Bidens Pilosa Taxonomy

True bidens pilosa in the strict sense produces three awns on the cypselae and does not produce rays or if so they are 3 mm long or shorter.

Bidens pilosa taxonomy. Bidens is a genus of flowering plants in the aster family asteraceae. Purplestem beggarticks bidens frondosa linnaeus bur marigold bidens pilosa linnaeus beggar s tick bidens tripartitaᵀ linnaeus threelobe beggarticks. However it is not a legal authority for statutory or regulatory purposes. The common names beggarticks black jack burr marigolds cobbler s pegs spanish needles stickseeds tickseeds and tickseed sunflowers refer to the fruits of the plants most of which are bristly and barbed with two sharp pappi at the end.

Bidens pilosa is part of the pilosa complex which includes neotropical taxa some of which have expanded their range into the se us. Bidens pilosa sub var. Bidens pilosa is a widespread weed of tropical subtropical and warm temperate regions of the world. Bidens pilosa forma discoidea bidens pilosa linnaeus forma discoidea schultz bipontinus in webb berthelot hist.

While every effort has been made to provide the most reliable and up to date information available ultimate legal requirements with respect to species are contained in. Itis taxonomy is based on the latest scientific consensus available and is provided as a general reference source for interested parties. The ncbi taxonomy database is not an authoritative source for nomenclature or classification please consult the relevant scientific literature for the most reliable information. Bidens pilosa linnaeus 1753.

297359 for references in articles please use ncbi txid297359 current name.