Native & Naturalized Plants of the Carolinas & Georgia


4017

Grass, Sedge, or Rush
Perennial

Non-native: Africa

Documented growing wild in GA - SC

Rare

Look for it in a wide variety of dry to moist disturbed areas, pine plantations, fruit groves, per Weakley's Flora

map
To see a detailed map, click here

 

...Moist ...Dry

LEAVES:
Simple
Basal (not forming a winter rosette) & alternate, 2-ranked

RHIZOMES? STOLONS?
Rhizomes short, stout (plants in clumps)

FLOWER:
Winter/Spring/Summer/Fall
Inflorescence an open panicle of usually 20+ primary branches

FRUIT:
Winter/Spring/Summer/Fall

 

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 (10/20/20):
Megathyrsus maximus   FAMILY Poaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Urochloa maxima   FAMILY Poaceae

SYNONYMOUS WITH Flora of North America
Megathyrsus maximus

SYNONYMOUS WITH Grasses of Florida (Hall, 2019)
Urochloa maxima

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

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

 

COMMON NAME:
Guinea Grass


Click or hover over the thumbnails to see larger pictures.

image of Megathyrsus maximus, Guinea Grass

USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950    pnd_pama4_001_lvd

        

image of Megathyrsus maximus, Guinea Grass

Keith Bradley    kab_m_maximus_77722

June    Miami-Dade County    FL

Krome Bird Refuge

Panicles 20-50cm long, long rather stiff branches ascending, naked at base, per Manual of the Grasses of the United States.

image of Megathyrsus maximus, Guinea Grass

Keith Bradley    kab_m_maximus_71616

August    Miami-Dade County    FL