Coreopsis nuecensis, the crown tickseed, is an annual, herbaceous, flowering plant in the Asteraceae family. It is native to Texas, and probably Tamaulipas. There are reports of isolated populations in Michigan and Florida, both probably escapes from cultivation.
Description Coreopsis nuecensis is an annual herbaceous flowering plant that typically grows between tall. Ray florets are yellow with red or purple flecks; disc florets are yellow.Hooker, William Jackson 1836. Curtis's Botanical Magazine 63: plate 3460 and two subsequent text pages. full-page color illustration, diagnosis in Latin, description + commentary in English
C. nuecensis typically flowers from March to May.
Distribution and habitat Coreopsis nuecensis is native to Texas and probably Tamaulipas. There are isolated records of this species in Michigan, Florida and Louisiana.
It grows in sandy soils in oak and post-oak woodlands.
Conservation , NatureServe listed C. nuecensis as Apparently Secure (G4) worldwide with a note that the global status of this species needs to be reviewed. In individual states, it is listed as Vulnerable (G3) in Texas and No Status Rank in Louisiana.
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