Paspalum dilatatum

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

Poaceae

Leaf Arrangement

alternate

Leaf Attachment

sheathing

Leaf Margin

entire

Leaf Type

simple

Leaf Shape

linear

Growth Form

graminoid

Flower Color

inconspicuous

Flower Month

April - November

Height (meters)

0.3 - 1.5

Milky Sap

No

Armed/Unarmed

Unarmed

Origin

introduced

Lifespan

perennial

Growing Season

Warm season


Wetland Class

FAC

Prairie Coefficient of Conservatism

-1

Field Characters

Identification tip: One of only two species of Paspalum with hairy spikelets. The other is P. urvelii which has 10-30 rames in the inflorescence while P. dilitatum has 3-7 rames (see photo). The spikelets of P. dilitatum are best observed under a hand lens while those of P. urvelii are visible to the naked eye. Usually only 3 racemes.

Cultural Information

Commercial seed has a purity of 70%, germination rate of 70%, 220,000 seed/lbs, and the recommended planting rate is 8-20 lbs/acre.

Animal Use

The following information is for the genus Paspalum with note that P. ciliatifolium and P. boscianum are used most extensively. (Neither are found in this database). Animals that eat the plant and its seeds: Mottled duck, Green-winged teal, Canada goose. Animals that eat its seeds: Purple gallinule, Sora rail, Ground dove, Mourning dove, Bobwhite quail, Wild turkey, Redwing blackbird, Cowbird, Junco, Pyrrhuloxia, Pine-woods sparrow, Vesper sparrow, Towhee. Animals that eat the plant: Eastern cottontail rabbit, Bison, White-tailed deer (Martin et al. 1951). Palatable and nutritious, dallisgrass provides excellent forage for all classes of livestock. It withstands continuous grazing if well established.

Natural History

The Acadian French name for dallisgrass is "Chiendent," which translates to "dog tooth" . This name was also used for P. repens (Holmes 1990). Dallisgrass is sometimes infected with ergot (see record for ergot [Claviceps purpurea}). It is thought to be apomictic (USDA 1948). It is frequently found in disturbed areas throughout Louisiana and Texas.

Habitat

Loamy disturbed soils, roadsides, fields, and waste places, moist fields or woods.

Plant Uses

Primarily used on grazing land, it can also be cut for hay and used for erosion control.