Calamovilfa longifolia

Species category

Revegetation or Rangeland

Common name

prairie sandreed

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: 6 mm
  • Width: 1 mm
  • Thickness: 1 mm

Color

Brown

Texture

Smooth

Lemma

Pointed and clasping

Palea

Bowed outward with a longitudinal groove

Other structures

Tuft of long, silky hair protruding laterally from the callusCallus:
The hard base of grass florets or spikelets, just above the point of disarticulation.
.

Identification notes

The laterally protruding hair is unique. The caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
is round in the cross-section, and the endospermEndosperm:
Nutritive tissue originating from union of the two polar nuclei with a sperm nucleus.
is quite translucent.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Poaceae

Valid name

Calamovilfa longifolia (Hook.) Scribn.

Synonyms

Sporobolus rigidus (Buckley) P.M. Peterson
Vilfa rigida Buckley

 Calamovilfa longifolia.  Florets with a tuft of long, silky hair protruding laterally from the callus. 
Calamovilfa longifolia. Florets with a tuft of long, silky hair protruding laterally from the callus.