OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA (10/20/20):
Megathyrsus maximus   FAMILY Poaceae   NEW! Click to go to FSUS key


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, 1938)
Panicum maximum

 

COMMON NAME:
Guinea Grass


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

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

 

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, 1938)
Panicum maximum

 

Find by scientific name:

4017

Grass, Sedge, or Rush
Perennial

Non-native: Africa

Documented growing wild in GA - SC

Rare

Habitat: A wide variety of dry to moist disturbed areas, pine plantations, fruit groves, per Weakley's Flora

map
NEW! Click here to see a range map (and maybe identification notes) 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
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!



 


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