Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (10/20/20):
Xanthium orientale
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Oriental Cocklebur is readily identified by its 3 cm long (or so), elliptical, dark brown fruits that are beset with hooked prickles. Read more at Vascular Plants of North Carolina.
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Xanthium strumarium var. canadense
FAMILY
Asteraceae
INCLUDED WITHIN Flora of North America
Xanthium strumarium
INCLUDED WITHIN How many names for a beloved genus? -- Coalescent-based species delimitation in Xanthium (Asteraceae) (Tomasello, 2018)
Xanthium orientale
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Xanthium strumarium
INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Xanthium strumarium var. canadense
COMMON NAME:
Oriental Cocklebur
NameThatPlant has no pictures at this time. You might try this link: Flora of the Southeastern United States
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (10/20/20):
Xanthium orientale
FAMILY
Asteraceae
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Xanthium strumarium var. canadense
FAMILY
Asteraceae
INCLUDED WITHIN
Flora of North America
Xanthium strumarium
INCLUDED WITHIN
How many names for a beloved genus? -- Coalescent-based species delimitation in Xanthium (Asteraceae) (Tomasello, 2018)
Xanthium orientale
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Xanthium strumarium
INCLUDED WITHIN
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Xanthium strumarium var. canadense
4372
Forb
Annual
Habitat: Disturbed ground, roadsides, pastures, barnyards, per Weakley's Flora
Original distribution unclear, widespread in e. N. America & nearly cosmopolitan
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.)
IS THE PLANT "ARMED"?
Leaf axils lack spines; fruits are beset with hooked prickles
LEAVES:
Simple
Alternate
FLOWER:
Summer/Fall
Staminate corollas greenish-brown
Unisexual
Staminate corollas 5-lobed; pistillate flowers without corollas
Inferior ovary
FRUIT:
Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!