Skip to main content

Vulpia myuros - annual fescue

Scientific Family
Poaceae
Synonyms
Festuca megalura, Festuca megalura var. hirsuta, Festuca myuros, Festuca myuros var. hirsuta, Vulpia megalura, Vulpia myuros var. hirsuta
Other common names
foxtail fescue
rat-tailed fescue
silvergrass
sixweeks fescue
Plant type
Grasses
Riparian
No

Grass Description

Origin
Introduced
Season
Cool
Warm

Grows in well-drained sandy soils and dry disturbed areas.

Plant Community
Disturbed Areas
Low elevation
0
High elevation
6500

General Description

Single stemmed or loosely tufted annual, with smooth stems 4 to 30 inches tall. Basal stems may lie on the ground with the tips ascending, and bending sharply at the lower nodes.

Annual; blades tightly rolled; ligules ragged, somewhat hairy; spikelets solitary, arranged in rows on one side of the seedhead axis; lower glumes less than 1/2 the length of upper; lemma distinctly hairy, awned; lemmas 5-veined, margins sometimes hairy.

Grass type
Annual
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
April
Last bloom month
July

Flower Characteristics

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

Seedhead is about 9 inches long with 1 to 3 branches per node; branches are spreading or appressed to erect. Lower branches are often enclosed in upper sheaths. Spikelets have 3 to 7 bisexual florets. Seedhead turns silver in summer and droops.

Vegetative Characteristics

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

Leaf blades are up to 4 inches long and less than 1/10 inch wide. Leaf blades are flat or margins may be rolled inward. Leaf blades are smooth on the bottom and rough or hairy on the top and light green in color.

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

This grass has little forage value because it is short lived and declines when it is closely grazed.