Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Commelinids: Poales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Megathyrsus maximus
FAMILY
Poaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Urochloa maxima
FAMILY
Poaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Megathyrsus maximus
SYNONYMOUS WITH Grasses of Florida (Hall, 2019)
Urochloa maxima
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 24 (2007)
Megathyrsus maximus
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 25 (2003)
Urochloa maxima
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
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.
)
USDA-NRCS PLANTS Database / Hitchcock, A.S. (rev. A. Chase). 1950 pnd_pama4_001_lvd
)
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 (Hitchcock & Chase, 1950).
)
Keith Bradley kab_m_maximus_71616
August Miami-Dade County FL
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Megathyrsus maximus
FAMILY
Poaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Urochloa maxima
FAMILY
Poaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Megathyrsus maximus
SYNONYMOUS WITH
Grasses of Florida (Hall, 2019)
Urochloa maxima
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 24
Megathyrsus maximus
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 25
Urochloa maxima
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
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
4017
Grass, Sedge, or Rush
Perennial
Habitat: A wide variety of dry to moist disturbed areas, pine plantations, fruit groves, per Weakley's Flora
Non-native: Africa
Rare
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.)
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!
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".