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These plants range from 46–120 centimetres (18–47 inches) in height. The flowers are usually yellow with a toothed tip, but can also be yellow-and-red bicolor or pink. [ 3 ] They have showy flower heads with involucral bracts in two distinct series of eight each, the outer being commonly connate at the base.
Bidens aristosa is a herbaceous, annual flowering plant that typically grows between 1-2 ft tall, but can grow up to five feet tall. The leaves are attached to petioles 1 to 3 cm long. The leaf blades are lanceolate to lance-linear, and are laciniately pinnatisect. It has numerous yellow flower heads with 5-10 ray florets and 12-40 disc florets.
Coreopsis tinctoria, commonly known as plains coreopsis, garden tickseed, golden tickseed, or calliopsis, is an annual forb. The species is common in Canada (from Quebec to British Columbia ), northeast Mexico ( Coahuila , Nuevo León , Tamaulipas ), and most of the United States , especially the Great Plains and Southern States .
Coreopsis tripteris is a North American species of flowering plant in the family Asteraceae. It is widespread across much of eastern and central North America from the Florida Panhandle west as far as eastern Texas and north to Québec and Ontario. [2] Its common names include tall tickseed, tall coreopsis, [3] and Atlantic coreopsis. [4]
Coreopsis verticillata is a North American species of tickseed in the sunflower family.It is found primarily in the east-central United States, from Maryland south to Georgia, with isolated populations as far west as Oklahoma and as far north as Québec and Ontario. [2]
Coreopsis lanceolata is a perennial plant sometimes attaining a height of over 60 cm (2 ft). The plant produces yellow flower heads singly at the top of a naked flowering stalk, each head containing both ray florets and disc florets. [6] Each flower measures 5–8 cm (2–3 in) across.
Coreopsis auriculata, the lobed tickseed [2] or mouse-ear tickseed, is a North American plant species of the family Asteraceae. It is native to the southeastern and east-central United States , from Louisiana east to the Florida Panhandle and as far north as Kentucky , Maryland , and West Virginia .
Tickseed (also tick-seed and tick seed) is a common name for seeds of several plants that stick to fur, clothing, or other surfaces when the plant is brushed against. The term may refer to any such seed in general, but more specifically to: