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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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Sydney, New South Wales, Australia
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X Lc Gi, Nghe An Province, Vietnam
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National Taiwan University, Taipei City, TaiwanA cosmopolitan (aster) weed that originates from South America and has naturalized in Taiwan. Bidens pilosa var. radiata Family Asteraceae
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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near Patagonia, Arizona, September 2010
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Sydney, New South Wales, Australia
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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New South Wales, Australia
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
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A widespread weed, famous for its burr not its flower, and cursed in many parts of the world. Photo from central Colombia.
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Pine shaded understory in fallow, weedy pasture on low hillside in tuffaceous rhyolite gravels
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Pine shaded understory in fallow, weedy pasture on low hillside in tuffaceous rhyolite gravels
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Pine shaded understory in fallow, weedy pasture on low hillside in tuffaceous rhyolite gravels
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Pine shaded, fallow/overgrown pasture on low hillside in tuffaceous rhyolite gravels
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in small open grassy meadow among oaks and junipers on gentle terrace slope of volcanic alluvial soil and gravels of lower canyon. Note proximal pale yellow cast to normally white rays.