Neha Patil (Editor)

Bidens frondosa

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Kingdom
  
Plantae

Subfamily
  
Asteroideae

Subtribe
  
Coreopsidinae

Scientific name
  
Bidens frondosa

Rank
  
Species

Order
  
Asterales

Tribe
  
Heliantheae

Genus
  
Bidens

Higher classification
  
Bidens

Bidens frondosa wwwminnesotawildflowersinfoudatar9ndp23qpdbi

Similar
  
Bidens, Bidens tripartita, Daisy family, Bidens cernua, Bidens pilosa

Bidens frondosa is a North American species of flowering plant in the aster family, sunflower family. It is widespread across much of Canada, the United States, and Mexico It is known in many other parts of the world as an introduced species, including Europe, Asia, Morocco, and New Zealand. Its many common names include devil's beggarticks, devil's-pitchfork, devil's bootjack, sticktights, bur marigold, pitchfork weed, tickseed sunflower, leafy beggarticks, and common beggar-ticks.

Contents

Bidens frondosa Bidens frondosa Devil39s beggarticks Go Botany

Description

Bidens frondosa Bidens frondosa Devil39s beggarticks Go Botany

Bidens frondosa is annual herb is usually about 20 to 60 (8-20 inches) centimeters tall, but it can reach 1.8 meters (72 inches or 6 feet) at times. The stems are square in cross-section and may branch near the top. The leaves are pinnate, divided into a few toothed triangular or lance-shaped leaflets usually up to 6 or 8 centimeters long, sometimes up to 12. The inflorescence is often a solitary flower head, but there may be pairs or arrays of several heads. The head contains many orange disc florets. It often lacks ray florets but some heads have a few small yellow rays. The fruit is a flat black or brown barbed cypsela up to a centimeter long which has two obvious hornlike pappi at one end.

The barbed pappi on the fruit help it stick to animals, facilitating seed dispersal.

Ecology

The defoliating caterpillar of Hadjina chinensis, which is limited to Bidens species, has been observed on this plant.

Invasive species

Bidens frondosa Bidens frondosa Beggarticks Discover Life

This plant is invasive in some parts of the world. In New Zealand it is classed as an environmental weed by the Department of Conservation. It is also weedy in its native range, occurring in pastures and fields and along roadsides.

Bidens frondosa Bidens frondosa Wikipedia

Bidens frondosa Bidens frondosa Colorado Wildflowers

References

Bidens frondosa Wikipedia