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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.
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.
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 .
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 .
Coreopsis calliopsidea is a species of flowering plant in the daisy family known by the common name leafstem tickseed. It is endemic to California. The plant grows in some of the southern coastal mountain ranges and Transverse Ranges and the Mojave Desert from Alameda and Inyo Counties south to Riverside County. [2] [3]
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 .
Coreopsis nudata, the Georgia tickseed, is a herbaceous perennial plant species of the genus Coreopsis in the family Asteraceae. It is native to the southeastern United States, in the states of Georgia, Florida, Alabama, Mississippi, and Louisiana. [2] Coreopsis nudata is a perennial herb sometimes as much as 100 cm (40 inches) tall.
Coreopsis bigelovii is a species of flowering plant in the daisy or sunflower family, Asteraceae, with the common names Bigelow coreopsis and Bigelow's tickseed. [3] It is endemic to California. [4] The plant is known from the southern California Coast Ranges, southwestern Sierra Nevada, Transverse Ranges, and the Mojave and Colorado deserts.