.jpg/75px-Bidens_pilosa_head10_(14975898027).jpg "Blackjack - Photo (c) Harry Rose, some rights reserved (CC BY)")
Blackjack (Bidens pilosa) | View Observations
Bidens pilosa is a species of flowering plant in the aster family. It is native to the Americas but it is known widely as an introduced species of other regions, including Eurasia, Africa, Australia, and the Pacific Islands. It is a tall branched weed with thin yellow flowers that develop into a cluster of barbed seeds. Its many common names include black-jack, beggar-ticks, cobbler's pegs, and Spanish needle. The seeds are like short, stiff hairs. They..
Other Names: Nålskära, Susuluk, Bidens pilosus, 鬼針草, 흰도깨비바늘, Chichik-Xul
Romerillo (Bidens alba) | View Observations
Bidens alba, which belongs to the family Asteraceae, is most commonly known as shepherd's needles, beggarticks, Spanish needles or butterfly needles. Bidens means two- toothed, describing the two projections found at the top of the seeds, and alba refers to the white ray florets. This plant is found in tropical and subtropical regions of North America, Asia, South America, and Africa, situated in gardens, road sides, farm fields and disturbed sites. B. alba is a
Other Names: Bidens pilosa alba, Bidens pilosa radiata, White Beggarticks, 大花婆婆針, 同治草, 黏人草
Bidens pilosa var. pilosa | View Observations
Bidens pilosa pilosa is a variety of plants with 181 observations
Other Names: Acahual Blanco, コセンダングサ, 白花鬼針
Bidens pilosa var. minor | View Observations
Bidens pilosa minor is a variety of plants with 109 observations
Other Names: 小白花鬼针, 흰도깨비바늘, コシロノセンダングサ, 小白花鬼針, 咸豐草
