Native & Naturalized Plants of the Carolinas & Georgia


2251

Grass, Sedge, or Rush
Perennial

Non-native: Tropical America
Documented growing wild in GA NC SC

Common

Look for it on roadsides, in fields, disturbed areas, per Weakley's Flora

map
To see a detailed map, click here


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

Kentucky Exotic Pest Plant Council, 2013
SC Exotic Pest Plant Council, 2014

 

full sun

LEAVES:
Simple
Mostly basal & low alternate, 2-ranked

RHIZOMES? STOLONS?
Cespitose and rhizomatous

FLOWER:
Spring/Summer/Fall
Inflorescence a panicle of 3-7 ascending racemose branches

FRUIT:
Spring/Summer/Fall
Grain grayish
Grain

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales

WEAKLEY'S FLORA (11/30/12):
Paspalum dilatatum ssp. dilatatum   FAMILY Poaceae

LESS THAN PLANTS NATIONAL DATABASE:
Paspalum dilatatum   FAMILY Poaceae

LESS THAN VASCULAR FLORA OF THE CAROLINAS (1968) 029-74-006:
Paspalum dilatatum   FAMILY Poaceae

LESS THAN Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Paspalum dilatatum

 

COMMON NAME:
Dallis Grass


Click or hover over the thumbnails to see larger pictures.

image of Paspalum dilatatum ssp. dilatatum

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_padi3_001_lvd

        

image of Paspalum dilatatum ssp. dilatatum

USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950    pnd_padi3_002_lvd

        

image of Paspalum dilatatum ssp. dilatatum

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_padi3_005_lvd

        

image of Paspalum dilatatum ssp. dilatatum

Gill Newberry    gn04_paspalum_diatatum

April        

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9309_pdilatatum01

August    Spartanburg County    SC

Terminal racemes with 3-7 alternate spreading branches, spikelets 4-rowed, per Forest Plants of the Southeast and Their Wildlife Uses.

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9317_purvilleivsdilata

August    Spartanburg County    SC

Culms of P. urvillei (left) 1-2m tall, vs. P. dilatatum (right) 0.6-1.2m tall, per Vascular Flora of the Carolinas.

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9319_pdilatatum02

August    Spartanburg County    SC

Sheaths sparsely hairy near base of plant and hairless above, per Forest Plants of the Southeast and Their Wildlife Uses.

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9331_pdilatatum03

August    Spartanburg County    SC

Ligule membrane 2-3mm long, per Forest Plants of the Southeast and Their Wildlife Uses.

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9338_pdilatatumvsurvel

August    Spartanburg County    SC

Ligules of P. dilatatum (on left) vs. P. urvillei (on right).

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9356_pdilatatumbloom

August    Spartanburg County    SC

Spikelets ovate, acuminate, 3-4mm [anthers & feathery stigmas protruding], per Vascular Flora of the Carolinas.

image of Paspalum dilatatum ssp. dilatatum

Glen Peterson    gkp9381_pdilatatumvsurvel

August    Spartanburg County    SC

P. dilatatum on the left, P. urvillei on the right.

image of Paspalum dilatatum ssp. dilatatum

Gill Newberry    gn09_p_diatatum_closeup2

September        

Spikelets have long silky hairs like P. urvillei, but are larger (3-3.5mm), per Wildflowers of the Eastern United States.

image of Paspalum dilatatum ssp. dilatatum

Gill Newberry    gn09_p_diatatum_habitat

September