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
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Tripsacum from the Vascular Plants of North Carolina.
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 north of Mexico, vol. 25 (2003)
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.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_trda3_001_lvd
)
USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950 pnd_trda3_003_lvd
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_trda3_006_lvd
)
JK Marlow jkm0506l_26b
June Union County SC
Sumter National Forest: Tyger Ranger District
)
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.
)
JK Marlow jkm090709_004
July Greenville County SC
Roadside
)
JK Marlow jkm090709_008
July Greenville County SC
Roadside
Male flowers produce orange stamens, per Gardening with the Native Plants of Tennessee (Hunter, 2002).
)
JK Marlow jkm090709_019
July Greenville County SC
Roadside
Female flowers produce purple stigmas, per Gardening with the Native Plants of Tennessee (Hunter, 2002).
)
JK Marlow jkm090709_035
July Greenville County SC
Roadside
)
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).
)
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).
)
JK Marlow jkm090709_048
July Greenville County SC
Roadside
)
JK Marlow jkm090709_056
July Greenville County SC
Roadside
)
JK Marlow jkm090709_059
July Greenville County SC
Roadside
)
JK Marlow jkm160715_292
July McCormick County SC
)
JK Marlow jkm160715_293
July McCormick County SC
)
JK Marlow jkm160715_297
July McCormick County SC
)
JK Marlow jkm160715_325
July McCormick County SC
)
JK Marlow jkm160715_327
July McCormick County SC
)
JK Marlow jkm160715_329
July McCormick County SC
)
JK Marlow jkm160715_330
July McCormick County SC
Ligules ciliate, 2-4mm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
Gill Newberry gn08_t_dactyloides_female
August
)
Gill Newberry gn08_t_dactyloides_male
August
)
Gill Newberry gn09_tripsacum_d_habitat
September
)
Ron Lance rwl_20231003_125802_2
October Jackson County NC
Big Ridge Preserve
)
Ron Lance rwl_20231003_130418_2
October Jackson County NC
Big Ridge Preserve
Flowers unisexual, male above female on the same spike, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
)
Ron Lance rwl_20231003_130600_2
October Jackson County NC
Big Ridge Preserve
Leaves largely basal and on lower half of stem, blades to 60 x 3cm, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
)
Ron Lance rwl_20231003_131415_2
October Jackson County NC
Big Ridge Preserve
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 north of Mexico, vol. 25
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
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)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
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!
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p216
- Manual of the Grasses of the United States (Hitchcock & Chase, 1950) p790
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p140
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