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
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Panicum from the Vascular Plants of North Carolina.
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.
)
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).
)
JK Marlow jkm090716_022
July Georgetown County SC
Huntington Beach State Park
)
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).
)
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).
)
JK Marlow jkm231104_6500b
November Horry County SC
Myrtle Beach State Park
)
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
2316
Grass, Sedge, or Rush
Perennial
Habitat: Coastal dunes and shores, per Weakley's Flora
Native to the Carolinas & Georgia
Common
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
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!
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p350
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p490
- Manual of the Grasses of the United States (Hitchcock & Chase, 1950) p699
- Wildflowers of the Carolina Lowcountry (Porcher, 1995) p085
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p143
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