Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA (2/8/20):
Bidens pilosa
FAMILY
Asteraceae
NEW! Click to 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:
Bidens pilosa
FAMILY
Asteraceae
COMMON NAME:
Hairy Beggarticks
To see larger pictures, click or hover over the thumbnails.
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Joseph M. DiTomaso, University of California - Davis, Bugwood.org bug_5374293
Month Unknown
)
Joseph M. DiTomaso, University of California bug_5374295
Month Unknown
Ray florets 0 or (3-)5-8+; laminae whitish to pinkish (yellowish), per Flora of North America.
)
Joseph M. DiTomaso, University of California bug_5374296
Month Unknown
)
Joseph M. DiTomaso, University of California - Davis, Bugwood.org bug_5374297
Month Unknown
WEAKLEY'S FLORA (2/8/20):
Bidens pilosa
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Bidens pilosa
FAMILY
Asteraceae
2048
Forb
Annual
Non-native: Tropical America
Waif(s)
Habitat: Disturbed areas, ballast, waste areas near wool-combing mill, ballast, per Weakley's Flora
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
This plant may be causing problems in natural areas outside its native range, according to authorities such as:
LEAVES:
Simple: mostly 1-pinnately lobed
Opposite
Petioles 1-3(7)cm long
Margins serrate or entire, usually ciliate
FLOWER:
Winter/Spring/Summer/Fall
Rays: White (but usually absent)
Disc: Yellowish
Disc flowers bisexual & fertile/ Ray flowers neuter or styliferous & sterile
Inferior ovary
FRUIT:
Winter/Spring/Summer/Fall
Achene
TO LEARN MORE about this plant, look it up in a good book!