OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Panicum amarum   FAMILY Poaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Panicum amarum var. amarum   FAMILY Poaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 25 (2003)

Panicum amarum ssp. amarum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-81-005:

Panicum amarum   FAMILY Poaceae

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

Panicum amarum

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Panicum amarum

 

COMMON NAME:
Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass


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

image of Panicum amarum, Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass

JK Marlow    jkm090716_021

July    Georgetown County    SC

Huntington Beach State Park

Leaf blades 20-50cm long, 5-12mm wide, more or less involute, per Manual of the Grasses of the United States (Hitchcock & Chase, 1950).

image of Panicum amarum, Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass

JK Marlow    jkm090716_022

July    Georgetown County    SC

Huntington Beach State Park

image of Panicum amarum, Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass

JK Marlow    jkm090716_023

July    Georgetown County    SC

Huntington Beach State Park

Stems solitary or in clumps; plant glaucous, glabrous, w extensive rhizomes, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).

image of Panicum amarum, Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass

JK Marlow    jkm231104_6500

November    Horry County    SC

Myrtle Beach State Park

Spikelets of inflorescence dense, forming a narrow panicle to 14" long and 2" wide, per Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022).

image of Panicum amarum, Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass

JK Marlow    jkm231104_6500b

November    Horry County    SC

Myrtle Beach State Park

image of Panicum amarum, Seaside Panicum, Bitter Seabeach Grass, Bitter Panicgrass, Bitter Seaside Panic-grass

JK Marlow    jkm231104_6522

November    Horry County    SC

Myrtle Beach State Park

Leaves and stems grayish-green, per Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022).

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Panicum amarum   FAMILY Poaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Panicum amarum var. amarum   FAMILY Poaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 25
Panicum amarum ssp. amarum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-81-005:
Panicum amarum   FAMILY Poaceae

SYNONYMOUS WITH Manual of the Grasses of the US (Hitchcock & Chase, 1950)
Panicum amarum

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Panicum amarum

 

Find by SCIENTIFIC NAME:

2316

Grass, Sedge, or Rush
Perennial

Habitat: Coastal dunes and shores, per Weakley's Flora

Native to the Carolinas & Georgia

Common

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
Alternate, 2-ranked (plants lacking a rosette of overwintering basal leaves)

RHIZOMES? STOLONS?
Rhizomes long

FLOWER:
Winter/Spring/Summer/Fall

Inflorescence a panicle

FRUIT:
Winter/Spring/Summer/Fall
Grain purplish
Grain

 

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



 


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