Native & Naturalized Plants of the Carolinas & Georgia


1105

Grass, Sedge, or Rush
Perennial

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

Documented growing wild in GA NC SC

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

Look for it in fields, roadsides, disturbed areas, per Weakley's Flora

map
To see a detailed map, click here


Invasive?

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

 

 

full sun

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!



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

WEAKLEY'S FLORA (2/8/20):
Poa compressa   FAMILY Poaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Poa compressa   FAMILY Poaceae

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)
Poa compressa

 

COMMON NAME:
Canada Bluegrass, Flat-stemmed Bluegrass


Click or hover over the thumbnails to see larger pictures.

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.

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).