Bidens tripartita gallery
Three-Lobed Beggarticks Gallery
Plant in flower
Bloomsburg Walking Trail (Columbia Co)
by George Chamuris on 09/08/2022
Close-Up of Flowering Heads
Note the characteristic (usually) absence of ray florets. Similar to Bidens connata, here the leafy, outer involucral bracts are larger.
Bloomsburg Walking Trail (Columbia Co)
by George Chamuris on 09/08/2022
Late-Season Flowering Plant
Bloomsburg Walking Trail (Columbia Co)
by George Chamuris on 09/27/2022
Late-Season flowering head
Note the 4-lobed corollas; in the similar Bidens connata the corolla is mostly 5-lobed.