Bidens bipinnata Common Names Spanish needles Family Asteraceae Habitat open woodlands, disturbed areas Observed Blooming mid September, 2018 early September, 2015 mid August to early October, 2014 Conservation considered weedy by some authorities Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Like Loading...