Coreopsis grandiflora is a North American species of perennial plant in the family Asteraceae. The common name is large-flowered tickseed.[4] It is found in eastern Canada (Quebec, Ontario, New Brunswick) and much of the United States, especially the south-central part of the country (Oklahoma, Arkansas, etc.).[5] The species is widely cultivated in China and naturalized there.[6]
| Coreopsis grandiflora | |
|---|---|
| Watercolor circa 1895[1] | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Coreopsis |
| Species: | C. grandiflora |
| Binomial name | |
| Coreopsis grandiflora | |
| Synonyms[3] | |
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Coreopsis grandiflora is a perennial herb[7] sometimes greater than 60 cm (2 feet) tall. It produces yellow ray and disc flowers.[8] Its native habitats include prairies, glades, open woods, thickets, roadsides and open ground. The Latin specific epithet grandiflora means large-flowered.[9] The plant attracts bees and butterflies.[10]
In the UK the cultivar 'Early Sunrise'[11] has received the Royal Horticultural Society's Award of Garden Merit.

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