The Tickseed reference article from the English Wikipedia on 24-Apr-2004
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Tickseed

Helping orphans the way you would do it
Image:Coreopsis7222.jpg
Coreopsis gladiata, Coastalplain tickseed
with tree cricket
Hemingway, South Carolina

Tickseed, also called Coreopsis or sunflower, is a group of flowering plants in Family Asteraceae and Genus Coreopis. The flowers are usually yellow with a toothed tip.

C. auriculata -- Mouse-ear coreopsis.
C. gladiata -- Coastalplain tickseed.
C. lanceolata - Lance-leaved Coreopsis, Tickseed.
C. major -- Greater tickseed.
C. nuecensis -- Crown tickseed.
C. rosea -- Pink tickseed.
C. tintoria -- Garden coreopsis, Calliopsis.
C. verticillata - Threadleaf coreopsis, Whorled coreopsis.