Montane Conifer Forest
Pinyon Juniper Woodlands
Low elevation
4000
High elevation
8000

General Description

Loosely tufted, seedhead stems wiry, erect, sometimes bent at nodes and rooting at the lower nodes; seedheads contracted with soft awns.

Tufted perennial grass without rhizomes; seedheads narrow, branches contracted and flowered from base; awns at least 1/2 inch long; second glume smooth not broken into teeth; lemmas without hairs; old sheath never flat or coiled.

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 - contracted
Seedhead droops
No
First bloom month
June
Last bloom month
November

Flower Characteristics

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

Seedhead 3 to 6 inches long, narrow, contracted, interrupted, the branches ascending, spikelet bearing nearly to their base, 1/8 inch long without awns. Lemmas prominently 3-nerved, awn 1/8 to 1 inch long, mid-nerve extending as a straight or wavy awn.

Vegetative Characteristics

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

Blades 2 to 5 inches long, less than 1/16 inch wide, flat to rolled inward, smooth below, rough on top, often with dark brown necrotic spots.

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

Fair to good.