Muhlenbergia microsperma

Species category

Weed

Common name

littleseed muhly

Diagnostic characters

Planting unit

FloretFloret:
A small flower in a clustered inflorescence (e.g., sunflower, grasses). In grasses, a floret consists of the lemma, palea, stamens, and pistil.

Shape

Lanceolate

Size

  • Length 2.2–2.5 mm 
  • Width 0.5–0.6 mm 
  • Thickness 0.5–0.6 mm 

Color

Light brown to black

Texture

ScabrousScabrous:
Rough to the touch, covered with minute points of very short, stiff hairs.

Lemma

ScabrousScabrous:
Rough to the touch, covered with minute points of very short, stiff hairs.
with long awnAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).

Palea

Nearly obscured by lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.

Other structures

AwnsAwn:
A narrow, bristle-like organ, as on the glumes or lemmas of grasses (Poaceae).
are 10 to 30 mm long.

Identification notes

Lateral sides of callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
and rachillaRachilla:
The axis of a spikelet.
are pubescentPubescent:
Having hairs.
.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Muhlenbergia microsperma (DC.) Kunth

Synonyms

Agrostis debilis (Kunth) Spreng.
Agrostis microcarpa hort. ex Steud.
Agrostis microsperma Lag.
Agrostis setosa (Kunth) Spreng.
Muhlenbergia debilis (Kunth) Kunth
Muhlenbergia debilis (Kunth) Trin.
Muhlenbergia fasciculata Trin.
Muhlenbergia microsperma (DC.) Trin.
Muhlenbergia purpurea Nutt.
Muhlenbergia ramosissima Vasey
Muhlenbergia setosa (Kunth) Kunth
Muhlenbergia setosa (Kunth) Trin.
Podosemum debile Kunth
Podosemum setosum Kunth
Trichochloa debilis (Kunth) Roem. & Schult.
Trichochloa microsperma DC.
Trichochloa setosa (Kunth) Roem. & Schult.

 Muhlenbergia microsperma.  Awns that are 10 to 30 mm long. 
Muhlenbergia microsperma. Awns that are 10 to 30 mm long.