Pennisetum glaucum

Species category

Agricultural

Common name

pearl millet

Diagnostic characters

Planting unit

CaryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 2.5–3.2 mm
  • Width 2–2.2 mm
  • Thickness 1–1.3 mm

Color

Bluish apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
end and light brown toward the base

Texture

Smooth

Lemma

Hard and stiff

Palea

Hard and stiff

Other structures

EmbryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
is over half the caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
length.

Identification notes

Thick caryopsisCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
protrudes from the lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
and paleaPalea:
One of the thin bracts of grass floret enclosing the fruit (caryopsis) that is located on the side opposite the embryo.
at maturity. Commercial seed consists almost entirely of hulled caryopsesCaryopsis:
The single-seeded fruit or grain of the grass family (Poaceae); the fruit wall (pericarp) is united with the seed coat (testa).
with many damaged by conditioning.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Poaceae

Valid name

Pennisetum glaucum (L.) R. Br.

Synonyms

Cenchrus americanus (L.) Morrone
Panicum americanum L.
Pennisetum americanum (L.) Leeke
Pennisetum typhoides auct. non (Burm.) Stapf & C.E. Hubbard

 Pennisetum glaucum.  Commercial seeds consist almost entirely of hulled caryopses, with many damaged by conditioning.
Pennisetum glaucum. Commercial seeds consist almost entirely of hulled caryopses, with many damaged by conditioning.
 Pennisteum  spp. (most likely  P. glaucum ). Caryopses.
Pennisteum spp. (most likely P. glaucum). Caryopses.