YELLOW OR YELLOWISH FLOWERS 
, Bur Marigold. BeggSiT-ticks {Bidens frondosa) . Composite 
family. July to October. 
A branching annual, one to several feet high. The flower- 
head (one-half to three-fourths inch broad) is made up of 
yellowish tubular flowers, with pistils and stamens, and is 
surrounded apparently by green leaves (involucre). The 
leaves have generally three, sometimes five leaflets with stalks, are 
broadly lance-shaped, coarsely toothed, and long-pointed. The 
two downwardly barbed " arms " of the seeds cause them to 
stick to the clothing. Wet places. 
Smaller Bur Marigold. Stick-tight (Bidens cernua). 
Composite family. July to September. 
An annual, eight inches to two feet high, nearly smooth, 
with small heads of yellowish tubular flowers, with or without 
yellow rays, neutral (without pistils and stamens), and not over 
one-half inch long. Leaves lance-shaped and unevenly toothed. 
Seeds generally with foiu: arms. 
Larger Bur Marigold (Bidens Icevis). Composite family. 
August to October. 
An annual, two or three feet high. Nodding flower-heads with 
large yellow neutral rays an inch long. The leaves are without 
stalks, lance-shaped, toothed, thin, pinnately veined. Seeds 
generally with two, sometimes with three or four arms. 
Swamp Beggar-ticks (Bidens connata). Composite family. 
September. 
An upright annual, with purple stem, generally branching, 
six inches to several feet high. The heads are a half inch to an 
inch and a half broad, practically without rays. The leaves are 
lance-shaped, coarsely toothed, and stalked. The seeds have 
two to four arms. Wet ground. 
