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 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.

Coreopsis grandiflora 'Sunburst'

References

  1. ^ illustration by Alois Lunzer (1840-?)
  2. ^ Tropicos search for Coreopsis grandiflora
  3. ^ The Plant List, Coreopsis grandiflora Hogg ex Sweet
  4. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  5. ^ Biota of North America Program 2014 county distribution map
  6. ^ Flora of China, 大花金鸡菊 da hua jin ji ju Coreopsis grandiflora Hogg ex Sweet
  7. ^ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2022-01-12.
  8. ^ Flora of North America, Coreopsis grandiflora Hogg ex Sweet, Brit. Fl. Gard. 2: plate 175. 1826.
  9. ^ "Coreopsis grandiflora - Plant Finder". www.missouribotanicalgarden.org. Retrieved 2022-01-12.
  10. ^ "Coreopsis grandiflora (Common Coreopsis, Large Flower Tickseed, Largeflower Tickseed, Tickseed) | North Carolina Extension Gardener Plant Toolbox". plants.ces.ncsu.edu. Retrieved 2022-01-12.
  11. ^ "Coreopsis grandiflora 'Early Sunrise'". RHS. Retrieved 12 April 2020.