The common names are whorled tickseed, whorled coreopsis, thread-leaved tickseed, thread leaf coreopsis, and pot-of-gold. Coreopsis verticillata is a North American species of tickseed in the sunflower family. A common name for Coreopsis is Tickseed. Coreopsis grandiflora is a North American species of perennial plants in the sunflower family. Other wildflowers within the reserve include the owl's clover, lupine, goldfields, cream cups and coreopsis. Preferred annuals include "Coreopsis" spp., "Eremalche" spp., "Astragalus" spp., and lupine. It is often grouped within "Coreopsis tinctoria" which it resembles. The stem of "Coreopsis gigantea" is a trunk up to tall, and in diameter. Coreopsis basalis (Golden-mane Coreopsis) is a North American plant species in the sunflower family. Giant Coreopsis is cultivated as an ornamental plant by specialty nurseries. They are yellow, and generally a paler shade of yellow than related native "Coreopsis". "Coreopsis leavenworthii"is cultivated in gardens for its attractive flowers. "Coreopsis" species are used as nectar and pollen for insects. "Coreopsis" is a variable genus closely related to "Bidens".