OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Xanthium orientale   FAMILY Asteraceae   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Xanthium strumarium   FAMILY Asteraceae

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Xanthium strumarium

INCLUDED WITHIN How many names for a beloved genus? -- Coalescent-based species delimitation in Xanthium (Asteraceae) (Tomasello, 2018)

Xanthium orientale

INCLUDED WITHIN Flora of North America north of Mexico, vol. 19-20-21 (2006)

Xanthium strumarium

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)

Xanthium strumarium var. canadense

INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Xanthium strumarium var. canadense

INCLUDING Gray's Manual of Botany (Fernald, 1950)

Xanthium pensylvanicum

 

COMMON NAME:
Oriental Cocklebur


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

image of Xanthium orientale, Oriental Cocklebur

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_xape2_001_lvd

        

image of Xanthium orientale, Oriental Cocklebur

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_xast_004_lvd

        

image of Xanthium orientale, Oriental Cocklebur

USDA / Selected Weeds of the US. 1970    swus_page_445

        

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Xanthium orientale   FAMILY Asteraceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Xanthium strumarium   FAMILY Asteraceae

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Xanthium strumarium

INCLUDED WITHIN How many names for a beloved genus? -- Coalescent-based species delimitation in Xanthium (Asteraceae) (Tomasello, 2018)
Xanthium orientale

INCLUDED WITHIN Flora of North America north of Mexico, vol. 19-20-21
Xanthium strumarium

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Xanthium strumarium var. canadense

INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Xanthium strumarium var. canadense

INCLUDING Gray's Manual of Botany (Fernald, 1950)
Xanthium pensylvanicum

 

Find by SCIENTIFIC NAME:

4372

Forb
Annual

Habitat: Disturbed ground, roadsides, pastures, barnyards, per Weakley's Flora

Original distribution unclear, widespread in e. N. America & nearly cosmopolitan

Common in GA Coastal Plain (uncommon to rare elsewhere in GA-NC-SC)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

IS THE PLANT "ARMED"?
Leaf axils lack spines; fruits are beset with hooked prickles

LEAVES:
Simple
Alternate

FLOWER:
Summer/Fall
Staminate corollas greenish-brown
Staminate corollas 5-lobed; pistillate flowers without corollas
Inferior ovary
Unisexual

FRUIT:
Summer/Fall
Achene

 

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



 


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