Paspalum dilatatum

Species category

Agricultural

Common name

dallisgrass, herbe de miel, herbe sirop, hiku nua, palpalum dilate, water grass

Diagnostic characters

Planting unit

SpikeletSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.

Shape

OvateOvate:
Egg-shaped with basal end the broadest.

Size

  • Length 3–3.5 mm
  • Width 2–2.2 mm
  • Thickness 1–2 mm

Color

Light brown 

Texture

GlumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
and sterile lemmaLemma:
One of two bracts of the grass floret; it is located on the side nearest the embryo and opposite the rachilla.
are finely pubescentPubescent:
Having hairs.
along the top and sides

Lemma

Finely roughened by longitudinal rows of very fine tubercules

Palea

Strongly indented

Other structures

SpikeletsSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.
flattish, never strongly arched, short apex pointed.

Identification notes

Unit mostly found as a spikeletSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.
. A rudimentary first glumeGlume:
The pair of chaffy bracts that occur at the base of a grass spikelet, often completely enclosing it.
is sometimes present. SpikeletsSpikelet:
One or more florets that are subtended by a pair of bracts called glumes. Spikelets are pedicellate if located on a pedicle and sessile if attached directly to the rachis. Often spikelets with single florets have remnants of a second floret, usually a lemma.
are not arched but tend to be flattish. A strong midnerve is present which tends to be a bit off side.

Noxious weed seed categories

Not listed

AOSA examination list

Included

More information

For more information, see ISMA fact sheet.

Nomenclature

Family

Poaceae

Valid name

Paspalum dilatatum Poir.

 Paspalum dilatatum.  The glume and sterile Lemma are finely pubescent along the top and sides. 
Paspalum dilatatum. The glume and sterile Lemma are finely pubescent along the top and sides. 
From Left to Right: 1.  Paspalum scrobiculatum  2.  Paspalum dilatatum  3.  Paspalum laeve  4.  Paspalum notatum  5.  Paspalum setaceum  var . stramineum . Flattish spikelets.
From Left to Right: 1. Paspalum scrobiculatum 2. Paspalum dilatatum 3. Paspalum laeve 4. Paspalum notatum 5. Paspalum setaceum var. stramineum. Flattish spikelets.