Coreopsis nuecensoides, commonly known as the Rio Grande tickseed,[1] is a North American plant species of coreopsis in the family Asteraceae. It is native to southern and southeastern Texas and may also occur in northern Mexico.
Coreopsis nuecensoides is a perennial herb that grows up to 20 inches tall. The ray florets are yellow with red flecks near the base. The leaves are trifoliate. The inner phyllaries are glabrous.[2][3]
It primarily flowers from March to May, but will sometimes bloom again in the late fall.[3]
Coreopsis nuecensoides is usually found in the coastal areas of southern and southeastern Texas, and may also occur in Tamaulipas, Mexico.[3]
Coreopsis nuecensoides was first named and described in 1974 by Edwin Burnell Smith.[3][4]