Coreopsis nuecensis

Coreopsis nuecensis, the crown tickseed,^[3] 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.^[4]

Coreopsis nuecensis
Conservation status
Apparently Secure  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Coreopsis
Species:	C. nuecensis
Binomial name
Coreopsis nuecensis A.Heller[2]
Synonyms[2]
Coreopsis coronata Hook.

Description

Coreopsis nuecensis is an annual herbaceous flowering plant that typically grows between 10 and 50 cm (3.9 and 19.7 in) tall. Ray florets are yellow with red or purple flecks; disc florets are yellow.^[5][6]

C. nuecensis typically flowers from March to May.^[5]

Distribution and habitat

Coreopsis nuecensis is native to Texas and probably Tamaulipas. There are isolated records of this species in Michigan, Florida and Louisiana.^[4][5][2]

It grows in sandy soils in oak and post-oak woodlands.^[5]

Conservation

As of November 2024^[update], 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.^[1]