OF THE CAROLINAS & GEORGIA

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

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



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Poa compressa   FAMILY Poaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Poa compressa

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 24 (2007)

Poa compressa

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-15-003:

Poa compressa   FAMILY Poaceae

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

Poa compressa

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

Poa compressa

 

COMMON NAME:
Canada Bluegrass, Flat-stemmed Bluegrass


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

image of Poa compressa, Canada Bluegrass, Flat-stemmed Bluegrass

JK Marlow    jkm210507_0023

May    Greenville County    SC

Blackwell Heritage Preserve

image of Poa compressa, Canada Bluegrass, Flat-stemmed Bluegrass

JK Marlow    jkm210610_1241

June    Greenville County    SC

Blackwell Heritage Preserve

Leaves blue-green, 1-4mm wide, hairless, and may be spirally twisted, per www.minnesotawildflowers.info.

image of Poa compressa, Canada Bluegrass, Flat-stemmed Bluegrass

JK Marlow    jkm210610_1243

June    Greenville County    SC

Blackwell Heritage Preserve

Panicle to 4" long, longer than wide, the branches short, per www.minnesotawildflowers.info.

image of Poa compressa, Canada Bluegrass, Flat-stemmed Bluegrass

JK Marlow    jkm210610_1245

June    Greenville County    SC

Blackwell Heritage Preserve

Panicle branches usually short, in pairs, spikelet-bearing to the base, per Manual of the Grasses of the United States (Hitchcock & Chase, 1950).

image of Poa compressa, Canada Bluegrass, Flat-stemmed Bluegrass

JK Marlow    jkm210610_1296

June    Greenville County    SC

Blackwell Heritage Preserve

Culms strongly flattened, per The Grasses of North Carolina (Blomquist, 1948).

image of Poa compressa, Canada Bluegrass, Flat-stemmed Bluegrass

JK Marlow    jkm210610_1301

June    Greenville County    SC

Blackwell Heritage Preserve

Scanty pubescence on the florets gives the spikelets a smooth appearance, per The Grasses of North Carolina (Blomquist, 1948).

 

 

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

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Poa compressa   FAMILY Poaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Poa compressa

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 24
Poa compressa

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 029-15-003:
Poa compressa   FAMILY Poaceae

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

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

 

Find by SCIENTIFIC NAME:

1105

Grass, Sedge, or Rush
Perennial

Habitat: Fields, roadsides, disturbed areas, per Weakley's Flora

Non-native: Europe (?) (but often found in remote natural areas)

Uncommon (common in NC Mountains; rare in GA Piedmont & SC Coastal Plain)

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.)


Invasive?

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

 

LEAVES:
Simple
Alternate, 2-ranked

RHIZOMES? STOLONS?
Strongly rhizomatous

FLOWER:
Spring/Summer

Inflorescence a panicle, either dense or open

FRUIT:
Spring/Summer
Grain yellowish
Grain

 

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



 


Find by SCIENTIFIC NAME: