[Beggar Ticks: The Genus Bidens in the Columbia River Gorge of Oregon and Washington]
Devil's Pitchfork, Devil's Beggarticks, Leafy Beggarticks, Sticktight
Bidens frondosa
The photo above shows a close-up of the leafy bracts at the base of the flower head of leafy beggar ticks as seen from Dalton Point, Columbia
River Gorge......October 12, 2006. The flower head seen above is starting to go to seed so is not representative of the appearance of the head in full bloom.
The
photo at right shows a close-up of the ternately compound leaf of leafy beggar tick as seen at a spring immediately to the west of Dalton
Point, Columbia River Gorge......October 12, 2006.
Characteristics:
Similar Species:
Nodding beggar
tick Bidens cernuua : The leaves of nodding beggar tick
typically sessile except occasionally the lowermost) and are simple with pinnate venation. The flower heads have a ring of ray flowers around the outer margin.
Habitat:
Leafy beggar ticks are found in low wet places
such as in ditches, vernal ponds, and the margins of rivers and streams.
Range:Leafy beggar tick is found
east of Portland between the elevations of 0'-700' as far east as Celilo, OR.
Paul Slichter