Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Xanthium strumarium
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Xanthium strumarium var. strumarium
FAMILY
Asteraceae
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Xanthium strumarium
SYNONYMOUS WITH How many names for a beloved genus? -- Coalescent-based species delimitation in Xanthium (Asteraceae) (Tomasello, 2018)
Xanthium strumarium
INCLUDED WITHIN Flora of North America north of Mexico, vol. 19-20-21 (2006)
Xanthium strumarium
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Xanthium strumarium var. strumarium
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Xanthium strumarium var. strumarium
SYNONYMOUS WITH Gray's Manual of Botany (Fernald, 1950)
Xanthium strumarium
COMMON NAME:
European 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 (4/14/23):
Xanthium strumarium
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Xanthium strumarium var. strumarium
FAMILY
Asteraceae
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Xanthium strumarium
SYNONYMOUS WITH
How many names for a beloved genus? -- Coalescent-based species delimitation in Xanthium (Asteraceae) (Tomasello, 2018)
Xanthium strumarium
INCLUDED WITHIN
Flora of North America north of Mexico, vol. 19-20-21
Xanthium strumarium
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Xanthium strumarium var. strumarium
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Xanthium strumarium var. strumarium
SYNONYMOUS WITH
Gray's Manual of Botany (Fernald, 1950)
Xanthium strumarium
4443
Forb
Annual
Habitat: Ballast, waste areas near ports, per Weakley's Flora
Non-native: Europe
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 with a few thin prickles
LEAVES:
Simple
Alternate
FLOWER:
Summer/Fall
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!
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".
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