Open main menu

Wikipedia β

Heliopsis helianthoides is a species of flowering plant in the family Asteraceae, known by the common names rough oxeye,[2] smooth oxeye[3] and false sunflower.[4] It is native to eastern and central North America from Saskatchewan east to Newfoundland and south as far as Texas, New Mexico, and Georgia.[5][6][7]

Heliopsis helianthoides
Heliopsis July 2011-2.jpg

Secure (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Heliopsis
Species: H. helianthoides
Binomial name
Heliopsis helianthoides
(L.) Sweet

Heliopsis helianthoides is a rhizomatous herbaceous perennial growing 40–150 cm (16–59 in) tall. The toothed leaf blades are oval to triangular or lance-shaped and may be smooth or hairy or rough in texture. The flowers are produced from midsummer to early autumn (fall).[8] The inflorescence contains one to many composite flowerheads. Each head contains yellow ray florets which are generally 2–4 cm (0.8-1.6 inches) long. At the center are many yellow to brownish disc florets. The fruit is an achene about 5 mm long.[5]

In the wild, H. helianthoides may be found in wooded areas and tallgrass prairie, and sometimes along roadsides.[4]

It is a popular garden plant, and several cultivars are available with flowers of varying colors and shades. These include 'Summer Sun', 'Golden Plume', and 'Prairie Sunset'.[6] The following cultivars of H. helianthoides var. scabra ("rough")[9] have gained the Royal Horticultural Society's Award of Garden Merit:[10]

  • 'Benzinggold'[11]
  • 'Light of Loddon'[12]
  • 'Spitzentänzerin'[13]
  • 'Waterperry Gold'[14]


  1. ^ The Plant List, Heliopsis helianthoides (L.) Sweet
  2. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17. 
  3. ^ "Heliopsis helianthoides". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 19 January 2016. 
  4. ^ a b Heliopsis helianthoides. USDA NRCS Plant Guide.
  5. ^ a b Heliopsis helianthoides. Flora of North America.
  6. ^ a b Heliopsis helianthoides. Missouri Botanical Garden, Gardening help
  7. ^ Biota of North America Program 2014 county distribution map
  8. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964. 
  9. ^ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315. 
  10. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 43. Retrieved 3 March 2018. 
  11. ^ "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Benzinggold'". Retrieved 21 June 2013. 
  12. ^ "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Light of Loddon'". Retrieved 21 June 2013. 
  13. ^ "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Spitzentänzerin'". Retrieved 21 June 2013. 
  14. ^ "RHS Plant Selector - Heliopsis helianthoides var. scabra 'Waterperry Gold'". Retrieved 21 June 2013. 

External linksEdit