giant coreopsis

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Noun1.giant coreopsis - large treelike shrub having feathery leaves and clusters of large yellow flower heads; coastal southern California
coreopsis, tickseed, tickweed, tick-weed - any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America
References in periodicals archive ?
On each island, mice were captured by using Sherman live traps from habitats characterized by giant coreopsis (Coreopsis gigantea), a shrub native to California, to provide a standardized habitat for comparisons across islands.
A LAKE AMONG DUNES The Central Coast's Oso Flaco Lake is inset like a blue sapphire within white dunes--and it makes a top spring hike as the yellow blossoms of giant coreopsis and the violets of silver bush lupine dab the dunes with color.