OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Tripsacum dactyloides var. dactyloides   FAMILY Poaceae   Go to FSUS key


INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Tripsacum dactyloides   FAMILY Poaceae

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Tripsacum dactyloides

SYNONYMOUS WITH Flora of North America

Tripsacum dactyloides var. dactyloides

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-92-001:

Tripsacum dactyloides   FAMILY Poaceae

INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)

Tripsacum dactyloides var. dactyloides

INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)

Tripsacum dactyloides var. occidentale

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)

Tripsacum dactyloides

 

COMMON NAME:
Gama Grass, Eastern Gamagrass


         To see larger pictures, click or hover over the thumbnails.

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_trda3_001_lvd

        

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950    pnd_trda3_003_lvd

        

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_trda3_006_lvd

        

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm0506l_26b

June    Union County    SC

Sumter National Forest: Tyger Ranger District

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm0506l_34

June    Union County    SC

Sumter National Forest: Tyger Ranger District

Its original habitats in our area are poorly understood, per Weakley's Flora.

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_004

July    Greenville County    SC

Roadside

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_008

July    Greenville County    SC

Roadside

Male flowers produce orange stamens, per Gardening with the Native Plants of Tennessee (Hunter, 2002).

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_019

July    Greenville County    SC

Roadside

Female flowers produce purple stigmas, per Gardening with the Native Plants of Tennessee (Hunter, 2002).

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_035

July    Greenville County    SC

Roadside

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_040

July    Greenville County    SC

Roadside

Female flowers &the grains developing from them are in bony beadlike joints, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_044

July    Greenville County    SC

Roadside

The genus is of interest because it is related to maize, per Manual of the Grasses of the United States (Hitchcock & Chase, 1950).

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_048

July    Greenville County    SC

Roadside

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_056

July    Greenville County    SC

Roadside

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm090709_059

July    Greenville County    SC

Roadside

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_292

July    McCormick County    SC

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_293

July    McCormick County    SC

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_297

July    McCormick County    SC

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_325

July    McCormick County    SC

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_327

July    McCormick County    SC

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_329

July    McCormick County    SC

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm160715_330

July    McCormick County    SC

Ligules ciliate, 2-4mm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

Gill Newberry    gn08_t_dactyloides_female

August        

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

Gill Newberry    gn08_t_dactyloides_male

August        

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

Gill Newberry    gn09_tripsacum_d_habitat

September        

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

Keith Bradley    kab_t_dactyloides_74056

September    Miami-Dade County    FL

Camp Owaissa Bauer

Flowers unisexual, male above female on the same spike, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).

image of Tripsacum dactyloides var. dactyloides, Gama Grass, Eastern Gamagrass

JK Marlow    jkm071027_069

October    Abbeville County    SC

Field

Leaves largely basal and on lower half of stem, blades to 60 x 3cm, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Tripsacum dactyloides var. dactyloides   FAMILY Poaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Tripsacum dactyloides   FAMILY Poaceae

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Tripsacum dactyloides

SYNONYMOUS WITH Flora of North America
Tripsacum dactyloides var. dactyloides

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-92-001:
Tripsacum dactyloides   FAMILY Poaceae

INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Tripsacum dactyloides var. dactyloides

INCLUDING Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Tripsacum dactyloides var. occidentale

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Tripsacum dactyloides

 

Find by SCIENTIFIC NAME:

1560

Grass, Sedge, or Rush
Perennial
Monoecious

Habitat: Roadsides, moist areas, disturbed areas, moist riverbanks, per Weakley's Flora

Native to the Carolinas & Georgia?

Common (uncommon in Mountains)

map
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Basal & low alternate, 2-ranked

RHIZOMES? STOLONS?
Rhizomes thick and knotty

FLOWER:
Spring/Summer/Fall
Unisexual

FRUIT:
Spring/Summer/Fall
Grain red
Grain

 

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



 


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