Bidens bipinnata
spanish needles, spanish-needles
Family
Asteraceae
Leaf Arrangement
opposite
Leaf Attachment
petiolate
Leaf Type
biternate, compound, ternate
Growth Form
forb
Flower Color
yellow
Flower Petals
5
Flower Month
July - October
Height (meters)
0.1 - 1.5
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
annual
Field Characters
Head with ray and disc flowers, rays sometimes inconspicuous or absent.
Habitat
Moist places and canyons.