Mary Keim   cc-by-nc-sa

Bidens bipinnata (Spanish Needles) is a species of annual herb in the family Asteraceae. They have a self-supporting growth form. They are associated with freshwater habitat. They are native to The Contiguous United States. They have broad leaves. Flowers are visited by sleepy orange, Psithyrus, Calleida punctata, and Melissodes vernoniae. Individuals can grow to 0.96 m.

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EOL has data for 18 attributes, including:

Known occurrences, collected specimens and observations of Spanish needles. View this species on GBIF